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Dr. Abderezak Lashab
Aalborg University

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Research Keywords & Expertise

0 Power Electronics
0 Renewable Energy
0 photovoltaic
0 microgrids
0 Energy System

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photovoltaic
Energy System
Power Electronics
microgrids
Renewable Energy

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Short Biography

My research interests are on power electronics in general. Currently, I am focusing on photovoltaic systems with integrated energy storage on both converter topologies and control methods sides. The control methods include advanced control strategies such as Model Predictive Control. On the topologies, multilevel converters, impedance converters such quasi z-source inverter, and bidirectional dc-dc converters are the ones being currently investigated.

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Journal article
Published: 25 June 2021 in International Journal of Electrical Power & Energy Systems
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The increased use of DC microgrid for critical application lead to the necessity of advanced control design for a stable operation of the system. The loads connected to DC microgrid are controlled with power electronic devices and shows the behaviour of constant power load (CPL), which poses a serious challenge to stability as it adds nonlinearity and minimises the effective damping. This paper presents a robust controller design approach based on Hardy Space (H)-infinity control norms to tackle the nonlinearity added by CPL by expanding the region for stability. The design criteria are based on Lyapunov theory of nonlinear systems within the framework of Linear Matrix Inequality (LMI). The necessary and sufficient conditions are obtained in terms of linear matrix inequalities to ensure the transient performance and stability of the system. The LMI equation is solved to maximize the size of the estimated domain of stability. The performance of the proposed controller is verified using simulation in MATLAB/Simulink. The DC microgrid in this paper consists of a solar photovoltaic (PV) unit and a battery as an energy storage system together with loads. The Proposed controller not only ensures the stability of the system but also guarantees the improved transient performance of the closed loop system by expanding the size of the stability region.

ACS Style

Ila Rai; R Anand; Abderezak Lashab; Josep M. Guerrero. Hardy space nonlinear controller design for DC microgrid with constant power loads. International Journal of Electrical Power & Energy Systems 2021, 133, 107300 .

AMA Style

Ila Rai, R Anand, Abderezak Lashab, Josep M. Guerrero. Hardy space nonlinear controller design for DC microgrid with constant power loads. International Journal of Electrical Power & Energy Systems. 2021; 133 ():107300.

Chicago/Turabian Style

Ila Rai; R Anand; Abderezak Lashab; Josep M. Guerrero. 2021. "Hardy space nonlinear controller design for DC microgrid with constant power loads." International Journal of Electrical Power & Energy Systems 133, no. : 107300.

Journal article
Published: 18 May 2021 in IEEE Transactions on Industry Applications
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In recent years, due to the large spread of power electronics converters (PECs) onboard shipboard power systems (SPSs), harmonic contamination became an inherent sproblem. Moreover, as the SPSs are mostly operating in an islanded mode with a limited rating of the generators that feed heavy variable loads, voltage stability issues became a challenge as well. To address these issues, implementing PWM-based FACTS devices using IGBTs such as the active power filters may not be very practical for high-power SPSs due to their limited rated powers, high implementation cost, and high losses. The passive power filters (PPFs), and fixed capacitor-thyristor controlled reactors (FC-TCR) can be effective alternatives due to their capability to operate in high power applications, smaller losses and, lower cost. The aim of this paper is to provide more in-depth analytical investigations to evaluate and compare the behaviour of the PPFs and the FC-TCR compensator in reducing the harmonics and enhancing the voltage stability concurrently of high-power SPSs. In addition, details of the voltage stability concept are addressed to visualize the potential risk of the voltage collapse. Besides, the modeling of the FC-TCR and design of the closed-loop control algorithm to ensure the voltage stability is conducted. Via intensive simulation studies of a practical ship, which are carried out in MATLAB/Simulink environment, it has been demonstrated that the FC-TCR-based on the proposed design can enhance the power quality and voltage stability of SPSs better than traditional PPFs filters.

ACS Style

Yacine Terriche; Chun-Lien Su; Abderezak Lashab; Muhammad. U. Mutarraf; Mojtaba Mehrzadi; J. M. Guerrero; Juan Carlos Vasquez. Design of Cost-Effective Compensators to Enhance Voltage Stability and Harmonics Contamination of High-Power More Electric Marine Vessels. IEEE Transactions on Industry Applications 2021, 57, 4130 -4142.

AMA Style

Yacine Terriche, Chun-Lien Su, Abderezak Lashab, Muhammad. U. Mutarraf, Mojtaba Mehrzadi, J. M. Guerrero, Juan Carlos Vasquez. Design of Cost-Effective Compensators to Enhance Voltage Stability and Harmonics Contamination of High-Power More Electric Marine Vessels. IEEE Transactions on Industry Applications. 2021; 57 (4):4130-4142.

Chicago/Turabian Style

Yacine Terriche; Chun-Lien Su; Abderezak Lashab; Muhammad. U. Mutarraf; Mojtaba Mehrzadi; J. M. Guerrero; Juan Carlos Vasquez. 2021. "Design of Cost-Effective Compensators to Enhance Voltage Stability and Harmonics Contamination of High-Power More Electric Marine Vessels." IEEE Transactions on Industry Applications 57, no. 4: 4130-4142.

Journal article
Published: 10 February 2021 in IEEE Transactions on Industry Applications
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Addressing power quality issues in shipboard micro-grids (SMs), which are mainly attributable to the increased installation of power converters, has received much attention recently. To this end, static var compensators (SVCs), such as thyristor switched capacitors (TSCs) and fixed capacitors-thyristor controlled reactors (FCs-TCRs), can be effective solutions. Controlling these compensators, however, is not a trivial task as it involves sophisticated operations, especially estimating the firing angle, which should be carried out based on some nonlinear equations. This paper aims to propose the application of some simple yet numerically efficient algorithms based on Bisection, Newton-Raphson, False Position, and Scant methods for estimating the firing angle of the FC-TCR. The effectiveness and robustness of these algorithms are demonstrated via modeling of the FC-TCR with the electrical power system of a practical hybrid ferry under MATLAB/Simulink environment, where the results proved that the enhanced power quality issues respect the IEC standards 61000-4-7/30. Furthermore, an experimental setup consists of a digital signal processor and a programmable source is used to demonstrate that these techniques can be effectively applied in real-time applications.

ACS Style

Yacine Terriche; Chun-Lien Su; Abderezak Lashab; Muhammad Umair Mutarraf; Mojtaba Mehrzadi; Josep M. Guerrero; Juan Carlos Vasquez. Effective Controls of Fixed Capacitor-Thyristor Controlled Reactors for Power Quality Improvement in Shipboard Microgrids. IEEE Transactions on Industry Applications 2021, 57, 2838 -2849.

AMA Style

Yacine Terriche, Chun-Lien Su, Abderezak Lashab, Muhammad Umair Mutarraf, Mojtaba Mehrzadi, Josep M. Guerrero, Juan Carlos Vasquez. Effective Controls of Fixed Capacitor-Thyristor Controlled Reactors for Power Quality Improvement in Shipboard Microgrids. IEEE Transactions on Industry Applications. 2021; 57 (3):2838-2849.

Chicago/Turabian Style

Yacine Terriche; Chun-Lien Su; Abderezak Lashab; Muhammad Umair Mutarraf; Mojtaba Mehrzadi; Josep M. Guerrero; Juan Carlos Vasquez. 2021. "Effective Controls of Fixed Capacitor-Thyristor Controlled Reactors for Power Quality Improvement in Shipboard Microgrids." IEEE Transactions on Industry Applications 57, no. 3: 2838-2849.

Conference paper
Published: 18 December 2020 in Inventive Computation and Information Technologies
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This paper deals with a double-stage grid-connected photovoltaic (PV) system, operating as a shunt active power filter in order to improve the power quality and to supply the extracted PV power to the utility, simultaneously. On the grid side, a direct power control (DPC) is developed to supply the harvested PV energy into the electrical network based on the provided reference, which is estimated for unwanted harmonics and reactive power eliminations. On the PV side, an intelligent method of tracking the maximum power point based on fuzzy logic has been adopted to eventually solve the problem of the rapidly changing weather conditions. The overall control scheme is examined by simulation using MATLAB/Simulink software. The obtained simulation results demonstrate the feasibility, performance, and robustness of these control strategies under different test conditions.

ACS Style

Ghania Boudechiche; Mustapha Sarra; Oualid Aissa; Abderezak Lashab. Intelligent Solar Shunt Active Power Filter Based on Direct Power Control Strategy. Inventive Computation and Information Technologies 2020, 467 -477.

AMA Style

Ghania Boudechiche, Mustapha Sarra, Oualid Aissa, Abderezak Lashab. Intelligent Solar Shunt Active Power Filter Based on Direct Power Control Strategy. Inventive Computation and Information Technologies. 2020; ():467-477.

Chicago/Turabian Style

Ghania Boudechiche; Mustapha Sarra; Oualid Aissa; Abderezak Lashab. 2020. "Intelligent Solar Shunt Active Power Filter Based on Direct Power Control Strategy." Inventive Computation and Information Technologies , no. : 467-477.

Journal article
Published: 01 December 2020 in IEEE Electrification Magazine
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Electric Power Systems (EPSs) are of paramount importance in satellites. These systems are responsible for power generation, storage, delivery, and conditioning. A failure in an EPS may hinder all of the aforementioned functionalities, which, consequently, leads to a failure of the whole space mission. There are many technologies available in both industry and the literature of EPSs, where each has its own faulttolerance capabilities. On the other hand, the efficiency of EPSs is an important factor because it promotes having a higher power reserve, thus feeding payloads at all the necessary times. In this article, EPSs for satellite-based microgrids are reviewed, with more of a focus on their energy generation and storage, including their protection schemes. Moreover, sizing guidelines for energy generation and storage systems are also provided.

ACS Style

Abderezak Lashab; Mohammad Yaqoob; Yacine Terriche; Juan C. Vasquez; Josep M. Guerrero. Space Microgrids: New Concepts on Electric Power Systems for Satellites. IEEE Electrification Magazine 2020, 8, 8 -19.

AMA Style

Abderezak Lashab, Mohammad Yaqoob, Yacine Terriche, Juan C. Vasquez, Josep M. Guerrero. Space Microgrids: New Concepts on Electric Power Systems for Satellites. IEEE Electrification Magazine. 2020; 8 (4):8-19.

Chicago/Turabian Style

Abderezak Lashab; Mohammad Yaqoob; Yacine Terriche; Juan C. Vasquez; Josep M. Guerrero. 2020. "Space Microgrids: New Concepts on Electric Power Systems for Satellites." IEEE Electrification Magazine 8, no. 4: 8-19.

Journal article
Published: 30 October 2020 in European Journal of Electrical Engineering
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This paper deals with a shunt active power filter (SAPF) integrated in a photovoltaic (PV) system, which is interfaced to the grid via a double-stage configuration, for simultaneously improving the power quality in the existence of non-linear loads and injecting the PV harvested power to the power grid. The direct power control (DPC) based on the conventional Proportional-integral (PI) suffers from some shortcomings in the transient state, such as large overshoots and undershoots in the voltage. Long response time is another disadvantage when using such a controller. To overcome this situation, the proposed control method is equipped by an anti windup fractional order proportional-integral differentiator (AW-FOPID) regulator, replacing the standard PI or PID regulators to maintain the DC link voltage at its desired value with small overshoots and undershoots in the voltage, while maintaining a short response time. The AW-FOPID controller, however, has five parameters, which makes it troublesome to tune. Accordingly, to adjust this AW-FOPID parameters, the Particle Swarm Optimization (PSO) algorithm is employed by minimizing the Integral Time Absolute Error (ITAE). Furthermore, an intelligent algorithm for tracking the maximum power point (MPPT) based on fuzzy logic has been applied to eventually resolve the drawback of the rapidly changing weather conditions. The overall control scheme is examined by simulation using MATLAB/Simulink software. The obtained simulation results and comparative study demonstrate the feasibility and performance of this control strategy.

ACS Style

Ghania Boudechiche; Mustapha Sarra; Oualid Aissa; Jean-Paul Gaubert; Boualam Benlahbib; Abderezak Lashab. Anti-Windup FOPID-Based DPC for SAPF Interconnected to a PV System Tuned Using PSO Algorithm. European Journal of Electrical Engineering 2020, 22, 313 -324.

AMA Style

Ghania Boudechiche, Mustapha Sarra, Oualid Aissa, Jean-Paul Gaubert, Boualam Benlahbib, Abderezak Lashab. Anti-Windup FOPID-Based DPC for SAPF Interconnected to a PV System Tuned Using PSO Algorithm. European Journal of Electrical Engineering. 2020; 22 (4-5):313-324.

Chicago/Turabian Style

Ghania Boudechiche; Mustapha Sarra; Oualid Aissa; Jean-Paul Gaubert; Boualam Benlahbib; Abderezak Lashab. 2020. "Anti-Windup FOPID-Based DPC for SAPF Interconnected to a PV System Tuned Using PSO Algorithm." European Journal of Electrical Engineering 22, no. 4-5: 313-324.

Conference paper
Published: 28 September 2020 in 2020 6th IEEE International Energy Conference (ENERGYCon)
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In recent years, the significant revolution of shipboard micro-grids (SMs) towards all-electric ships offered several advantages such as high efficiency, better maneuverability, and controllability. However, the application of power electronics onboard SMs, particularly for DC and hybrid ships leads to serious power quality issues. The application of passive power filters (PPFs) has been largely used to solve some of the power quality issues, such as harmonics contamination, power factor compensation, and voltage drop enhancement. However, analyzing some crucial factors such as the harmonic attenuation factor (HAF) and filters sensitivity factor (FSF) of these filters have not been attracted much attention. In this paper, a more in-depth mathematical analysis of the HAF and FSF of these filters is conducted with details. Moreover, some developed solutions to improve these factors are suggested. Based on intensive simulation studies of a practical hybrid ferry, which are carried out under MATLAB/Simulink environment, it has been demonstrated that the conducted analysis and proposed solutions can enhance the filtering performance of the PPFs.

ACS Style

Yacine Terriche; Chun-Lien Su; Muhammad U. Mutarraf; Abderezak Lashab; Josep M. Guerrero; Juan C. Vasquez. Harmonics Rejection Capability Enhancement of Passive Power Filters for All-Electric-Shipboard Micro-Grids. 2020 6th IEEE International Energy Conference (ENERGYCon) 2020, 713 -718.

AMA Style

Yacine Terriche, Chun-Lien Su, Muhammad U. Mutarraf, Abderezak Lashab, Josep M. Guerrero, Juan C. Vasquez. Harmonics Rejection Capability Enhancement of Passive Power Filters for All-Electric-Shipboard Micro-Grids. 2020 6th IEEE International Energy Conference (ENERGYCon). 2020; ():713-718.

Chicago/Turabian Style

Yacine Terriche; Chun-Lien Su; Muhammad U. Mutarraf; Abderezak Lashab; Josep M. Guerrero; Juan C. Vasquez. 2020. "Harmonics Rejection Capability Enhancement of Passive Power Filters for All-Electric-Shipboard Micro-Grids." 2020 6th IEEE International Energy Conference (ENERGYCon) , no. : 713-718.

Journal article
Published: 30 July 2020 in IEEE Journal of Photovoltaics
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This article proposes an improved maximum power point tracking (MPPT) method that features a simple design, and improved efficiency in fast-changing irradiance conditions. The method uses three consecutive measurements and compares the power difference between each two consecutive samples, furthermore the voltage variation between the last two successive samples is observed. According to the obtained result of these comparisons, the algorithm applies the suitable action either increasing or decreasing the voltage. This simple concept allows easy implementation and reduces the implementation cost and calculation burden. Second, the method has a prompt tracking response during fast changes in solar irradiance (e.g., due to passing clouds). The proposed method is validated through experimental tests using solar irradiance profiles according to the EN50530 standard and is compared to the classical Perturb and Observe method. The experimental results show that the proposed MPPT effectively identifies the change in solar irradiance, and maintains high tracking efficiency even in fast-changing conditions.

ACS Style

Hafsa Abouadane; Abderrahim Fakkar; Dezso Sera; Abderezak Lashab; Sergiu Spataru; Tamas Kerekes. Multiple-Power-Sample Based P&O MPPT for Fast-Changing Irradiance Conditions for a Simple Implementation. IEEE Journal of Photovoltaics 2020, 10, 1481 -1488.

AMA Style

Hafsa Abouadane, Abderrahim Fakkar, Dezso Sera, Abderezak Lashab, Sergiu Spataru, Tamas Kerekes. Multiple-Power-Sample Based P&O MPPT for Fast-Changing Irradiance Conditions for a Simple Implementation. IEEE Journal of Photovoltaics. 2020; 10 (5):1481-1488.

Chicago/Turabian Style

Hafsa Abouadane; Abderrahim Fakkar; Dezso Sera; Abderezak Lashab; Sergiu Spataru; Tamas Kerekes. 2020. "Multiple-Power-Sample Based P&O MPPT for Fast-Changing Irradiance Conditions for a Simple Implementation." IEEE Journal of Photovoltaics 10, no. 5: 1481-1488.

Journal article
Published: 21 July 2020 in IEEE Transactions on Industrial Electronics
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A multilevel topology for photovoltaic (PV) systems with integrated energy storage (ES) is presented in this paper. Both PV and ES power cells are connected in series to form a DC-link, which is then connected to an H-bridge to convert the DC voltage to an AC one. The main advantage of the proposed converter compared to the cascaded-H-bridge (CHB) converter, as well as compared to the available multilevel topologies, is that fewer semiconductor devices are needed here. As the output voltage levels increase, more switches are saved, which results in a more efficient, cheaper, and smaller converter. So far, there is still no modulation strategy that is designed particularly for PV-fed multilevel converters with built-in ES. The standard modulations are unpractical for such an application since they suffer from deficiencies such as polluted output signals—thus, requiring larger output-filter—and over-modulation. A modified modulation strategy for PV+ES multilevel inverters is, therefore, introduced in this work. The proposal has been simulated and experimentally validated to evaluate its effectiveness, where it has been shown that the proposed topology is not exclusively feasible, but also suffers from less conduction and switching loss, achieving higher efficiency with respect to its counterpart the CHB.

ACS Style

Abderezak Lashab; Dezso Sera; Frederik Hahn; Luis Juarez Camurca; Marco Liserre; Josep M. Guerrero. A Reduced Power Switches Count Multilevel Converter-Based Photovoltaic System With Integrated Energy Storage. IEEE Transactions on Industrial Electronics 2020, 68, 8231 -8240.

AMA Style

Abderezak Lashab, Dezso Sera, Frederik Hahn, Luis Juarez Camurca, Marco Liserre, Josep M. Guerrero. A Reduced Power Switches Count Multilevel Converter-Based Photovoltaic System With Integrated Energy Storage. IEEE Transactions on Industrial Electronics. 2020; 68 (9):8231-8240.

Chicago/Turabian Style

Abderezak Lashab; Dezso Sera; Frederik Hahn; Luis Juarez Camurca; Marco Liserre; Josep M. Guerrero. 2020. "A Reduced Power Switches Count Multilevel Converter-Based Photovoltaic System With Integrated Energy Storage." IEEE Transactions on Industrial Electronics 68, no. 9: 8231-8240.

Review
Published: 03 July 2020 in IET Renewable Power Generation
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ACS Style

Nouha Mansouri; Abderezak Lashab; Josep M. Guerrero; Adnen Cherif. Photovoltaic power plants in electrical distribution networks: a review on their impact and solutions. IET Renewable Power Generation 2020, 14, 2114 -2125.

AMA Style

Nouha Mansouri, Abderezak Lashab, Josep M. Guerrero, Adnen Cherif. Photovoltaic power plants in electrical distribution networks: a review on their impact and solutions. IET Renewable Power Generation. 2020; 14 (12):2114-2125.

Chicago/Turabian Style

Nouha Mansouri; Abderezak Lashab; Josep M. Guerrero; Adnen Cherif. 2020. "Photovoltaic power plants in electrical distribution networks: a review on their impact and solutions." IET Renewable Power Generation 14, no. 12: 2114-2125.

Journal article
Published: 24 June 2020 in Energies
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This paper proposes an enhanced energy management system (EEMS) for a residential AC microgrid. The renewable energy-based AC microgrid with hybrid energy storage is broken down into three distinct parts: a photovoltaic (PV) array as a green energy source, a battery (BT) and a supercapacitor (SC) as a hybrid energy storage system (HESS), and apartments and electric vehicles, given that the system is for residential areas. The developed EEMS ensures the optimal use of the PV arrays’ production, aiming to decrease electricity bills while reducing fast power changes in the battery, which increases the reliability of the system, since the battery undergoes fewer charging/discharging cycles. The proposed EEMS is a hybrid control strategy, which is composed of two stages: a state machine (SM) control to ensure the optimal operation of the battery, and an operating mode (OM) for the best operation of the SC. The obtained results show that the EEMS successfully involves SC during fast load and PV generation changes by decreasing the number of BT charging/discharging cycles, which significantly increases the system’s life span. Moreover, power loss is decreased during passing clouds phases by decreasing the power error between the extracted power by the sources and the required equivalent; the improvement in efficiency reaches 9.5%.

ACS Style

Mehdi Dhifli; Abderezak Lashab; Josep M. Guerrero; Abdullah Abusorrah; Yusuf A. Al-Turki; Adnane Cherif. Enhanced Intelligent Energy Management System for a Renewable Energy-based AC Microgrid. Energies 2020, 13, 3268 .

AMA Style

Mehdi Dhifli, Abderezak Lashab, Josep M. Guerrero, Abdullah Abusorrah, Yusuf A. Al-Turki, Adnane Cherif. Enhanced Intelligent Energy Management System for a Renewable Energy-based AC Microgrid. Energies. 2020; 13 (12):3268.

Chicago/Turabian Style

Mehdi Dhifli; Abderezak Lashab; Josep M. Guerrero; Abdullah Abusorrah; Yusuf A. Al-Turki; Adnane Cherif. 2020. "Enhanced Intelligent Energy Management System for a Renewable Energy-based AC Microgrid." Energies 13, no. 12: 3268.

Journal article
Published: 09 June 2020 in IEEE Transactions on Power Electronics
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This letter proposes a multilevel inverter (MLI), which can be considered to be belonging to the cascaded H-bridge (CHB) family. In the proposed MLI, some of the H-bridges are connected to dc-sources, while most of the H-bridges are connected to only floating capacitors. A boosting circuit is integrated in the CHB, which permits charging the floating capacitors, enabling a higher voltage at the inverter's output with respect to the dc-sources total one. This boosting feature is essential in some applications like photovoltaic and fuel cell systems. Compared to the popular solutions in the literature, the proposal still offers a high boosting ratio with fewer employed components. A prototype of the proposed MLI has been built, and the results confirming its validity are shown in this letter. Efficiency analysis and evaluation with respect to one of the conventional solutions is also presented, where it is demonstrated that the proposal shows an improvement of 3.94% according to the European efficiency.

ACS Style

Abderezak Lashab; Dezso Sera; Tamas Kerekes; Yacine Terriche; Aissa Bouzid; Juan C. Vasquez; Josep M. Guerrero. A Cascaded H-Bridge With Integrated Boosting Circuit. IEEE Transactions on Power Electronics 2020, 36, 18 -22.

AMA Style

Abderezak Lashab, Dezso Sera, Tamas Kerekes, Yacine Terriche, Aissa Bouzid, Juan C. Vasquez, Josep M. Guerrero. A Cascaded H-Bridge With Integrated Boosting Circuit. IEEE Transactions on Power Electronics. 2020; 36 (1):18-22.

Chicago/Turabian Style

Abderezak Lashab; Dezso Sera; Tamas Kerekes; Yacine Terriche; Aissa Bouzid; Juan C. Vasquez; Josep M. Guerrero. 2020. "A Cascaded H-Bridge With Integrated Boosting Circuit." IEEE Transactions on Power Electronics 36, no. 1: 18-22.

Conference paper
Published: 01 June 2020 in 2020 IEEE International Conference on Environment and Electrical Engineering and 2020 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe)
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Recently, the evolutionary development in power electronics (PE) technologies onboard shipboard micro-grids (SMs) has been receiving significant attention. Indeed, this evolution added enormous advantages such as enhanced maneuverability and controllability. However, the installation of PE converters onboard SMs results in serious power quality issues. The application of the fixed capacitors-thyristor controlled reactors (FCs-TCRs) is largely used to improve some of the power quality issues. However, the non-linearity of the firing angle equation increases the complexity of controlling this sophisticated technology. In this paper, three simple and yet effective numerical algorithms are proposed to estimate the firing angle of the FC-TCR compensator. These algorithms that are based on Newton-Raphson, Bisection, and false position methods have proved their reliability and efficacy in estimating the firing angle under load and frequency variation. The effectiveness and robustness of the proposed methods are demonstrated via modeling an electrical power system of a practical hybrid ferry under MATLAB/Simulink environment, then the results are compared with the traditional technique.

ACS Style

Yacine Terriche; Chun-Lien Su; Muhammad. U. Mutarraf; Mojtaba Mehrzadi; Abderezak Lashab; Josep Guerrero; Juan C. Vasquez. Harmonics Mitigation in Hybrid AC/DC Shipboard Microgrids Using Fixed Capacitor-Thyristor Controlled Reactors. 2020 IEEE International Conference on Environment and Electrical Engineering and 2020 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe) 2020, 1 -6.

AMA Style

Yacine Terriche, Chun-Lien Su, Muhammad. U. Mutarraf, Mojtaba Mehrzadi, Abderezak Lashab, Josep Guerrero, Juan C. Vasquez. Harmonics Mitigation in Hybrid AC/DC Shipboard Microgrids Using Fixed Capacitor-Thyristor Controlled Reactors. 2020 IEEE International Conference on Environment and Electrical Engineering and 2020 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe). 2020; ():1-6.

Chicago/Turabian Style

Yacine Terriche; Chun-Lien Su; Muhammad. U. Mutarraf; Mojtaba Mehrzadi; Abderezak Lashab; Josep Guerrero; Juan C. Vasquez. 2020. "Harmonics Mitigation in Hybrid AC/DC Shipboard Microgrids Using Fixed Capacitor-Thyristor Controlled Reactors." 2020 IEEE International Conference on Environment and Electrical Engineering and 2020 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe) , no. : 1-6.

Conference paper
Published: 01 May 2020 in 020 1st International Conference on Communications, Control Systems and Signal Processing (CCSSP)
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In recent years, the impedance source network has been studied by many researchers focusing on high conversion gain power electronics. Several number of topologies have been developed. The combination of the Switched inductor cells and Z-source networks has shown its capability of achieving high voltage gains and good power conversion at low shoot through duty cycle values as compared to traditional Z-source network. This paper contributes as an overview of different Switched inductors cells combined with Z-source or quasi Z-source network. General analytical classification, main characterestics, and comparison of different topologies and their modifications, are provided in this paper. This study should be of interest for engineers and researchers when selecting their high voltage gain impedance source converter.

ACS Style

Abderahmane Abid; Laid Zellouma; Mansour Bouzidi; Abderezak Lashab; Boualaga Rabhi. Switched Inductor Z-source/quasi Z-source Network: State of Art and Challenges. 020 1st International Conference on Communications, Control Systems and Signal Processing (CCSSP) 2020, 477 -482.

AMA Style

Abderahmane Abid, Laid Zellouma, Mansour Bouzidi, Abderezak Lashab, Boualaga Rabhi. Switched Inductor Z-source/quasi Z-source Network: State of Art and Challenges. 020 1st International Conference on Communications, Control Systems and Signal Processing (CCSSP). 2020; ():477-482.

Chicago/Turabian Style

Abderahmane Abid; Laid Zellouma; Mansour Bouzidi; Abderezak Lashab; Boualaga Rabhi. 2020. "Switched Inductor Z-source/quasi Z-source Network: State of Art and Challenges." 020 1st International Conference on Communications, Control Systems and Signal Processing (CCSSP) , no. : 477-482.

Journal article
Published: 03 March 2020 in IEEE Transactions on Industry Applications
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The difference in power cell irradiances in cascaded multilevel converters results in different duty cycles among those cells when maintaining the maximum power point tracking (MPPT). However, the difference in cell duty cycles is undesired since it is proportional to the output voltage and current distortions. To this regard, a multilevel topology for photovoltaic (PV) applications is proposed, where an H6 bridge power cell is used instead of an H-bridge one. In case of solar irradiance mismatch among the power cells, the proposed converter injects power with lower voltage from the shaded cells without altering the PV voltage; hence maintaining MPPT operation. This modification allows retaining an equal duty cycle in all the power cells whatever the meteorological conditions are present; consequently, maintaining good output voltage and current waveform qualities. To test the effectiveness of the proposed solution, a detailed simulation model, as well as experimental prototype were built. The obtained results show that the proposed topology provides a significantly improved output voltage and current qualities compared to the cascaded H-bridge one. The performance of the proposed topology compared to one offering improved harmonics performance, according to the European efficiency, has been also compared, where an enhancement of 2.64% has been registered.

ACS Style

Abderezak Lashab; Dezso Sera; Frederik Hahn; Luis Camurca; Yacine Terriche; Marco Liserre; Josep M. Guerrero. Cascaded Multilevel PV Inverter With Improved Harmonic Performance During Power Imbalance Between Power Cells. IEEE Transactions on Industry Applications 2020, 56, 2788 -2798.

AMA Style

Abderezak Lashab, Dezso Sera, Frederik Hahn, Luis Camurca, Yacine Terriche, Marco Liserre, Josep M. Guerrero. Cascaded Multilevel PV Inverter With Improved Harmonic Performance During Power Imbalance Between Power Cells. IEEE Transactions on Industry Applications. 2020; 56 (3):2788-2798.

Chicago/Turabian Style

Abderezak Lashab; Dezso Sera; Frederik Hahn; Luis Camurca; Yacine Terriche; Marco Liserre; Josep M. Guerrero. 2020. "Cascaded Multilevel PV Inverter With Improved Harmonic Performance During Power Imbalance Between Power Cells." IEEE Transactions on Industry Applications 56, no. 3: 2788-2798.

Review
Published: 08 October 2019 in Energies
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Renewable energy systems (RESs), such as photovoltaic (PV) systems, are providing increasingly larger shares of power generation. PV systems are the fastest growing generation technology today with almost ~30% increase since 2015 reaching 509.3 GWp worldwide capacity by the end of 2018 and predicted to reach 1000 GWp by 2022. Due to the fluctuating and intermittent nature of PV systems, their large-scale integration into the grid poses momentous challenges. This paper provides a review of the technical challenges, such as frequency disturbances and voltage limit violation, related to the stability issues due to the large-scale and intensive PV system penetration into the power network. Possible solutions that mitigate the effect of large-scale PV system integration on the grid are also reviewed. Finally, power system stability when faults occur are outlined as well as their respective achievable solutions.

ACS Style

Nouha Mansouri; Abderezak Lashab; Dezso Sera; Josep M. Guerrero; Adnen Cherif. Large Photovoltaic Power Plants Integration: A Review of Challenges and Solutions. Energies 2019, 12, 3798 .

AMA Style

Nouha Mansouri, Abderezak Lashab, Dezso Sera, Josep M. Guerrero, Adnen Cherif. Large Photovoltaic Power Plants Integration: A Review of Challenges and Solutions. Energies. 2019; 12 (19):3798.

Chicago/Turabian Style

Nouha Mansouri; Abderezak Lashab; Dezso Sera; Josep M. Guerrero; Adnen Cherif. 2019. "Large Photovoltaic Power Plants Integration: A Review of Challenges and Solutions." Energies 12, no. 19: 3798.

Conference paper
Published: 01 September 2019 in 2019 IEEE Energy Conversion Congress and Exposition (ECCE)
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In cascaded multilevel quasi Z-source inverters (CM-qZSI), the intermittent and stochastic fluctuation of the solar power injected to the grid can be smoothened by connecting a battery in parallel with one of the qZ network capacitors. However, since CM-qZSI is a special case of the single phase qZSI, it suffers from some of its demerits, such as double line-frequency ripple. This affects the battery current, the second qZ network's inductor current, and the qZ network's capacitor voltages. This issue can be alleviated either by increasing the size of the passive elements or by developing advanced control schemes, such as MPC. However, MPC is computationally intensive, especially in multilevel converters. In this paper, a low computational control method for PV-fed battery assisted CM-qZSI is proposed, where proportional-resonant (PR) controller is introduced in the control algorithm. The prediction is performed only for the dc side of the converter; hence, the algorithm iterates for the shoot through and zero states only. As shown in the obtained results, by using the proposed method, the double line-frequency ripple can be significantly reduced, while a less computational effort compared to the conventional MPC is needed.

ACS Style

Abderezak Lashab; Dezso Sera; Josep Guerrero. Model Predictive Control of Cascaded Multilevel Battery Assisted Quasi Z-Source PV Inverter with Reduced Computational Effort. 2019 IEEE Energy Conversion Congress and Exposition (ECCE) 2019, 6501 -6507.

AMA Style

Abderezak Lashab, Dezso Sera, Josep Guerrero. Model Predictive Control of Cascaded Multilevel Battery Assisted Quasi Z-Source PV Inverter with Reduced Computational Effort. 2019 IEEE Energy Conversion Congress and Exposition (ECCE). 2019; ():6501-6507.

Chicago/Turabian Style

Abderezak Lashab; Dezso Sera; Josep Guerrero. 2019. "Model Predictive Control of Cascaded Multilevel Battery Assisted Quasi Z-Source PV Inverter with Reduced Computational Effort." 2019 IEEE Energy Conversion Congress and Exposition (ECCE) , no. : 6501-6507.

Journal article
Published: 28 August 2019 in IEEE Transactions on Industrial Electronics
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In the conventional photovoltaic (PV) fed quasi-Z (qZ) network-based impedance-source-converters (ISCs), the PV array is connected to their input, whereas in the proposed topology in this paper, an additional array is paralleled to the second qZ-network's capacitor (C2). This modification allows harvesting more PV power through full utilization of the employed qZ-network in the classical ISCs. Moreover, the proposal offers higher conversion efficiency since the current in the second qZ-network's inductor (iL2) is smaller. The voltage of the added PV array (PV2) is independent of the voltage of the primary array (PV1) in a wide range, which promotes tracking their maximum power points (MPPs) separatly, achieving a higher efficiency even under partial shading. The use of two separate MPPTs in one converter is a challenge since the perturbation done by the first MPPT alters the power in PV2 as well, and vice-versa. Therefore, a two MPPs tracker (MPPsT) algorithm, which perturbs two parameters and observes four variables, is proposed for the presented converter. The theoretical analysis is validated through real-time hardware-in-the-loop tests, and it demonstrates that at least 11% more power can be harvested compared to the conventional qZ-network-based ISC.

ACS Style

Abderezak Lashab; Dezso Sera; Joao Martins; Josep Guerrero. Dual-Input Quasi-Z-Source PV Inverter: Dynamic Modeling, Design, and Control. IEEE Transactions on Industrial Electronics 2019, 67, 6483 -6493.

AMA Style

Abderezak Lashab, Dezso Sera, Joao Martins, Josep Guerrero. Dual-Input Quasi-Z-Source PV Inverter: Dynamic Modeling, Design, and Control. IEEE Transactions on Industrial Electronics. 2019; 67 (8):6483-6493.

Chicago/Turabian Style

Abderezak Lashab; Dezso Sera; Joao Martins; Josep Guerrero. 2019. "Dual-Input Quasi-Z-Source PV Inverter: Dynamic Modeling, Design, and Control." IEEE Transactions on Industrial Electronics 67, no. 8: 6483-6493.

Journal article
Published: 18 July 2019 in IEEE Access
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The shunt active power filters (SAPFs) are broadly utilized to improve the power quality (PQ) issues of electric power systems. A crucial issue in implementing these filters is the accurate estimation of the grid voltage phase/frequency. Indeed, the dynamic behavior and the performance of the SAPF strongly rely on this point. To deal with this challenge, a fast yet effective open-loop synchronization (OLS) technique based on Cascaded Delayed Signal Cancellation (CDSC) is presented in this paper. The proposed technique can reject the odd-order harmonics, the DC offset of the grid voltage, and its dynamic response during transients take an only half cycle of the fundamental frequency. To adapt the proposed OLS technique to the frequency changes, an efficient frequency estimator is also presented. The effectiveness of the proposed OLS technique is demonstrated using simulation and experimental results.

ACS Style

Yacine Terriche; Muhammad Umair Mutarraf; Mojtaba Mehrzadi; Abderezak Lashab; Josep M. Guerrero; Juan C. Vasquez; Djallel Kerdoun. Adaptive CDSC-Based Open-Loop Synchronization Technique for Dynamic Response Enhancement of Active Power Filters. IEEE Access 2019, 7, 96743 -96752.

AMA Style

Yacine Terriche, Muhammad Umair Mutarraf, Mojtaba Mehrzadi, Abderezak Lashab, Josep M. Guerrero, Juan C. Vasquez, Djallel Kerdoun. Adaptive CDSC-Based Open-Loop Synchronization Technique for Dynamic Response Enhancement of Active Power Filters. IEEE Access. 2019; 7 ():96743-96752.

Chicago/Turabian Style

Yacine Terriche; Muhammad Umair Mutarraf; Mojtaba Mehrzadi; Abderezak Lashab; Josep M. Guerrero; Juan C. Vasquez; Djallel Kerdoun. 2019. "Adaptive CDSC-Based Open-Loop Synchronization Technique for Dynamic Response Enhancement of Active Power Filters." IEEE Access 7, no. : 96743-96752.

Conference paper
Published: 01 June 2019 in 2019 IEEE International Conference on Environment and Electrical Engineering and 2019 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe)
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This paper presents a grid connected multilevel topology for photovoltaic (PV) systems. Usually, multilevel converters for PV application suffer from a distorted output current and voltage when the submodules are not subjected to an even solar irradiance. The difference in submodules irradiance results in different submodules duty cycles when maintaining the maximum power point tracking (MPPT). The distortion of the output current is proportional with the difference of the cells duty cycles. To this regard, a multilevel topology for PV applications is proposed along with a control and modulation strategy. In this proposed topology, H6 bridge-based cell is used instead of an H-bridge one. In case of solar irradiance mismatch, the proposed converter injects power with less voltage from the shaded cells without altering the PV voltage, and hence, the MPPT. This modification allows retaining a tantamount duty cycle in all cells whatever the meteorological conditions are present. To test the effectiveness of the proposed idea, a detailed simulation model was set up. The results show that the proposed concept provides a significantly improved output current quality compared to the cascaded H-bridge topology.

ACS Style

Abderezak Lashab; Dezso Sera; Josep M. Guerrero. Harmonics Mitigation in Cascaded Multilevel PV Inverters During Power Imbalance Between Cells. 2019 IEEE International Conference on Environment and Electrical Engineering and 2019 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe) 2019, 1 -6.

AMA Style

Abderezak Lashab, Dezso Sera, Josep M. Guerrero. Harmonics Mitigation in Cascaded Multilevel PV Inverters During Power Imbalance Between Cells. 2019 IEEE International Conference on Environment and Electrical Engineering and 2019 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe). 2019; ():1-6.

Chicago/Turabian Style

Abderezak Lashab; Dezso Sera; Josep M. Guerrero. 2019. "Harmonics Mitigation in Cascaded Multilevel PV Inverters During Power Imbalance Between Cells." 2019 IEEE International Conference on Environment and Electrical Engineering and 2019 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe) , no. : 1-6.