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| 摘要: |
| 同步电机定子绕组发生内部电气故障时,气隙磁场中存在很强的空间谐波分量。采用多回路理论进行仿真分析,充分考虑了谐波分量的影响。准确的电感参数计算是多回路分析的基础,采用磁路的气隙磁导分析法计算电机故障后各电感参数,分析了谐波的计入次数对电感参数计算的影响,进一步分析了谐波对定子绕阻内部故障仿真结果的影响,并提出了工程中合理的谐波计算次数,既能保证计算精度,又可以减少计算工作量,从而具有较快的计算速度。通过对仿真波形的分析,得出结论:在进行同步电机定子绕组内部故障的仿真计算中,必须充分计及谐波的影响。 |
| 关键词: 同步电机,定子绕组,内部故障,谐波分析 |
| DOI： |
| 分类号:TM307 .1 |
| 基金项目:上海市高校优秀青年教师后备人选科研项目 |
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| Harmonic analysis of synchronous generator stator winding internal fault simulation based on multi-loop theory |
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WEI Shurong MA Hongzhong
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| Abstract: |
| When internal fault occurs in the stator windings of synchronous generator,there are strong harmonics in the air gap. The fault is simulated and analyzed based on MLT(Multi - Loop Theory),with the impact of harmonics fully considered. Accurate inductance parameters,which are the basis of MLT,are calculated using air gap conductance method. The impact of harmonic orders on the inductance parameter calculation is discussed and the impact of harmonics on the results of stator winding fault simulation is analyzed. The reasonable harmonic order is given to ensure both the calculation accuracy and speed. The conclusion based on the analysis of simulation waveform is that, the impact of gap harmonics on the stator winding fault calculation in synchronous generator simulation must be fully considered. |
| Key words: synchronous generator,stator winding,internal fault,harmonic analysis |
