2种风电机组对电网三相短路电流的影响  

Probe into the Influence of Two Types of Wind Turbine on Three-phase Symmetrical Short-circuit Current

作　　者：时芝勇[1] 周剑[2] 张薇[2] 海晓涛[2] 

机构地区：[1]北京电力公司,北京102100 [2]汉中供电局,陕西汉中723000

出　　处：《陕西电力》2010年第10期61-64,共4页Shanxi Electric Power

摘　　要：风电场接入电网后,对电网短路容量水平的影响是需要重点考虑的问题。由于风电机组与传统的同步电机相比有很大的不同,对风电场普遍采用的2种风电机组,即基于普通感应电机的固定转速风电机组与基于双馈电机的变速风电机组的模型进行介绍,并详细介绍了双馈电机的恒功率因数控制模式。当这2种风机分别接入系统后,对系统发生的三相对称短路故障进行了模拟仿真,仿真结果表明当发生三相对称短路故障时,双馈电机机组对故障的调整能力要优于普通感应电机机组。The impact of short-circuit capacity on power grid is an important issue to consider after wind power integration.Because of the difference between wind turbine and traditional synchronous turbine,this paper introduces induction motor based constantspeed wind turbine and doubly-fed generator based variable-speed wind turbine,particularly introduces the constant power factor control mode about the doubly-fed generator.This paper also simulates the fault about the three-phase symmetrical short-circuit under wind power integration circumstance,the results show that the adjustment capacity of the doubly-fed generator is superior to that of the induction motor.

关 键 词：风电 短路容量 感应电机 双馈电机 恒功率因数 

分 类 号：TM614[电气工程—电力系统及自动化]