In this paper, in control theory, sliding mode control, or SMC, is a form of variable structure control (VSC). It is a nonlinear control method that alters the dynamics of a nonlinear system by application of a high-frequency switching control. The s

，建立了UPFC在MATLAB平台上的仿 真模型；利用MATLAB建立了三相环形电力系统，将UPFC模型应用到该系统 中，着重研究了UPFC对电网电能质量的影响；研究了UPFC对电网故障中电 压跌落的补偿作用，以及UPFC对正常系统电压的影响。-failed to translate

optimum file of upfc in matlab file