Half Bridge Compensator Design for THD Reduction and DC Link Voltage Stabilisation of Electric Traction

Railway power conditioners have played a vital role in the railway industry by compensating negative sequence current (NSC), reactive power and current harmonics. Also, various power conditioners have been framed to ease its implementation and improve the power quality of the traction system. To nullify the power quality problem in the railway power supply network, a railway static power conditioner (RPC) based on a half-bridge converter is proposed. Compared with conventional Half-Bridge-Converter-Based Railway Static Power Conditioners, the proposed conditioner could reduce the rating and cost of power quality conditioner. Cooperative control strategies have been developed to achieve accurate tracking of reference signals.