一种简易风电用电压跌落发生器的设计及实现  

Design and implementation of a simple VSG for wind power

作　　者：赵阳[1] 白连平[1] 李洋[2] 

机构地区：[1]北京信息科技大学自动化学院,北京100192 [2]中国电力科学研究院,北京100192

出　　处：《北京信息科技大学学报（自然科学版）》2016年第6期90-94,共5页Journal of Beijing Information Science and Technology University

摘　　要：为了测试风力发电系统的低电压穿越能力,需要设计一种电压跌落器(Voltage sag generator,VSG)来模拟电网电压跌落故障。对3类电压跌落器的拓扑结构及工作原理进行了分析,再综合考虑其控制难易、可靠性及成本等因素后,提出了一种变压器形式的新型拓扑结构的电压跌落发生装置。MATLAB仿真结果表明,其能够满足电压跌落时间及跌落幅度可调的要求,而且具有结构简单、可靠性高、成本低的优点,能够用来模拟电网电压跌落故障。In order to test the low voltage ride through capability of wind power generation system, the design of a voltage sag generator is needed to simulate the fault of power grid voltage sag. The topology structure and operational principle of three kinds of voltage sag generators are analyzed. Taking into account factors such as the deferent degree of controlling difficulty, reliability and cost, the voltage sag generator with a new type of topology structure is finally established. It is proved through the simulation that it can meet the requirement of voltage sag time and sag amplitude, and it has the advantages of simple structure, high reliability and low cost and can be used to simulate the power grid voltage drop fault.

关 键 词：风力发电系统 低电压穿越 电压跌落发生器 变压器 

分 类 号：TM315[电气工程—电机]