Title :
Novel passive lossless soft-clamped snubber for voltage source inverters
Author :
He, X. ; Finney, S.J. ; Williams, B.W. ; Qian, Z.
Author_Institution :
Dept. of Electr. Eng., Zhejiang Univ., China
Abstract :
A novel passive lossless soft-clamped snubber circuit for voltage source inverters is proposed. The energy trapped in the inductive turn-on snubber is recovered into the DC supply and load, without any active devices, associated control circuitry or resistors. The overshoot voltage on the main power switches is clamped and the peak switch current is low. This snubber circuit is suitable for use in high power insulated gate bipolar transistor (IGBT) inverters
Keywords :
DC-AC power convertors; bipolar transistor switches; insulated gate bipolar transistors; invertors; power bipolar transistors; power semiconductor switches; protection; snubbers; switching circuits; DC supply; energy recovery; energy trapping; inductive turn-on snubber; load; main power switches; overshoot voltage; passive lossless soft-clamped snubber; power insulated gate bipolar transistor; voltage source inverters; Circuits; Diodes; Insulated gate bipolar transistors; Inverters; Rails; Resistors; Snubbers; Switches; Switching frequency; Voltage;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1996. APEC '96. Conference Proceedings 1996., Eleventh Annual
Conference_Location :
San Jose, CA
Print_ISBN :
0-7803-3044-7
DOI :
10.1109/APEC.1996.500443
