计及转子电流控制动态的双馈电机电磁暂态过程解析研究  

ANALYTICAL STUDY OF ELECTROMAGNETIC TRANSIENT PROCESS IN DFIG INVOLVING ROTOR CURRENT CONTROL RESPONSE

作　　者：杨淑英[1] 周天保[1] 谢震[1] 张兴[1] 

机构地区：[1]合肥工业大学电气与自动化工程学院,合肥230009

出　　处：《太阳能学报》2017年第8期2136-2144,共9页Acta Energiae Solaris Sinica

摘　　要：为准确将转子电流闭环控制动态包含在DFIG电磁暂态的解析计算中,同时又可使解析计算过程有着明确的物理意义,提出转子侧等效控制分量的概念。基于此,将整个电磁暂态响应分解为虚拟稳态、定子侧故障分量零状态响应以及转子侧控制分量零状态响应,进而获得电磁暂态过程的准确解析解。并据此对暂态特性进行讨论,所得解析结果能较准确地描绘DFIG的电磁暂态过程。最后通过仿真验证解析算法的有效性及解析结果的准确性。In order to contain closed loop control trend of rotor current in analytical calculation of the electromagnetic transient process in doubly fed induction generator （DFIG）, also make analytical calculation process have clear physical meaning, the concept of equivalent control component in rotor side was proposed. According to this concept, the whole electromagnetic transient response was decomposed into virtual steady state, zero- state response of fault component in stator side and zero-state response of control component in rotor side, and then the exact analytical solution of the electromagnetic transient process was obtained. The electromagnetic transient characteristics was discussed based on the results, the obtained analytical solution could describe electromagnetic transient process more exactly. Finally, the validity of analytical algorithm and accuracy of analytical result were verified through simulation.

关 键 词：双馈电机 转子电流控制动态 电磁暂态响应 控制分量 

分 类 号：TM614[电气工程—电力系统及自动化] TM315