电力电子变压器在输电系统中的控制策略研究  

Study on control strategy for power electronic transformer in power system

作　　者：黄贻煜[1] 毛承雄[1] 陆继明[1] 范澍[1] 

机构地区：[1]华中科技大学电气与电子工程学院,湖北武汉430074

出　　处：《继电器》2004年第6期35-39,共5页Relay

基　　金：湖北省自然科学基金 (2 0 0 1ABB0 2 6)

摘　　要：电力电子变压器(PET—PowerElectronicTransformer)是一种新型的电能转换设备,它通过电力电子变换技术实现电力系统中的电压变换和能量传递。研究了PET在电力系统中的控制问题,提出了在单机无穷大系统中与发电机相连的PET的控制策略,并在MATLAB环境中进行了时域仿真研究。仿真结果表明,在系统中出现扰动的条件下,PET能有效的提高系统阻尼,改善系统电压特性,提高了电力系统的稳定性。Power electronic transformer (PET) is a new type power transmission device, which realizes voltage transformation and power delivery through power electronic conversion. In this paper, a new PET control strategy based on single-generator infinite system is presented. Simulations based on MATLAB/Simulink are carried out, and the results show that the proposed controller can improve the system stability effectively under different disturbance. 

关 键 词：电力电子变压器 输电系统 控制策略 电力系统 仿真 

分 类 号：TM41[电气工程—电器]