UPFC非线性解耦控制

Decoupling Nonlinear Control for Unified Power Flow Control(UPFC)

采用开关函数建模法建立了UPFC的数学模型,通过非线性变换提出一种UPFC的非线性解耦控制策略。为了验证UPFC及控制策略的有效性,用数字仿真软件包MATLAB建立仿真平台对UPFC的特性进行了仿真分析。仿真结果表明,提出的控制策略可以快速、准确地响应电力系统的需求,有效实现有功功率和无功功率的解耦控制。

This paper develops a mathematic model for UPFC based on the switching function method.By use of the nonlinear transformation,a nonlinear decoupled feedback control method is introduced.The performance of the proposed control method is evaluated by the digital simulation with the software package Matlab.Simulation results show that UPFC can respond quickly and accurately to the demands of power system.Moreover,with the proposed control,the active and reactive power control can be effectively decoupled.