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Three-phase three-level unidirectional rectifiers are among the most adopted topologies for general active rectification, achieving an excellent compromise between cost, complexity and overall performance. The unidirectional nature of these rectifiers negatively affects their operation, e.g., distorting the input currents around the zero-crossings, limiting the maximum converter-side displacement power factor, reducing the split DC-link mid-point current capability and limiting the converter ability to compensate the low-frequency DC-link mid-point voltage oscillation. In particular, the rectifier operation under non-unity power factor and/or under constant zero-sequence voltage injection (i.e., when unbalanced split DC-link loading occurs) typically yields large and uncontrolled input current distortion, effectively limiting the acceptable operating region of the converter. Although high bandwidth current control loops and enhanced phase current sampling strategies may improve the rectifier input current distortion, especially at light load, these approaches lose effectiveness when significant phase-shift between voltage and current is required and/or a constant zero-sequence voltage must be injected. Therefore, this paper proposes a complete analysis and performance assessment of three-level unidirectional rectifiers under non-unity power factor operation and unbalanced split DC-link loading. First, the theoretical operating limits of the converter in terms of zero-sequence voltage, modulation index, power factor angle, maximum DC-link mid-point current and minimum DC-link mid-point charge ripple are derived. Leveraging the derived zero-sequence voltage limits, a unified carrier-based pulse-width modulation (PWM) approach enabling the undistorted operation of the rectifier in all feasible operating conditions is thus proposed. Moreover, novel analytical expressions defining the maximum rectifier mid-point current capability and the minimum peak-to-peak DC-link mid-point charge ripple as functions of both modulation index and power factor angle are derived, the latter enabling a straightforward sizing of the split DC-link capacitors. The theoretical analysis is verified on a 30
Davide Cittanti; Matteo Gregorio; Eugenio Bossotto; Fabio Mandrile; Radu Bojoi. Three-Level Unidirectional Rectifiers under Non-Unity Power Factor Operation and Unbalanced Split DC-Link Loading: Analytical and Experimental Assessment. Energies 2021, 14, 5280 .
AMA StyleDavide Cittanti, Matteo Gregorio, Eugenio Bossotto, Fabio Mandrile, Radu Bojoi. Three-Level Unidirectional Rectifiers under Non-Unity Power Factor Operation and Unbalanced Split DC-Link Loading: Analytical and Experimental Assessment. Energies. 2021; 14 (17):5280.
Chicago/Turabian StyleDavide Cittanti; Matteo Gregorio; Eugenio Bossotto; Fabio Mandrile; Radu Bojoi. 2021. "Three-Level Unidirectional Rectifiers under Non-Unity Power Factor Operation and Unbalanced Split DC-Link Loading: Analytical and Experimental Assessment." Energies 14, no. 17: 5280.
The rapid development of electric vehicle ultra-fast battery chargers is increasingly demanding higher efficiency and power density. In particular, a proper control of the grid-connected active front–end can ensure minimum passive component size (i.e., limiting design oversizing) and reduce the overall converter losses. Moreover, fast control dynamics and strong disturbance rejection capability are often required by the subsequent DC/DC stage, which may act as a fast-varying and/or unbalanced load. Therefore, this paper proposes the design, tuning and implementation of a complete digital multi-loop control strategy for a three-level unidirectional T-type rectifier, intended for EV ultra-fast battery charging. First, an overview of the operational basics of three-level rectifiers is presented and the state-space model of the considered system is derived. A detailed analysis of the mid-point current generation process is also provided, as this aspect is widely overlooked in the literature. In particular, the converter operation under unbalanced split DC-link loads is analyzed and the converter mid-point current limits are analytically identified. Four controllers (i.e., dq-currents, DC-link voltage and DC-link mid-point voltage balancing loops) are designed and their tuning is described step-by-step, taking into account the delays and the discretization introduced by the digital control implementation. Finally, the proposed multi-loop controller design procedure is validated on a 30 kW, 20 kHz T-type rectifier prototype. The control strategy is implemented on a single general purpose microcontroller unit and the performances of all control loops are successfully verified experimentally, simultaneously achieving low input current zero-crossing distortion, high step response and disturbance rejection dynamics, and stable steady-state operation under unbalanced split DC-link loading.
Davide Cittanti; Matteo Gregorio; Eugenio Bossotto; Fabio Mandrile; Radu Bojoi. Full Digital Control and Multi-Loop Tuning of a Three-Level T-Type Rectifier for Electric Vehicle Ultra-Fast Battery Chargers. Electronics 2021, 10, 1453 .
AMA StyleDavide Cittanti, Matteo Gregorio, Eugenio Bossotto, Fabio Mandrile, Radu Bojoi. Full Digital Control and Multi-Loop Tuning of a Three-Level T-Type Rectifier for Electric Vehicle Ultra-Fast Battery Chargers. Electronics. 2021; 10 (12):1453.
Chicago/Turabian StyleDavide Cittanti; Matteo Gregorio; Eugenio Bossotto; Fabio Mandrile; Radu Bojoi. 2021. "Full Digital Control and Multi-Loop Tuning of a Three-Level T-Type Rectifier for Electric Vehicle Ultra-Fast Battery Chargers." Electronics 10, no. 12: 1453.
State-of-the-art ultra-fast battery chargers for electric vehicles simultaneously require high efficiency and high power density, leading to a challenging power converter design. In particular, the grid-side filter, which ensures sinusoidal current absorption with low pulse-width modulation (PWM) harmonic content, can be a major contributor to the overall converter size and losses. Therefore, this paper proposes a complete analysis, design and optimization procedure of a three-phase LCL filter for a modular DC fast charger. First, an overview of the basic LCL filter modeling is provided and the most significant system transfer functions are identified. Then, the optimal ratio between grid-side and converter-side inductance is discussed, aiming for the maximum filtering performance. A novel design methodology, based on a graphical representation of the filter design space, is thus proposed. Specifically, several constraints on the LCL filtering elements are enforced, such that all feasible design parameter combinations are identified. Therefore, since in low-voltage high-power applications the inductive components typically dominate the overall filter volume, loss and cost, the viable LCL filter design that minimizes the total required inductance is selected. The proposed design procedure is applied to a 30 kW, 20 kHz 3-level unidirectional rectifier, employed in a modular DC fast charger. The performance of the selected optimal design, featuring equal grid-side and converter-side 175 μ μ H inductors and 15 μ μ F capacitors, is verified experimentally on an active front-end prototype, both in terms of harmonic attenuation capability and current control dynamics. A current total harmonic distortion (THD) of 1.2% is achieved at full load and all generated current harmonics comply with the applicable harmonic standard. Moreover, separate tests are performed with different values of grid inner impedance, verifying the converter control stability in various operating conditions and supporting the general validity of the proposed design methodology.
Davide Cittanti; Fabio Mandrile; Matteo Gregorio; Radu Bojoi. Design Space Optimization of a Three-Phase LCL Filter for Electric Vehicle Ultra-Fast Battery Charging. Energies 2021, 14, 1303 .
AMA StyleDavide Cittanti, Fabio Mandrile, Matteo Gregorio, Radu Bojoi. Design Space Optimization of a Three-Phase LCL Filter for Electric Vehicle Ultra-Fast Battery Charging. Energies. 2021; 14 (5):1303.
Chicago/Turabian StyleDavide Cittanti; Fabio Mandrile; Matteo Gregorio; Radu Bojoi. 2021. "Design Space Optimization of a Three-Phase LCL Filter for Electric Vehicle Ultra-Fast Battery Charging." Energies 14, no. 5: 1303.
As a consequence of the exponential growth of the electric vehicle (EV) market, DC fast-charging infrastructure is being rapidly deployed all around the world. Ultra-fast charging (UFC) stations are starting to pose serious challenges to the electric power system operation, mostly due to their high peak power demand and unregulated discontinuous operation. To address these issues, local energy storage can be installed, ensuring a smoother grid power absorption profile and allowing to provide grid-supporting features. In this work, a control solution for the grid-side AC/DC converter of next-generation EV UFC stations is proposed. A virtual synchronous compensator (VSC) control algorithm is implemented, in order to lessen the impact of the charging station on the utility and to provide the full spectrum of grid ancillary services (i.e., frequency regulation, reactive power compensation, harmonic reduction, short circuit current generation, etc.). The proposed control strategy is verified experimentally on a downscaled 15 kVA three-phase inverter, emulating the grid front-end of the charging station.
Fabio Mandrile; Davide Cittanti; Vincenzo Mallemaci; Radu Bojoi. Electric Vehicle Ultra-Fast Battery Chargers: A Boost for Power System Stability? World Electric Vehicle Journal 2021, 12, 16 .
AMA StyleFabio Mandrile, Davide Cittanti, Vincenzo Mallemaci, Radu Bojoi. Electric Vehicle Ultra-Fast Battery Chargers: A Boost for Power System Stability? World Electric Vehicle Journal. 2021; 12 (1):16.
Chicago/Turabian StyleFabio Mandrile; Davide Cittanti; Vincenzo Mallemaci; Radu Bojoi. 2021. "Electric Vehicle Ultra-Fast Battery Chargers: A Boost for Power System Stability?" World Electric Vehicle Journal 12, no. 1: 16.
This paper deals with the design, tuning and implementation of a digital controller for an all-Si electric vehicle (EV) on-board battery charger operated in discontinuous conduction mode (DCM). This charger consists of two cascaded conversion stages: a front-end power factor corrector (PFC) with two interleaved legs and an isolated phase-shifted full bridge DC/DC converter. Both stages operate in DCM over the complete battery charging power range, allowing lower inductance values for both the PFC and the DC/DC filtering elements. Moreover, DCM operation ensures a large reduction of the reverse-recovery losses in the power diodes, enabling the adoption of relatively cheap Si devices. The main goal of the work is to address the well-known DCM control challenges, leveraging a novel control strategy for both converter stages. This control scheme counteracts the DCM system non-linearities with a proper feed-forward contribution and an open-loop gain adjustment, ensuring consistent dynamical performance over the complete operating range. The designed controllers are tuned analytically, taking into account the delay components related to the digital implementation. Finally, the proposed control strategy is implemented on a single general purpose microcontroller unit (MCU) and its performance is experimentally validated on a 3.3kW battery charger prototype.
Davide Cittanti; Matteo Gregorio; Fabio Mandrile; Radu Bojoi. Full Digital Control of an All-Si On-Board Charger Operating in Discontinuous Conduction Mode. Electronics 2021, 10, 203 .
AMA StyleDavide Cittanti, Matteo Gregorio, Fabio Mandrile, Radu Bojoi. Full Digital Control of an All-Si On-Board Charger Operating in Discontinuous Conduction Mode. Electronics. 2021; 10 (2):203.
Chicago/Turabian StyleDavide Cittanti; Matteo Gregorio; Fabio Mandrile; Radu Bojoi. 2021. "Full Digital Control of an All-Si On-Board Charger Operating in Discontinuous Conduction Mode." Electronics 10, no. 2: 203.
This paper proposes the enhancement of the control of a grid-connected inverter by a Simplified Virtual Synchronous Compensator (S-VSC) model working in parallel with the traditional inverter current control loops. The goal of the integration of this model into the inverter control scheme is to provide grid services, such as virtual inertia behavior, current harmonic compensation, as well as reactive grid support during faults. The S-VSC is only in charge of providing the aforementioned services, working therefore always at a low power level. On the other hand, the main power references are sent directly to the inverter control loops. This way, a more stable and damped operation of the inverter is obtained. The proposed structure has been implemented on a 15 kVA grid-connected inverter for experimental validation.
Fabio Mandrile; Enrico Carpaneto; Radu Bojoi. Grid-Feeding Inverter With Simplified Virtual Synchronous Compensator Providing Grid Services and Grid Support. IEEE Transactions on Industry Applications 2020, 57, 559 -569.
AMA StyleFabio Mandrile, Enrico Carpaneto, Radu Bojoi. Grid-Feeding Inverter With Simplified Virtual Synchronous Compensator Providing Grid Services and Grid Support. IEEE Transactions on Industry Applications. 2020; 57 (1):559-569.
Chicago/Turabian StyleFabio Mandrile; Enrico Carpaneto; Radu Bojoi. 2020. "Grid-Feeding Inverter With Simplified Virtual Synchronous Compensator Providing Grid Services and Grid Support." IEEE Transactions on Industry Applications 57, no. 1: 559-569.
In modern power electronics-based power systems, accurate modeling is necessary in order to analyze stability and the interaction between the different elements, which are connected to it. State space modeling seems a valid approach to study the modes of a certain system and their correlation with its states. Unfortunately, this approach may require complicated calculations and it is difficult to model advanced or emerging control techniques for grid-tied converters, such as cascaded controllers (e.g., voltage and current) and virtual synchronous generators (VSGs). Moreover, this approach does not allow an easy reconfiguration of the modeled system by adding, removing of modifying certain elements. To solve such problems, this paper presents a step-by-step approach to the converter modeling based on the Component Connection Method (CCM). The CCM is explained in detail and a practical example is given, by modeling one exemplary VSG model available in the literature. The obtained model is finally validated experimentally to demonstrate the practical accuracy of such approach.
Fabio Mandrile; Salvatore Musumeci; Enrico Carpaneto; Radu Bojoi; Tomislav Dragicevic; Frede Blaabjerg. State-Space Modeling Techniques of Emerging Grid-Connected Converters. Energies 2020, 13, 4824 .
AMA StyleFabio Mandrile, Salvatore Musumeci, Enrico Carpaneto, Radu Bojoi, Tomislav Dragicevic, Frede Blaabjerg. State-Space Modeling Techniques of Emerging Grid-Connected Converters. Energies. 2020; 13 (18):4824.
Chicago/Turabian StyleFabio Mandrile; Salvatore Musumeci; Enrico Carpaneto; Radu Bojoi; Tomislav Dragicevic; Frede Blaabjerg. 2020. "State-Space Modeling Techniques of Emerging Grid-Connected Converters." Energies 13, no. 18: 4824.
The recent advancements of power electronics are encouraging the development of the multiphase drives in both transport electrification and energy production applications. Among the multiphase solutions, the multi-three-phase drives are gaining impressive attention from the industry since they can be configured as multiple three-phase units operating in parallel. In this way, the three-phase technologies can be used, leading to a significant reduction in the costs and design time. Although the multi-three-phase drives possess natural modularity in terms of both machine winding and power converter, few control solutions able to implement a modular regulation of the torque are available in the literature. Therefore, this paper proposes a control scheme implementing an independent regulation of the stator flux amplitude and torque contribution belonging to each winding set of a multi-three-phase induction machine. The proposed control solution can manage the voltage and current constraints introduced by each inverter unit. Besides, torque-sharing strategies among the three-phase sets of the machine can be implemented. Experimental results are provided for a modular power converter feeding a twelve-phase induction machine with a quadruple-three-phase configuration, thus demonstrating the effectiveness of the proposed solution.
Sandro Rubino; Iustin Radu Bojoi; Fabio Mandrile; Eric Armando. Modular Stator Flux and Torque Control of Multi-Three-Phase Induction Motor Drives. IEEE Transactions on Industry Applications 2020, 56, 6507 -6525.
AMA StyleSandro Rubino, Iustin Radu Bojoi, Fabio Mandrile, Eric Armando. Modular Stator Flux and Torque Control of Multi-Three-Phase Induction Motor Drives. IEEE Transactions on Industry Applications. 2020; 56 (6):6507-6525.
Chicago/Turabian StyleSandro Rubino; Iustin Radu Bojoi; Fabio Mandrile; Eric Armando. 2020. "Modular Stator Flux and Torque Control of Multi-Three-Phase Induction Motor Drives." IEEE Transactions on Industry Applications 56, no. 6: 6507-6525.
In this article, a three-leg interleaved boost Power Factor Corrector (IBPFC) converter for energy-efficient LED lighting systems connected to the main grid was discussed. This IBPFC circuit presented features 60 kHz of commutation frequency and up to 3 kW of power rating. The controlled rectifier front-end boost PFC supplied a DC/DC converter to drive power LEDs suitable for street lighting or a lighting system for a stadium, etc. The IBPFC operated in continuous current mode (CCM). The ripple impact of the IBPFC converter was analyzed and a novel methodology of inductance design was presented. In the proposed design approach, the derivative calculation of the current ripple peak compared with the derivative of the input current was used to define a critical inductance value to ensure the CCM condition. Experimental validation was provided on a 3kW prototype.
Salvatore Musumeci; Radu Bojoi; Eric Armando; Stefano Borlo; Fabio Mandrile. Three-Legs Interleaved Boost Power Factor Corrector for High-Power LED Lighting Application. Energies 2020, 13, 1728 .
AMA StyleSalvatore Musumeci, Radu Bojoi, Eric Armando, Stefano Borlo, Fabio Mandrile. Three-Legs Interleaved Boost Power Factor Corrector for High-Power LED Lighting Application. Energies. 2020; 13 (7):1728.
Chicago/Turabian StyleSalvatore Musumeci; Radu Bojoi; Eric Armando; Stefano Borlo; Fabio Mandrile. 2020. "Three-Legs Interleaved Boost Power Factor Corrector for High-Power LED Lighting Application." Energies 13, no. 7: 1728.
Power devices have an increasing relevance in many applications, including some safety-critical ones. In the latter case, the effectiveness of the test performed at the end of the manufacturing, when the device is already mounted on the final board, is crucial. Unfortunately, assessing such effectiveness is not trivial, since it requires defining a metric that could be measured in an objective manner. Following a trend that is common to the whole world of analog components, in a previous paper we proposed a fault model based on the availability of the electrical model of the power device. Using this fault model, the test engineer can assess and possibly improve the quality of the developed test solution, and optimize the overall test plan so that a given fault coverage is achieved with minimum cost. The proposed fault requires the availability of the electrical model of the power device. In this paper we adopt this approach on a case of study using a power device, and analyze the effectiveness provided by a set of functional tests and an in-circuit one. Results are reported and discussed, showing the advantages and limitations of the approach.
Davide Piumatti; Stefano Borlo; Fabio Mandrile; Matteo Sonza Reorda; Radu Bojoi. Assessing the Effectiveness of the Test of Power Devices at the Board Level. 2019 XXXIV Conference on Design of Circuits and Integrated Systems (DCIS) 2019, 1 -6.
AMA StyleDavide Piumatti, Stefano Borlo, Fabio Mandrile, Matteo Sonza Reorda, Radu Bojoi. Assessing the Effectiveness of the Test of Power Devices at the Board Level. 2019 XXXIV Conference on Design of Circuits and Integrated Systems (DCIS). 2019; ():1-6.
Chicago/Turabian StyleDavide Piumatti; Stefano Borlo; Fabio Mandrile; Matteo Sonza Reorda; Radu Bojoi. 2019. "Assessing the Effectiveness of the Test of Power Devices at the Board Level." 2019 XXXIV Conference on Design of Circuits and Integrated Systems (DCIS) , no. : 1-6.
Matteo Gregorio; Fabio Mandrile; Radu Bojoi; Alessio Gillone; Claudio Damilano. Fully MCU-Based DCM Control of On-Board Charger. 2019 20th International Symposium on Power Electronics (Ee) 2019, 1 .
AMA StyleMatteo Gregorio, Fabio Mandrile, Radu Bojoi, Alessio Gillone, Claudio Damilano. Fully MCU-Based DCM Control of On-Board Charger. 2019 20th International Symposium on Power Electronics (Ee). 2019; ():1.
Chicago/Turabian StyleMatteo Gregorio; Fabio Mandrile; Radu Bojoi; Alessio Gillone; Claudio Damilano. 2019. "Fully MCU-Based DCM Control of On-Board Charger." 2019 20th International Symposium on Power Electronics (Ee) , no. : 1.
This paper proposes a grid-connected inverter whose control is enhanced with a Simplified Virtual Synchronous Compensator (S-VSC) working in parallel with the traditional inverter current control loops. The goal of the integration of this model into the inverter control scheme is to provide grid services, such as virtual inertia behavior, current harmonic compensation, as well as reactive grid support during faults. The S-VSC is only in charge of providing the aforementioned services, working therefore always at a low power level. On the other hand, the main power references are sent directly to the inverter control loops. This way, a more stable and damped operation of the inverter is obtained. The proposed structure has been implemented on a 15 kVA grid-connected inverter for experimental validation.
Fabio Mandrile; Enrico Carpaneto; Radu Bojoi. Grid-Tied Inverter with Simplified Virtual Synchronous Compensator for Grid Services and Grid Support. 2019 IEEE Energy Conversion Congress and Exposition (ECCE) 2019, 4317 -4323.
AMA StyleFabio Mandrile, Enrico Carpaneto, Radu Bojoi. Grid-Tied Inverter with Simplified Virtual Synchronous Compensator for Grid Services and Grid Support. 2019 IEEE Energy Conversion Congress and Exposition (ECCE). 2019; ():4317-4323.
Chicago/Turabian StyleFabio Mandrile; Enrico Carpaneto; Radu Bojoi. 2019. "Grid-Tied Inverter with Simplified Virtual Synchronous Compensator for Grid Services and Grid Support." 2019 IEEE Energy Conversion Congress and Exposition (ECCE) , no. : 4317-4323.
The aim of this paper is to provide guidelines for a feasibility study on the most suitable current control of a high efficiency resonant LLC converter used in battery chargers for electric vehicles. This paper analyzes and compares three current control methods of a full bridge LLC resonant converter. After a brief analysis of the operation and of the requirements of the current control in a resonant LLC converter, three generally used current control methods are introduced. The converter analysis is based on the first harmonic approximation in order to simplify the system model. The dynamic performances are evaluated by several simulations based on an actual application. The full bridge LLC resonant converter is designed for an actual 3.3 kW on-board battery charger for electric vehicles. Finally, advantages and drawbacks of the different current control methods are explained to allow a critical evaluation for an accurate LLC resonant converter control design.
M. Gregorio; Fabio Mandrile; S. Musumeci. Comparative Evaluation and Simulation of Current Control Methods of LLC Converters in EV Battery Chargers. 2019 IEEE 5th International forum on Research and Technology for Society and Industry (RTSI) 2019, 188 -193.
AMA StyleM. Gregorio, Fabio Mandrile, S. Musumeci. Comparative Evaluation and Simulation of Current Control Methods of LLC Converters in EV Battery Chargers. 2019 IEEE 5th International forum on Research and Technology for Society and Industry (RTSI). 2019; ():188-193.
Chicago/Turabian StyleM. Gregorio; Fabio Mandrile; S. Musumeci. 2019. "Comparative Evaluation and Simulation of Current Control Methods of LLC Converters in EV Battery Chargers." 2019 IEEE 5th International forum on Research and Technology for Society and Industry (RTSI) , no. : 188-193.
E. Armando; R. Bojoi; A. Fratta; Fabio Mandrile; S. Musumeci; A. Tenconi. H-Bridge Converter as Power Electronics Workbench: An Effective Teaching Case of Learning by Doing. 2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe) 2019, 1 .
AMA StyleE. Armando, R. Bojoi, A. Fratta, Fabio Mandrile, S. Musumeci, A. Tenconi. H-Bridge Converter as Power Electronics Workbench: An Effective Teaching Case of Learning by Doing. 2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe). 2019; ():1.
Chicago/Turabian StyleE. Armando; R. Bojoi; A. Fratta; Fabio Mandrile; S. Musumeci; A. Tenconi. 2019. "H-Bridge Converter as Power Electronics Workbench: An Effective Teaching Case of Learning by Doing." 2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe) , no. : 1.
Thanks to the improvements in power electronics, a higher integration of renewable energy sources into the electric grid using power converters is possible. Virtual Synchronous Generators (VSGs) seem to be a valid control solution for grid-tied inverters, guaranteeing not only virtual inertia features, but also several grid services, such as reactive grid support during faults and current harmonics compensation. This paper deals with the damping of the mechanical part of VSG models using only a damper winding in the q-axis. A comparison is made between two of the most widespread damping methods presented in literature, and the one proposed by the authors, that shows better features. An analytical model for the q-axis damper is presented, and an experimental comparison and validation are carried out on a 15kVA grid-connected inverter.
Fabio Mandrile; Enrico Carpaneto; Radu Bojoi. Virtual Synchronous Generator with Simplified Single-Axis Damper Winding. 2019 IEEE 28th International Symposium on Industrial Electronics (ISIE) 2019, 2123 -2128.
AMA StyleFabio Mandrile, Enrico Carpaneto, Radu Bojoi. Virtual Synchronous Generator with Simplified Single-Axis Damper Winding. 2019 IEEE 28th International Symposium on Industrial Electronics (ISIE). 2019; ():2123-2128.
Chicago/Turabian StyleFabio Mandrile; Enrico Carpaneto; Radu Bojoi. 2019. "Virtual Synchronous Generator with Simplified Single-Axis Damper Winding." 2019 IEEE 28th International Symposium on Industrial Electronics (ISIE) , no. : 2123-2128.
Thanks to the advancements in power electronics, the multiphase solutions are gaining a growing attention from the industry. Due to the higher number of phases, the multiphase machines offer more degrees of freedom with respect to the three-phase counterparts. As example, it is possible to configure the drive topology in a modular way in terms of both electrical machine winding and power converter structure. This special feature has led to the development of the “multiple three-phase solutions” in which the multiphase drive is configured as multiple three-phase units operating in parallel. Nevertheless, the literature does not report control solutions able to exploit properly the drive modularity of multiple three-phase drives. Therefore, an innovative control scheme, implementing a modular torque regulation of multiple three-phase induction motor drives, is proposed in this paper. To show the feasibility of the developed control solution, experimental results are provided for a multi-modular power converter feeding a quadruple three-phase induction machine prototype.
Sandro Rubino; Radu Bojoi; Fabio Mandrile; Eric Armando. Modular Stator Flux and Torque Control of Multiphase Induction Motor Drives. 2019 IEEE International Electric Machines & Drives Conference (IEMDC) 2019, 531 -538.
AMA StyleSandro Rubino, Radu Bojoi, Fabio Mandrile, Eric Armando. Modular Stator Flux and Torque Control of Multiphase Induction Motor Drives. 2019 IEEE International Electric Machines & Drives Conference (IEMDC). 2019; ():531-538.
Chicago/Turabian StyleSandro Rubino; Radu Bojoi; Fabio Mandrile; Eric Armando. 2019. "Modular Stator Flux and Torque Control of Multiphase Induction Motor Drives." 2019 IEEE International Electric Machines & Drives Conference (IEMDC) , no. : 531-538.
In recent years the increase of portable devices has led to the need for supply systems from several energy sources. In some case, it is necessary to manage very low input voltage values (below 1V). The conversion of the energy from these very low voltage sources requires special design because topologies capable of raising the voltage in an appropriate mode with high efficiency are necessary. In these kinds of electronic consumer applications, the increase of the autonomy is the one of the main objectives to reach. The aim of this paper is the investigation of a synchronous boost converter with coupled inductors to adapt the voltage level from very low voltage sources. High performance low voltage MOSFETs are applied with an optimized figure of merit. Simulation and experimental results are carried out to validate the effectiveness of the proposed circuit solution.
Salvatore Musumeci; Fabio Mandrile; Andrea Novello; Angelo Raciti; Giovanni Susinni. Very Low Input Voltage Synchronous Coupled Inductor Boost Converter with High Performance Power MOSFETs. 2018 IEEE International Telecommunications Energy Conference (INTELEC) 2018, 1 -6.
AMA StyleSalvatore Musumeci, Fabio Mandrile, Andrea Novello, Angelo Raciti, Giovanni Susinni. Very Low Input Voltage Synchronous Coupled Inductor Boost Converter with High Performance Power MOSFETs. 2018 IEEE International Telecommunications Energy Conference (INTELEC). 2018; ():1-6.
Chicago/Turabian StyleSalvatore Musumeci; Fabio Mandrile; Andrea Novello; Angelo Raciti; Giovanni Susinni. 2018. "Very Low Input Voltage Synchronous Coupled Inductor Boost Converter with High Performance Power MOSFETs." 2018 IEEE International Telecommunications Energy Conference (INTELEC) , no. : 1-6.