含双馈异步风力发电机组的配电网电压暂降研究  

Probe into Voltage Sag in Distribution Network with Doubly-fed Induction Generator System

作　　者：付学谦[1] 陈皓勇[1] 王江[1] 俞悦[2] 

机构地区：[1]华南理工大学电力学院,广东广州510640 [2]海南电网公司,海南海口570203

出　　处：《陕西电力》2014年第1期55-59,共5页Shanxi Electric Power

基　　金：国家高技术研究发展计划(863计划)资助项目(2012AA050201)

摘　　要：分布式发电快速发展,并为一些电力用户供电。与传统集中式大电网不同,分布武发电在用户侧或在地方电网直接向当地配电网供电。对含有分布式电源的配电网进行了研究,通过临界距离法计算了电压暂降幅值。在Matlab环境下对短路故障造成的配电网电压暂降进行了仿真,结果表明不同控制模式下的双馈异步风力发电机组不能有效抵制电压暂降,采用动态电压恢复器可以快速有效地裣电压暂降。In recent years,more and more electricity is supplied by distributed-generation （DG）.In contrast to large generating units,DG produces power on a customer＇s site and supplies power directly to the local distribution network.Voltage sag in distribution network with doubly-fed induction generator is studied by the critical distance method,and the voltage amplitude can be calculated.In the Matlab environment,a short-circuit fault in the distribution network which caused the voltage sag problems is simulated.The results show that the ability of voltage sag suppression by the doubly-fed induction generator under different control modes is poor,and the DVR can compensate the voltage sag instantly and effectively.

关 键 词：分布式发电 双馈感应电机 动态电压恢复器 电压暂降 

分 类 号：TM614[电气工程—电力系统及自动化]