1. Cascaded Multilevel Rectifiers for Open-End Winding PMSM.
- Author
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Monteiro, Amanda Pereira, Jacobina, Cursino Brandao, Bahia, Filipe Antonio da Costa, de Sousa, Reuben Palmer Rezende, and Marinus, Nustenil Segundo de Moraes Lima
- Subjects
ELECTRIC current rectifiers ,WIND energy conversion systems ,PERMANENT magnets ,WIND power - Abstract
This article proposes three-phase cascaded multilevel rectifiers for wind energy conversion system applications. These configurations operate as machine-side converters and play an essential role in the integration of wind power generation units. The proposed rectifiers are connected to a permanent magnet synchronous machine by an open-end winding arrangement, making the ac–dc conversion of the power delivered with high-power factor operation. Their structures are composed of a combination of a converter based on Vienna rectifiers and one H-bridge per phase with a floating capacitor. Compared with the conventional configurations, the proposed ones provide sinusoidal currents with lower harmonic distortion using, proportionally, a fewer number of controlled switches. Furthermore, they can operate with a lower switch blocking voltage. These features make them attractive options for industrial applications due to their good performance, providing an interesting cost–benefit. The system model, pulsewidth modulation technique, capacitor voltage balancing, and control strategy are detailed. Computer simulations and experimental tests are provided in order to validate their feasibility. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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