论文信息 - Modeling of Series Voltage Source Converter applications with EMTP RV

Modeling of Series Voltage Source Converter applications with EMTP RV

This paper presents the design of a 3-phase Volt- age Source Converter (VSC) that is suitable for series con- nected FACTS controllers. The proposed converter employs PWM techniques for dc/ac conversion, and by regulating the phase angle of the PWM an adjustable voltage is injected in series with the transmission line to regulate the power flow. The reference wave is obtained by using a symmetrical component transformation that is continuously synchronized with system level waveforms. A PI controller is applied to regulate the amount of injected voltage to the transmission line. The 3-phase VSC is analyzed for controller design, and steady state opera- tion of Static Synchronous Series Compensator (SSSC) without any external energy sources. The operation of the series-con- nected VSC with the transmission line is verified by simulation with the program EMTP-RV. The results of simulation demon- strate that the converter is able to limit current with a balanced fault, regulate the transmission line reactance, and has low total harmonic distortion and a fast transient response.

S. Salem

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