CAJ | 학술논문

为了提高链式STATCOM的运行性能和可靠性，针对用于高压大容量STATCOM链节中的新型大功率器件IEGT功率模块进行仿真研究。依据生产厂家所给的典型IEGT导通特性曲线，采用线性插值方法，分析了工程中设备实际运行温度的IEGT导通特性；建立了IEGT功能模型。根据实际工程设计参数对带有缓冲电路的IEGT功率模块进行了仿真分析，讨论缓冲电路参数变化的影响。结果表明，功率模块缓冲电路中电容和电感参数变化对IEGT关断电压尖峰影响大，电阻增大尖峰的峰值明显增大，而出现尖峰的时间基本不变，这一结果可以作为STATCON工程设计中器件选用和缓冲参数优化设计的参考。
위료제고련식STATCOM적운행성능화가고성，침대용우고압대용량STATCOM련절중적신형대공솔기건IEGT공솔모괴진행방진연구。의거생산엄가소급적전형IEGT도통특성곡선，채용선성삽치방법，분석료공정중설비실제운행온도적IEGT도통특성；건립료IEGT공능모형。근거실제공정설계삼수대대유완충전로적IEGT공솔모괴진행료방진분석，토론완충전로삼수변화적영향。결과표명，공솔모괴완충전로중전용화전감삼수변화대IEGT관단전압첨봉영향대，전조증대첨봉적봉치명현증대，이출현첨봉적시간기본불변，저일결과가이작위STATCON공정설계중기건선용화완충삼수우화설계적삼고。
The IEGT power module was researched by the way of simulation in order to improve the operation performance and reliability of high-voltage high-capacity chained STATCOM . According to the typical IEGT conduction characteristic curve provided by the manufacturer,the conduction characteristics of IEGT actual temperature in engineering operating was analyzed with the linear interpolation;a functional model of IEGT was established. The simulation analysis of the IEGT power module with the buffer circuit was carried out, and the influence of the parameters of the buffer circuit on the IEGT voltage peak value at the on and off is dis-cussed by the actual engineering design parameters. The results show that the parameters of capacitor and in-ductance of the buffer circuit in the IEGT power module have serious influence on the voltage peak of IEGT. The voltage peak value increases as the increase of resistance,obviously,and its time is constant,which can be used as a reference for the optimization design of the device and buffer parameters in the STATCOM engi-neering design.