A novel power converter suitable for contactless power distribution with capacitive coupling using series-connected switched-mode active negative capacitor

A new concept to realize efficient capacitive-coupling contactless power transfer One-Pulse Switching Active Capacitor (OPSAC) was proposed. OPSAC is composed of single phase inverter with a dc capacitor. The inverter switches only one time per cycle of supply voltage. The biggest advantage of the proposed active capacitor is simple operation and inherent stability. In this paper, a new control method of OPSAC is proposed to increase distributed power. In the proposed method, three level operation is employed in the single phase inverter in OPSAC. The effectiveness of the proposed method is verified through simulations.