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This paper presents a generalized structure of a new three-phase multilevel inverter (MLI) which ensures better performance with the minimum number of components for different applications including DC power supply-based renewable energy sources. The proposed MLI topology is developed in the form of several basic blocks which are individually made of a DC voltage source and a semiconductor switch. All the balanced DC sources required for the proposed inverter are made through a high-frequency magnetic link. The single–phase and three-phase five level (5-L) inverters with the rating of 3.5 and 100 kVA, respectively, are simulated, while a five level (5-L) single-phase inverter is implemented for demonstrating the switching strategy and different operational modes. The rigorous calculations are presented to determine switching losses and conduction losses which are minimum because only three conducting switches are responsible for generating each voltage level during every operating mode. The structure of the aforementioned inverter provides optimized value of total standing voltage (TSV = 5.5Vdc with 5-L single-phase leg) of the system. The proposed inverter offers energy conversion efficiency of 94.84% for 5-L single-phase leg which is significantly enhanced and it also minimizes the equipment ratings as well as overall costs of the entire system.
Halim Mondol; Shuvra Prokash Biswas; Kamal Hosain. A new magnetic linked three-phase multilevel inverter with reduced number of switches and balanced DC sources. Electrical Engineering 2021, 1 -13.
AMA StyleHalim Mondol, Shuvra Prokash Biswas, Kamal Hosain. A new magnetic linked three-phase multilevel inverter with reduced number of switches and balanced DC sources. Electrical Engineering. 2021; ():1-13.
Chicago/Turabian StyleHalim Mondol; Shuvra Prokash Biswas; Kamal Hosain. 2021. "A new magnetic linked three-phase multilevel inverter with reduced number of switches and balanced DC sources." Electrical Engineering , no. : 1-13.
Due to global warming and shortage of fossil fuels, the grid-connected solar photovoltaic (PV) system has gained significant popularity all over the world. The modular multilevel cascaded (MMC) inverter is the natural choice for step-up transformer and line filter less direct medium voltage grid integration of solar PV systems. However, power quality and loss are the important issues while connecting the PV system to the medium voltage grid through MMC inverter. Modulation technique is the key to maintain output power quality, e.g., total harmonic distortion (THD) and to ensure low switching and conduction losses. In this paper, an advanced modulation technique named “triangle saturated common mode pulse width modulation (TSCMPWM)” control is proposed for a 3-phase 5-level MMC inverter-based grid-tied PV system. Compared to traditional modulation techniques, the proposed TSCMPWM control offers the lowest voltage THD as well as lower inverter power losses. Performance of the proposed modulation technique is evaluated in MATLAB/Simulink environment and tested with a reduced scale prototype test platform. Both simulation and experimental results show the effectiveness of the proposed modulation technique.
Safa Haq; Shuvra Prokash Biswas; Kamal Hosain; Ashib Rahman; Rabiul Islam; Sumaya Jahan. A Modular Multilevel Converter with an Advanced PWM Control Technique for Grid-Tied Photovoltaic System. Energies 2021, 14, 331 .
AMA StyleSafa Haq, Shuvra Prokash Biswas, Kamal Hosain, Ashib Rahman, Rabiul Islam, Sumaya Jahan. A Modular Multilevel Converter with an Advanced PWM Control Technique for Grid-Tied Photovoltaic System. Energies. 2021; 14 (2):331.
Chicago/Turabian StyleSafa Haq; Shuvra Prokash Biswas; Kamal Hosain; Ashib Rahman; Rabiul Islam; Sumaya Jahan. 2021. "A Modular Multilevel Converter with an Advanced PWM Control Technique for Grid-Tied Photovoltaic System." Energies 14, no. 2: 331.
The use of different control techniques has become very popular for controlling the performance of grid-connected photovoltaic (PV) systems. Although the proportional-integral (PI) control technique is very popular, there are some difficulties such as less stability, slow dynamic response, low reference tracking capability, and lower output power quality in solar PV applications. In this paper, a robust, fast, and dynamic proportional-integral resonance controller with a harmonic and lead compensator (PIR + HC + LC) is proposed to control the current of a 15-level neutral-point-clamped (NPC) multilevel inverter. The proposed controlled is basically a proportional-integral resonance (PIR) controller with the feedback of a harmonic compensator and a lead compensator. The performance of the proposed controller is analyzed in a MATLAB/Simulink environment. The simulation result represents admirable performance in terms of stability, sudden load change response, fault handling capability, reference tracking capability, and total harmonic distortion (THD) than those of the existing controllers. The responses of the inverter and grid outlets under different conditions are also analyzed. The harmonic compensator decreases the lower order harmonics of grid voltage and current, and the lead compensator provides the phase lead. It is expected that the proposed controller is a dynamic aspirant in the grid-connected PV system.
Sumaya Jahan; Shuvra Biswas; Kamal Hosain; Rabiul Islam; Safa Haq; Abbas Kouzani; M Mahmud. An Advanced Control Technique for Power Quality Improvement of Grid-Tied Multilevel Inverter. Sustainability 2021, 13, 505 .
AMA StyleSumaya Jahan, Shuvra Biswas, Kamal Hosain, Rabiul Islam, Safa Haq, Abbas Kouzani, M Mahmud. An Advanced Control Technique for Power Quality Improvement of Grid-Tied Multilevel Inverter. Sustainability. 2021; 13 (2):505.
Chicago/Turabian StyleSumaya Jahan; Shuvra Biswas; Kamal Hosain; Rabiul Islam; Safa Haq; Abbas Kouzani; M Mahmud. 2021. "An Advanced Control Technique for Power Quality Improvement of Grid-Tied Multilevel Inverter." Sustainability 13, no. 2: 505.
Most traditional AC/AC power converters suffer from power quality problems and multi-stage power conversion losses. The rectifier and inverter-based AC/AC converter topology not only increases multi-stage power conversion losses, but also increases the volume, weight, and cost, and decreases the longevity of the converter due to the DC-link capacitor, line filter and electromagnetic interference (EMI) filter. High-frequency (about 10 kHz) switching advanced pulse width modulation techniques are generally used in order to compensate the power quality problems, which increase the switching losses and introduce the EMI problems. In this paper, a new generalized step-down single-stage line-frequency switching AC/AC power converter topology is proposed. The proposed converter uses line-frequency switching, and does not require any pulse width modulation techniques. The proposed topology offers promising performances in terms of lower order harmonics, total harmonic distortion, the elimination of DC-link capacitors and EMI filters, and switching losses. The circuit was designed and simulated in a MATLAB/Simulink environment. A scaled-down laboratory prototype of the proposed topology was developed in order to validate the feasibility. The experimental and simulation results reveal the feasibility of the proposed generalized step-down single-stage converter topology, and its excellent features.
Shihab Uddin; Shuvra Biswas; Rabiul Islam; Shamim Anower; Abbas Kouzani; M Mahmud. A New Generalized Step-Down Single-Stage AC/AC Power Converter. Sustainability 2020, 12, 9181 .
AMA StyleShihab Uddin, Shuvra Biswas, Rabiul Islam, Shamim Anower, Abbas Kouzani, M Mahmud. A New Generalized Step-Down Single-Stage AC/AC Power Converter. Sustainability. 2020; 12 (21):9181.
Chicago/Turabian StyleShihab Uddin; Shuvra Biswas; Rabiul Islam; Shamim Anower; Abbas Kouzani; M Mahmud. 2020. "A New Generalized Step-Down Single-Stage AC/AC Power Converter." Sustainability 12, no. 21: 9181.
This paper presents a novel single-phase to single-phase multiconverter topology that can be applied in multiple areas. The proposed multiconverter is designed with only two soft power semiconductor switches (e.g. MOSFET or IGBT), four power diodes and a center-tapped transformer which makes it more compact in size, decrease the gate driving complexity, reduce the total equipment costs and enhance the energy conversion efficiency with minimized losses. Furthermore, the utilization of the transformer in the proposed converter mitigates the multiple AC source requirement problems and provides galvanic isolation which increases the reliability of the converter. Moreover, the presented multiconverter is applicable in various areas including electric traction as a speed controller, induction heating, AC and DC variable power supplies, etc. which signify the competence of this converter in energy conversion appliances. However, a comparative analysis of the offered converter with the existing AC-AC converters is also introduced in this paper with respect to the number of components, equipment costs, gate driving complexity, and application areas. In order to evaluate the performance of the proposed multiconverter, the simulation-based results carried out in MATLAB/Simulink are presented and analyzed in this paper with proper descriptions. Finally, a scaled-down prototype is developed in the laboratory to validate the simulation results and the feasibility of the proposed multiconverter.
Halim Mondol; Shihab Uddin; Eklas Hossain; Shuvra Prokash Biswas. A Compact and Cost Efficient Multiconverter for Multipurpose Applications. IEEE Access 2020, 8, 86810 -86823.
AMA StyleHalim Mondol, Shihab Uddin, Eklas Hossain, Shuvra Prokash Biswas. A Compact and Cost Efficient Multiconverter for Multipurpose Applications. IEEE Access. 2020; 8 (99):86810-86823.
Chicago/Turabian StyleHalim Mondol; Shihab Uddin; Eklas Hossain; Shuvra Prokash Biswas. 2020. "A Compact and Cost Efficient Multiconverter for Multipurpose Applications." IEEE Access 8, no. 99: 86810-86823.
A new three phase multilevel inverter with reduced number of components count is proposed in this paper. This inverter is designed using a single DC source per phase to generate multiple level output voltage which makes it suitable for low and medium voltage applications, including ac-coupled renewables or energy storages. A generalized circuit configuration is shown in this paper following which the number of output voltage level can be increased as per expectation. Although, each element endures the voltage stress equivalent to the input DC voltage, the value of total standing voltage (TSV) is reduced by the utilization of minimized number of components with respect to the number of series connected capacitors. Further, staircase modulation scheme is used to generate the switching signals. Hence, the proposed inverter can be operated at low switching frequency with optimal output current harmonic distortion which decreases switching losses and suppresses power factor falling. In order to validate the theoretical explanations and practical performances of the proposed inverter, the hypothesis is simulated for 9, 13 and 39 output voltage level inverters for three phase with a line voltage total harmonic distortion (THD) of 6.06%, 4.16% and 2.10% respectively in MATLAB/Simulink and a 5-level single phase laboratory prototype is implemented in the laboratory.
Halim Mondol; Mehmet Rida Tur; Shuvra Prokash Biswas; Kamal Hosain; Shuvangkar Shuvo; Eklas Hossain. Compact Three Phase Multilevel Inverter for Low and Medium Power Photovoltaic Systems. IEEE Access 2020, 8, 60824 -60837.
AMA StyleHalim Mondol, Mehmet Rida Tur, Shuvra Prokash Biswas, Kamal Hosain, Shuvangkar Shuvo, Eklas Hossain. Compact Three Phase Multilevel Inverter for Low and Medium Power Photovoltaic Systems. IEEE Access. 2020; 8 (99):60824-60837.
Chicago/Turabian StyleHalim Mondol; Mehmet Rida Tur; Shuvra Prokash Biswas; Kamal Hosain; Shuvangkar Shuvo; Eklas Hossain. 2020. "Compact Three Phase Multilevel Inverter for Low and Medium Power Photovoltaic Systems." IEEE Access 8, no. 99: 60824-60837.
In this paper, a robust and high performance second order resonant controller with lead compensator (SORC+LC) is proposed to control the voltage of a distributed single-phase islanded microgrids (SPMGs) for various loads. The controller is designed to mitigate the voltage oscillation caused by the nature of the loads. The model of controller is based on the resonant controller with a feedback combination of lead compensator regulator. The proposed controller performs better in term of settling time, overshoot, voltage oscillation, and voltage THD for various load conditions. With the proposed controller, a settling time of 2 ms and a minimum THD of 0.12% are obtained in particular load conditions. Less phase error and oscillation are also observed in output grid voltage. Thus offered controller is a strong candidate for single phase islanded microgrid.
Masudur Rahman; Shuvra Prokash Biswas; Kamal Hosain; Rafiqul Islam Sheikh. A Second Order High Performance Resonant Controller for Single Phase Islanded Microgrid. 2019 4th International Conference on Electrical Information and Communication Technology (EICT) 2019, 1 -6.
AMA StyleMasudur Rahman, Shuvra Prokash Biswas, Kamal Hosain, Rafiqul Islam Sheikh. A Second Order High Performance Resonant Controller for Single Phase Islanded Microgrid. 2019 4th International Conference on Electrical Information and Communication Technology (EICT). 2019; ():1-6.
Chicago/Turabian StyleMasudur Rahman; Shuvra Prokash Biswas; Kamal Hosain; Rafiqul Islam Sheikh. 2019. "A Second Order High Performance Resonant Controller for Single Phase Islanded Microgrid." 2019 4th International Conference on Electrical Information and Communication Technology (EICT) , no. : 1-6.
Modular multilevel converter (MMC) has been using for industrial motor drive specially three-phase induction motor drive applications over a decade. The switching techniques in MMC play a vital role to improve the power quality for induction motor drive. In this paper, the performance of various existing switching techniques in 11- level MMC fed induction motor is investigated through MATLAB/Simulink simulation results. The performance of switching techniques is studied in terms of speed, torque, inrush current, inverter output current, and total harmonic distortion (THD). Based on the simulation results, high performance switching technique is identified and challenges associated with the selection of the appropriate switching technique are highlighted.
Safa Haq; Shuvra Prokash Biswas; Kamal Hosain; Rafiqul Islam Sheikh. Performance Analysis of Switching Techniques in Modular Multilevel Converter Fed Induction Motor. 2019 4th International Conference on Electrical Information and Communication Technology (EICT) 2019, 1 -6.
AMA StyleSafa Haq, Shuvra Prokash Biswas, Kamal Hosain, Rafiqul Islam Sheikh. Performance Analysis of Switching Techniques in Modular Multilevel Converter Fed Induction Motor. 2019 4th International Conference on Electrical Information and Communication Technology (EICT). 2019; ():1-6.
Chicago/Turabian StyleSafa Haq; Shuvra Prokash Biswas; Kamal Hosain; Rafiqul Islam Sheikh. 2019. "Performance Analysis of Switching Techniques in Modular Multilevel Converter Fed Induction Motor." 2019 4th International Conference on Electrical Information and Communication Technology (EICT) , no. : 1-6.
There is an increasing interest within the industrial community to apply single-phase cycloconverters in variable speed drives and variable frequency applications. For variable speed drive application of cycloconverter to improve the power quality i.e., the harmonic components of the converter’s output voltage should be low which are always measured in terms of total harmonic distortions (THDs), different types of pulse width modulation (PWM) switching techniques are used. But the use of complex firing angle modulation increases the complexity of gate drive, switching losses and filter size. In this paper, a modified single-phase to single-phase 1/3 rd (50 Hz to 16.67 Hz) cycloconverter using multiwinding transformer is proposed which significantly reduces the THD from the output voltage without using any complex switching modulation techniques. A reduction of 13.20% THD is achieved in this paper. The mathematical and simulation results elucidate the excellent feature of the proposed converter. All the simulation works are brought to pass in MATLAB/Simulink environment.
Ashish Mahanta; Shuvra Prokash Biswas. THD Reduction of Single-Phase to Single-Phase Step-Down Cycloconverter Using Multiwinding Transformer. 2019 5th International Conference on Advances in Electrical Engineering (ICAEE) 2019, 108 -112.
AMA StyleAshish Mahanta, Shuvra Prokash Biswas. THD Reduction of Single-Phase to Single-Phase Step-Down Cycloconverter Using Multiwinding Transformer. 2019 5th International Conference on Advances in Electrical Engineering (ICAEE). 2019; ():108-112.
Chicago/Turabian StyleAshish Mahanta; Shuvra Prokash Biswas. 2019. "THD Reduction of Single-Phase to Single-Phase Step-Down Cycloconverter Using Multiwinding Transformer." 2019 5th International Conference on Advances in Electrical Engineering (ICAEE) , no. : 108-112.
Advancement in solid-state semiconductor technologies has led to the medium-voltage power converters, by obviating the need of step-up transformers in renewable power generation systems. To improve the injected power quality of medium-voltage grid-tied power converters i.e., the harmonic components (e.g. total harmonic distortions) of the output current is minimized by various types of pulse width modulation (PWM) switching schemes. In this paper, a composite harmonic injected pulse width modulation (CHIPWM) switching scheme is proposed based on the modular multilevel cascaded (MMC) converter. The main feature of this modulation scheme is that it can improve the frequency spectra while reducing the switching power losses. In order to validate the performance of the proposed switching scheme, a 55-level, 3-phase MMC inverter is made in the MATLAB/Simulink environment for an 11kV renewable energy based power system. The performance of the proposed switching scheme is compared with different existing switching schemes in terms of THDs and switching power loss. From the simulation and numerical results, it is obvious that the 55-level MMC inverter with the proposed modulation scheme improves the injected power quality and reduces the inverter power losses as compared to the existing modulation schemes, which are very essential for the integration of renewable energy sources (RESs) to the existing utility grid.
Halim Mondol; Shuvra Prokash Biswas; T.K Roy; Kamal Hosain; Faruk Kibria. A Novel Modulation Scheme to Improve the Injected Power Quality for Modular Multilevel Medium Voltage Grid-Tied Power Converters. 2019 International Conference on Electrical, Computer and Communication Engineering (ECCE) 2019, 1 -6.
AMA StyleHalim Mondol, Shuvra Prokash Biswas, T.K Roy, Kamal Hosain, Faruk Kibria. A Novel Modulation Scheme to Improve the Injected Power Quality for Modular Multilevel Medium Voltage Grid-Tied Power Converters. 2019 International Conference on Electrical, Computer and Communication Engineering (ECCE). 2019; ():1-6.
Chicago/Turabian StyleHalim Mondol; Shuvra Prokash Biswas; T.K Roy; Kamal Hosain; Faruk Kibria. 2019. "A Novel Modulation Scheme to Improve the Injected Power Quality for Modular Multilevel Medium Voltage Grid-Tied Power Converters." 2019 International Conference on Electrical, Computer and Communication Engineering (ECCE) , no. : 1-6.
This paper presents a real-time hardware-in-the-loop(HIL) simulator based triggering pulse generation technique for firing power electronic switching elements including MOSFET and IGBT for single phase sinusoidal pulse width modulated (SPWM) inverter using Arduino microcontroller. In case of designing an inverter, triggering signal generation is necessary to fire the switching elements. The objective of this work is to generate gate pulse for triggering the switching element using real time hardware-in-the-loop (HIL) technique on MATLAB/Simulink environment. The logic block designed in MATLAB/Simulink is directly burned into Arduino's flash memory without using any kind of coding technique. Control blocks are created in MATLAB/Simulink while measurement signals from the hardware circuit are taken into MATLAB/Simulink through serial communication protocol of Arduino. PWM signals are generated by Arduino using MATLAB/Simulink and sent to a power electronic converter. Finally, to validate the proposed concept, a 1 kW laboratory prototype of single phase inverter is tested using the proposed triggering pulse generator. This method can be used to generate different types of pulse signals for various converter applications without programming complexity. Among all existing technique of triggering signal generation, the proposed technique is the cheapest and easiest to implement.
Shuvra Prokash Biswas; Kamal Hosain; Waliur Rahman; Halim Mondol; Parag Mazumder. Real-Time Hardware-in-the-Loop Simulator Based Triggering Pulse Generator for Single Phase Inverter. 2018 International Conference on Advancement in Electrical and Electronic Engineering (ICAEEE) 2018, 1 -4.
AMA StyleShuvra Prokash Biswas, Kamal Hosain, Waliur Rahman, Halim Mondol, Parag Mazumder. Real-Time Hardware-in-the-Loop Simulator Based Triggering Pulse Generator for Single Phase Inverter. 2018 International Conference on Advancement in Electrical and Electronic Engineering (ICAEEE). 2018; ():1-4.
Chicago/Turabian StyleShuvra Prokash Biswas; Kamal Hosain; Waliur Rahman; Halim Mondol; Parag Mazumder. 2018. "Real-Time Hardware-in-the-Loop Simulator Based Triggering Pulse Generator for Single Phase Inverter." 2018 International Conference on Advancement in Electrical and Electronic Engineering (ICAEEE) , no. : 1-4.
This paper presents Arduino microcontroller based real-time simulator enabled hardware-in-the-loop (HIL) electric DC machine drive setup for industrial and educational purposes. The electric drive systems used in many industrial applications require higher performance, reliability, variable speed due to make ease of controllability. The objective of this work is to create a platform for laboratory experiments to enhance drive control design and testing for educational and industrial purposes. In industry DC motor is widely used for speed control and load characteristics because of its easy controllability which provides efficient and precise output. The main purpose of a motor speed controller is to take a signal representing the required speed and to drive a motor at that speed. Microcontrollers can provide easy control of DC motor. Controlling the pulse width modulation (PWM) duty cycle is equivalent to controlling motor terminal voltage, which in turn adjusts directly the motor speed. In this paper, the hardware controlling process is done by MATLAB/Simulink environment which runs the hardware circuitry in real time interval. The Arduino microcontroller is programmed by MATLAB/Simulink and the motor controller is driven by Arduino. PWM signals are generated by Arduino and then fed to a power electronic board to drive a DC machine. All type of control signals and plots are observed on MATLAB/Simulink scope using real time HIL methodology.
Shuvra Prokash Biswas; Kamal Hosain; Waliur Rahman. Real-time arduino based simulator enabled hardware-in-the-loop electric DC machine drive system. 2017 IEEE Region 10 Humanitarian Technology Conference (R10-HTC) 2017, 823 -826.
AMA StyleShuvra Prokash Biswas, Kamal Hosain, Waliur Rahman. Real-time arduino based simulator enabled hardware-in-the-loop electric DC machine drive system. 2017 IEEE Region 10 Humanitarian Technology Conference (R10-HTC). 2017; ():823-826.
Chicago/Turabian StyleShuvra Prokash Biswas; Kamal Hosain; Waliur Rahman. 2017. "Real-time arduino based simulator enabled hardware-in-the-loop electric DC machine drive system." 2017 IEEE Region 10 Humanitarian Technology Conference (R10-HTC) , no. : 823-826.