Title :
A new base/gate drive suppression method for voltage source inverters by detecting the output voltage polarity
Author :
Park, In Gyu ; Yoon, Ji Taek
Author_Institution :
Dept. of Control & Instrum. Eng., Wonkwang Univ., Chonbuk, South Korea
Abstract :
The existing base/gate drive suppression methods for the leg of voltage source inverters are those which suppress base/gate drives of either of the two switching devices of the leg by detecting the output current polarity. These methods have the merit that they can drive the leg without dead times. But they have the problem that detecting the output current polarity is not easy. This paper proposes a new base/gate drive suppression method by detecting not the output current polarity but the output voltage polarity. The output voltage waveform is a two-leveled large signal, so that detecting the polarity is very easy
Keywords :
driver circuits; invertors; switching circuits; base/gate drive suppression method; output voltage polarity detection; output voltage waveform; switching devices; two-leveled large signal; voltage source inverters; Circuit faults; Instruments; Leg; Pulse width modulation; Pulse width modulation inverters; Reliability engineering; Signal detection; Switches; Switching circuits; Voltage control;
Conference_Titel :
Power Electronics Specialists Conference, 1996. PESC '96 Record., 27th Annual IEEE
Conference_Location :
Baveno
Print_ISBN :
0-7803-3500-7
DOI :
10.1109/PESC.1996.548796
