Modeling and Analysis of a Deflection Type Permanent Magnet Synchronous Wind Generator System

Weichao Dong, Zheng Li, Hexu Sun and Jingxuan Zhang
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Weichao Dong: School of Artificial Intelligence, Hebei University of Technology, Tianjin 300130, China
Zheng Li: School of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
Hexu Sun: School of Artificial Intelligence, Hebei University of Technology, Tianjin 300130, China
Jingxuan Zhang: School of Artificial Intelligence, Hebei University of Technology, Tianjin 300130, China

Energies, 2020, vol. 13, issue 6, 1-22

Abstract: A novel type of multi-degree-of-freedom (multi-DOF) deflecting-type permanent-magnet synchronous wind generator (PMSWG) is constructed to improve the reliability and utilization of wind energy. The basic working principle of the multi-DOF deflecting-type permanent-magnet synchronous generator (PMSG) is introduced, and its structural size is experimentally and theoretically determined. Subsequently, the multi-DOF deflecting-type PMSG was used to operate a complete wind turbine. A prototype and three-dimensional (3D) model of the wind turbine is simulated, allowing one to analyze the aerodynamics of the turbine and power generation performance. The electromagnetic field analysis is performed via analytical methods, followed by a 3D finite element and torque analyses. Furthermore, the wind turbine power generation characteristics curves are obtained through simulation software. Finally, transient analysis of post deflection is demonstrated. The before and after deflection values of the generator voltage, current, flux linkage, and induced voltage are compared and analyzed, relying on simulations and experiments. Additionally, the wind tunnel experiment is used to compare voltage variation with wind direction. The comparison reveals that the wind generator phase voltage remains maximized with wind direction variation. The results confirm that the proposed PMSWG has excellent performance and future research potential.

Keywords: three-dimensional finite element analysis; multi-degree-of-freedom; deflecting-type; permanent-magnet synchronous wind generator; magnetic field; wind power generation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
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