Predictive Current Control of Distribution Static Condenser (D-STATCON) for Reactive Power Compensation in Flexible AC Transmission System (FACTS)

Abstract

This paper describes the modeling and current control techniques of a distribution static condenser (D-STATCON). The current control is based on the predictive and the space vector PWM scheme. The predictive current controlled PWM D-STATCON can maintain its performance with reactive power compensation and fixed switching frequency. By using the space vector control, low ripple and offset in the current and the voltage as well as fast dynamic responses are achieved with a small DC link capacitance employed.