Title :
A novel quasi-resonant DC-link PWM inverter for induction motor drive
Author :
Jafar, J.J. ; Fernandes, B.G.
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., Kanpur, India
Abstract :
A novel quasi-resonant DC-link (QRDCL) inverter for induction motor drives is proposed. Only one additional switching device is being used to create zero voltage instants in the DC-link to facilitate zero voltage switching of the inverter devices under all loading conditions. The voltage stress on the inverter devices is around (1.01-1.10)pu and any PWM technique can be used to control the output voltage of the inverter. In this paper, the principle of operation and the detailed analysis of the proposed QRDCL inverter are presented. Design criterion to achieve soft switching of the inverter devices is also given. Detailed PSPICE simulation studies are carried out to predict the performance of the inverter feeding an induction motor and these simulated results are verified experimentally
Keywords :
DC-AC power convertors; PWM invertors; induction motor drives; load (electric); resonant power convertors; switching circuits; PSPICE simulation; PWM technique; additional switching device; design criterion; induction motor drive; loading conditions; output voltage control; performance prediction; quasi-resonant DC-link PWM inverter; soft switching; voltage stress; zero voltage instants; zero voltage switching; Induction motor drives; Inductors; Pulse width modulation inverters; RLC circuits; Resonance; Resonant inverters; Stress; Switches; Switching circuits; Voltage;
Conference_Titel :
Power Electronics Specialists Conference, 1999. PESC 99. 30th Annual IEEE
Conference_Location :
Charleston, SC
Print_ISBN :
0-7803-5421-4
DOI :
10.1109/PESC.1999.789050
