兆瓦级可编程电网模拟电源  

Programmable Grid Simulator Power System in MW Power Level

作　　者：马亮 卢远宏[2] 孙琳琳 袁中正 

机构地区：[1]北京京仪绿能电力系统工程有限公司,北京100009 [2]北京交通大学电气工程学院,北京100044

出　　处：《电气工程学报》2015年第7期57-62,共6页Journal of Electrical Engineering

基　　金：国家自然科学基金面上项目(51277086)

摘　　要：为研究和测试分布式发电系统并网故障穿越能力,提出一种可模拟不同电网故障类型的大功率电网故障模拟电源方案。主电路采用双PWM变流器拓扑结构以实现能量的双向流动。软件设计了通用、步阶、低电压穿越和谐波等工作模式,通过简单人机界面的选择便可获得期望的工作模式。采用瞬时电压电流双环加前馈控制结构,可实现对指令电压的快速跟踪。1MW样机实验结果证明了该设计方案的正确性和有效性。For the purpose of researching and testing on the fault ride through capacity of distributed power generation system, a high-power grid simulator is proposed in this paper. This simulator can provide different types of fault simulating voltage. The main circuit adopts double PWM converter topology in order to realize the bidirectional power flow. Different operation modes, such as normal mode, step mode, low voltage ride through （LVRT） mode and harmonic mode etc., are designed in the software. The desired opertaion mode can be chosen by a simple interface. Instantaneous voltage and current double loop with feedforward voltage control strategy can track the reference voltage quickly. Experimental results about the prototype of the I MW grid simulator verify the effectiveness and validity of the design.

关 键 词：电网模拟电源 可编程 低电压穿越 双环控制 

分 类 号：TM464[电气工程—电器]