The Experts below are selected from a list of 39 Experts worldwide ranked by ideXlab platform
J E Fletcher - One of the best experts on this subject based on the ideXlab platform.
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Steady-state performance assessment of three- and five-phase permanent magnet Generators connected to a diode bridge rectifier under open-circuit faults
IET Renewable Power Generation, 2010Co-Authors: N.e.a.m. Hassanain, J E FletcherAbstract:Small-scale wind turbines often utilise permanent magnet Generators that supply power via an uncontrolled diode rectifier. In such systems, a custom Generator design is required to optimise the aerodynamic and electromechanical performance; therefore the phase number of the Generator is not restricted. This study assesses and compares the performance of prototype 700 W five-and Three-Phase permanent magnet Generators connected to a diode bridge rectifier and their performance under open-circuit fault conditions. The simulation and experimental results demonstrate that the five-phase system can utilise a smaller DC-link capacitor and develops lower shaft torque ripple compared to the Three-Phase system. The Three-Phase Generator can only tolerate one single-phase open-circuit failure. However, three possible open-circuit phase failure modes are considered in the five-phase machine: a single open-circuit phase and two open-circuit phases, where the two phases can be adjacent or non-adjacent. It is shown that the shaft torque ripple and output power are superior in the five-phase system with both the single-phase failure mode and the non-adjacent phase failure mode compared to the Three-Phase system with a single-phase failure. However, the adjacent phase failure mode is more extreme and generates less output power than the Three-Phase system. Simulation and finite-element analysis results are verified by experiments on the prototype 30-slot, four-pole, double-layer, surface-mounted permanent magnet Generator.
N.e.a.m. Hassanain - One of the best experts on this subject based on the ideXlab platform.
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Steady-state performance assessment of three- and five-phase permanent magnet Generators connected to a diode bridge rectifier under open-circuit faults
IET Renewable Power Generation, 2010Co-Authors: N.e.a.m. Hassanain, J E FletcherAbstract:Small-scale wind turbines often utilise permanent magnet Generators that supply power via an uncontrolled diode rectifier. In such systems, a custom Generator design is required to optimise the aerodynamic and electromechanical performance; therefore the phase number of the Generator is not restricted. This study assesses and compares the performance of prototype 700 W five-and Three-Phase permanent magnet Generators connected to a diode bridge rectifier and their performance under open-circuit fault conditions. The simulation and experimental results demonstrate that the five-phase system can utilise a smaller DC-link capacitor and develops lower shaft torque ripple compared to the Three-Phase system. The Three-Phase Generator can only tolerate one single-phase open-circuit failure. However, three possible open-circuit phase failure modes are considered in the five-phase machine: a single open-circuit phase and two open-circuit phases, where the two phases can be adjacent or non-adjacent. It is shown that the shaft torque ripple and output power are superior in the five-phase system with both the single-phase failure mode and the non-adjacent phase failure mode compared to the Three-Phase system with a single-phase failure. However, the adjacent phase failure mode is more extreme and generates less output power than the Three-Phase system. Simulation and finite-element analysis results are verified by experiments on the prototype 30-slot, four-pole, double-layer, surface-mounted permanent magnet Generator.
Jean Frederic Charpentier - One of the best experts on this subject based on the ideXlab platform.
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performance comparison of three and five phase permanent magnet Generators for marine current turbine applications under open circuit faults
International Conference on Power Engineering Energy and Electrical Drives, 2011Co-Authors: Seifeddine Benelghali, Fatiha Mekri, Mohamed Benbouzid, Jean Frederic CharpentierAbstract:Multiphase Generators seems to be an interesting solution for variable-speed drive applications and particularly attractive for renewable energy generation. In this context, the performance of a five-phase permanent magnet synchronous Generator are evaluated within a marine current turbine and compared to a classical Three-Phase Generator. For both topologies, a robust nonlinear control strategy, namely high-order sliding mode control, is adopted. Hence, the Generators performances are analyzed, during open-circuit faults, and conclusions are derived regarding multiphase Generators key features marine applications.
Seifeddine Benelghali - One of the best experts on this subject based on the ideXlab platform.
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performance comparison of three and five phase permanent magnet Generators for marine current turbine applications under open circuit faults
International Conference on Power Engineering Energy and Electrical Drives, 2011Co-Authors: Seifeddine Benelghali, Fatiha Mekri, Mohamed Benbouzid, Jean Frederic CharpentierAbstract:Multiphase Generators seems to be an interesting solution for variable-speed drive applications and particularly attractive for renewable energy generation. In this context, the performance of a five-phase permanent magnet synchronous Generator are evaluated within a marine current turbine and compared to a classical Three-Phase Generator. For both topologies, a robust nonlinear control strategy, namely high-order sliding mode control, is adopted. Hence, the Generators performances are analyzed, during open-circuit faults, and conclusions are derived regarding multiphase Generators key features marine applications.
Mohamed Benbouzid - One of the best experts on this subject based on the ideXlab platform.
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performance comparison of three and five phase permanent magnet Generators for marine current turbine applications under open circuit faults
International Conference on Power Engineering Energy and Electrical Drives, 2011Co-Authors: Seifeddine Benelghali, Fatiha Mekri, Mohamed Benbouzid, Jean Frederic CharpentierAbstract:Multiphase Generators seems to be an interesting solution for variable-speed drive applications and particularly attractive for renewable energy generation. In this context, the performance of a five-phase permanent magnet synchronous Generator are evaluated within a marine current turbine and compared to a classical Three-Phase Generator. For both topologies, a robust nonlinear control strategy, namely high-order sliding mode control, is adopted. Hence, the Generators performances are analyzed, during open-circuit faults, and conclusions are derived regarding multiphase Generators key features marine applications.