统一潮流控制器的电网潮流调节特性分析

Analysis of the Trend of Unified Power Flow Controller in Power Flow Regulation Characteristics

介绍了统一潮流控制器(UPFC)的系统结构和工作原理,分析了其并联侧和串联侧的工作方式,并依此建立了统一潮流控制的稳态数学模型.在Matlab/Simulink的环境下建立了三相环形电力系统,将UPFC模型应用到该系统中,对UPFC的电网潮流调节特性进行了仿真分析.仿真结果表明,采用的UPFC数学模型及其控制策略是正确的,能实现UPFC的各种基本控制功能,并能快速正确地响应系统要求.

The Unified Power Flow Controller（UPFC） system structure and working principle are introduced. The shunt and series sides of UPFC is analyzed on the way of working, and then the steady-state mathematical model of UPFC is estallished. In Matlab/Simulink environment, a three- phase loop power system is established. The UPFC model is applied to the system of UPFC for power flow regulation characteristics of the network simulation analysis. Simulation resuhs show that the mathematical model of the unity flow control and control strategy derived is correct. It can achieve a variety of UPFC basic control functions, and respond quickly and correctly to system requirements.