Research on a 4-phase wound-field doubly salient generator with compensation capacitors

A 4-phase wound-field doubly salient generator is researched in this paper. The no-load situation is analyzed ideally and simulated by finite element method. The average inductance of the phase winding, which reaches over 50mH, causes low power factor and decreases the output power. To improve the output power, the capacitors are introduced to compensate the inductive current. For the no-load situation, the capacitors make the phase current has same phase as the flux, and then increase the electromotive force. Compared to the topology with no compensation, the improvement of the output power with the compensation capacitors has been verified by the experiments.

[1]  Y. Fan,et al.  Development of a New Brushless Doubly Fed Doubly Salient Machine for Wind Power Generation , 2006, IEEE Transactions on Magnetics.

[2]  K. T. Chau,et al.  Control and operation of a new 8/6-pole doubly salient permanent-magnet motor drive , 2003 .

[3]  Yu Wang,et al.  Analysis of Electromagnetic Performance and Control Schemes of Electrical Excitation Flux-Switching Machine for DC Power Systems , 2012, IEEE Transactions on Energy Conversion.

[4]  Z. Zhu,et al.  A Novel Axial Field Flux-Switching Permanent Magnet Wind Power Generator , 2011, IEEE Transactions on Magnetics.

[5]  Ming Cheng,et al.  Design and analysis of a new doubly salient permanent magnet motor , 2001 .

[6]  Zhe Chen,et al.  Comparison of Flux Regulation Ability of the Hybrid Excitation Doubly Salient Machines , 2014, IEEE Transactions on Industrial Electronics.

[7]  Thomas A. Lipo,et al.  Assessment of power generation capability of doubly-salient PM generator , 1999, IEEE International Electric Machines and Drives Conference. IEMDC'99. Proceedings (Cat. No.99EX272).

[8]  Zhe Chen,et al.  A Fault-Tolerant Parallel Structure of Single-Phase Full-Bridge Rectifiers for a Wound-Field Doubly Salient Generator , 2013, IEEE Transactions on Industrial Electronics.

[9]  Kai Shi,et al.  An Excitation-Capacitor-Optimized Dual Stator-Winding Induction Generator With the Static Excitation Controller for Wind Power Application , 2011, IEEE Transactions on Energy Conversion.

[10]  Ying Fan,et al.  A new three-phase doubly salient permanent magnet machine for wind power generation , 2006, IEEE Transactions on Industry Applications.

[11]  Z. Chen,et al.  Flux regulation ability of a hybrid excitation doubly salient machine , 2011 .

[12]  Dong Wang,et al.  Optimal design of a self-excited capacitor in a dual-stator winding induction generator , 2009 .

[13]  Huizhen Wang,et al.  A Doubly Salient Starter/Generator With Two-Section Twisted-Rotor Structure for Potential Future Aerospace Application , 2012, IEEE Transactions on Industrial Electronics.

[14]  Wei Hua,et al.  Overview of Stator-Permanent Magnet Brushless Machines , 2011, IEEE Transactions on Industrial Electronics.

[15]  Congxiao Wang,et al.  Characterization of three phase flux reversal machine as an automotive generator , 2001 .

[16]  K.T. Chau,et al.  A novel three-phase doubly salient permanent magnet machine for wind power generation , 2004, Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting..