Title :
Hybrid series connection of a controllable switch and thyristors
Author :
Park, In-Gyu ; Lee, Seok-Min
Author_Institution :
Dept. of Control & Instrum. Eng., Wonkwang Univ., Chonbuk, South Korea
Abstract :
A hybrid series connection of a controllable switch such as a bipolar junction transistor (BJT), an insulated gate bipolar transistor (IGBT), or a gate-turn-off thyristor (GTO) and thyristors is proposed and studied. The proposed hybrid series connection has a controllable turn-off capability. The thyristors in the proposed connection are not turned off by auxiliary commutation circuits, but turned off by the series-connected controllable switch, so that burdensome auxiliary commutation circuits are saved. A hybrid series connection of a BJT (or an IGBT) and GTOs is also studied. The proposed hybrid series connection can be applicable to DC choppers, inverters, and zero-voltage-switching resonant converters in high-voltage and high-power applications
Keywords :
DC-AC power convertors; choppers (circuits); commutation; insulated gate bipolar transistors; invertors; power bipolar transistors; power semiconductor switches; resonant power convertors; thyristors; DC choppers; auxiliary commutation circuits; bipolar junction transistor; controllable switch; controllable turn-off capability; gate-turn-off thyristor; hybrid series connection; insulated gate bipolar transistor; inverters; resonant converters; zero-voltage-switching; Choppers; Hybrid junctions; Insulated gate bipolar transistors; Inverters; Resistors; Resonance; Switches; Switching circuits; Thyristors; Voltage;
Journal_Title :
Industry Applications, IEEE Transactions on
