Machine-side Harmonic Suppression Strategy for Direct Driven Five-phase PMSG of Wind Power Generation System
Wind power generation system with five-phase PMSG contains a large amount of third harmonic in the stator phase current of the machine side due to the dead-time effect of the converter and non-sinusoidal air-gap magnetic field. Harmonic suppression strategy is proposed to reduce output harmonics a...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Stefan cel Mare University of Suceava
2024-05-01
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| Series: | Advances in Electrical and Computer Engineering |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.4316/AECE.2024.02009 |
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| Summary: | Wind power generation system with five-phase PMSG contains a large amount of third harmonic in the stator phase current of the machine side
due to the dead-time effect of the converter and non-sinusoidal air-gap magnetic field. Harmonic suppression strategy is proposed to reduce
output harmonics and improve the system's power quality. Firstly, the extended Clark&Park matrix was analyzed and applied to F-PMSG for dq
decoupling control, and a mathematical model of the generator containing the fundamental and third harmonic subspace is obtained. Secondly,
the third harmonic model of the stator current was analyzed. Based on the PI controller, a control strategy for the third harmonic subspace
dual closed-loop control and the introduction of a harmonic compensation module into the feedback loop was designed. The dual closed-loop
PI controller was used to adjust the dq-axis current signals without static error, and the harmonic compensation module was used to offset
the accompanying harmonic voltage. Finally, a direct drive F-PMSG wind power generation system under maximum power point tracking was built
in the Matlab/Simulink environment. The simulation results show that the strategy has good suppression effect on third harmonic generation. |
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| ISSN: | 1582-7445 1844-7600 |