Development of full digital control system of TCR dynamic reactive power compensation based on Simadyn-D

Based on the Simadyn-D digital control system, the full digital control system of thyristor control reactor (TCR) for dynamic reactive power compensation is developed in the paper. This control system consists of Simadyn-D control system containing the voltage regulating loop (internal loop) and the power factor correction loop (external loop), and the thyristor valve groups. An adaptive control method is proposed for following and regulating quickly the voltage fluctuation and the power factor correction. The anti-nonlinearity control strategy is suggested for compensating the nonlinearity of thyristor devices. Some research results are given.