摘要
理论上分析了发生转子匝间短路,定子侧电流所含的谐波成分。基于MATLAB/Simulink中的S函数,以多回路理论为基础建立了双馈电机的数学模型,对双馈异步电机正常情况和转子发生匝间短路这两种情况下进行了仿真。分析了电力电子器件对转子侧电流谐波的影响,对定子侧线电流进行了傅里叶分析。通过傅里叶分析可以得到判别转子匝间短路的依据,由仿真试验数据分析可以得到与理论分析相一致的结果,说明了基于S函数的多回路模型的仿真试验是可行的。
The analysis of the current harmonic components of the stator side contained under rotor winding inter- turn short-circuit was done. The muhi-loop math model was built for rotor winding of DFIG under normal and inter- turn short-circuit fault conditions. The simulation was carried out, using S-Function in Simulink, and deeply analysis for the results by FFT analysis was done, the influence of power electronic devices was also considered. Base on the analysis the rotor winding inter-turn short-circuit could be easily found. The simulation result accorded with the theoretical analysis, it showed the simulation base on S-Function was reliable.
出处
《电机与控制应用》
北大核心
2015年第8期12-16,23,共6页
Electric machines & control application
基金
河北省自然科学基金资助项目(2014502015)
关键词
双馈异步电机
匝间短路
多回路
S函数
doubly fed induction generator （DFIG）
inter-turn short-circuit
multi-loop
system function
