Title :
Multi-stage DC hybrid switch with slow switching
Author :
Tang, Yuchen ; Duarte, Jorge ; Smeets, R.P.P. ; Motoasca, T.E. ; Lomonova, E.A.
Author_Institution :
Eindhoven Univ. of Technol., Eindhoven, Netherlands
Abstract :
The applications of direct current are limited in medium and high power systems because of the problems in switching. In this paper, a circuit of a multi-stage dc hybrid switch is proposed for medium-power (10kW) highly-inductive dc systems. Based on the multi-stage switching strategy, a slow switching method is further studied for limiting the overvoltage to power semiconductor devices. The feasibility of the circuit, the strategy, and the method for a 10 kW inductive DC system is verified by both simulation and prototype tests. The limitation and potential of the multi-stage hybrid switching concept for higher power-level systems are additionally discussed.
Keywords :
overvoltage protection; power semiconductor switches; high power level system; inductive DC system; medium-power highly-inductive DC system; multistage DC hybrid switching strategy; overvoltage device; power 10 kW; power semiconductor device; slow switching method; Inductance; Insulated gate bipolar transistors; Resistors; Simulation; Switches; Switching circuits; Voltage control;
Conference_Titel :
IECON 2011 - 37th Annual Conference on IEEE Industrial Electronics Society
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-61284-969-0
DOI :
10.1109/IECON.2011.6119523
