电机与控制应用2017，Vol.44Issue(9)：16-21,6.
定子匝间短路时双馈异步发电机电磁转矩的研究
Research on Electromagnetic Torque of Doubly-Fed Induction Generators with Stator Winding Inter-Turn Short Circuit
摘要
Abstract
The stator winding inter-turn short circuit fault can cause the air gap magnetic field distortion of doubly-fed induction generators,which leads to the change of electromagnetic torque.The electromagnetic torque the same as electrical parameters can be used as the fault characteristics.The electromagnetic torque change characteristics before and after stator winding inter-turn short circuit fault were analyzed based on the energy method,and the multi-loop mathematical model of doubly-fed induction generators was established to calculate the electromagnetic torque of the normal and different degree of inter-turn short circuit fault.The harmonic variation characteristics of electromagnetic torque before and after the stator winding inter-turn short circuit fault were obtained by the spectrum analysis of the simulation results,which verified the correctness of the theoretical analysis.The correlation characteristics between stator winding inter-turn short circuit fault and electromagnetic torque could be used as the basis for fault diagnosis of doubly fed induction generators.关键词
双馈异步发电机/匝间短路/电磁转矩/多回路/频谱分析Key words
doubly-fed induction generators/inter-turn short circuit/electromagnetic torque/multi-loop/spectrum analysis分类
信息技术与安全科学引用本文复制引用
张艳,马宏忠,付明星,黄春梅,顾苏雯..定子匝间短路时双馈异步发电机电磁转矩的研究[J].电机与控制应用,2017,44(9):16-21,6.基金项目
国家自然科学基金资助项目(51577050) （51577050）
