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http://dx.doi.org/10.6113/JPE.2014.14.1.92

Eliminating the Third Harmonic Effect for Six Phase Permanent Magnet Synchronous Generators in One Phase Open Mode  

Liu, Jian (School of Electronic Engineering and Automation, Harbin Institute of Technology)
Yang, Gui-Jie (School of Electronic Engineering and Automation, Harbin Institute of Technology)
Li, Yong (School of Electronic Engineering and Automation, Harbin Institute of Technology)
Gao, Hong-Wei (School of Electronic Engineering and Automation, Harbin Institute of Technology)
Su, Jian-Yong (School of Electronic Engineering and Automation, Harbin Institute of Technology)
Publication Information
Journal of Power Electronics / v.14, no.1, 2014 , pp. 92-104 More about this Journal
Abstract
To insure stable operation and eliminate twice torque ripple, a topology for a six phase permanent magnet synchronous generator (SP-PMSG) with a neutral point connected together was analyzed in this paper. By adopting an extended transformation matrix, the mathematic model of the space vector control was established. The voltage and torque equations were deduced while considering the third harmonic flux and inductance. In addition, the suppression third harmonic method and the closed loop control strategy were proposed. A comparison analysis indicates that the cooper loss minimum method and the current magnitude minimum method can meet different application requirements. The voltage compensation amount for each of the methods was deduced which also takes into account the third harmonic effect. A simulation and experimental result comparison validates the consistency through theoretical derivation. It can be seen that all of the two control strategies can meet the requirements of post-fault.
Keywords
Current magnitude minimum; Fault tolerant operation; Six phase permanent magnet synchronous generator; Stator cooper loss minimum;
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