Title :
A 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 :
This paper presents a new quasi-resonant DC-link (QRDCL) PWM inverter with zero voltage switching (ZVS) capability. The proposed circuit creates zero voltage intervals in the DC-link to facilitate ZVS of the inverter under all loading conditions and any PWM technique can be used to control the output voltage of the inverter. The maximum voltage across the inverter device is maintained around (1.01-1.08) p.u. The paper explains the principle of operation of the circuit and describes the analysis of each mode of operation. It also gives the design criteria for achieving zero voltage switching under all loading conditions. Detailed PSPICE simulation studies are carried out to study the performance of the proposed circuit under all the possible operating conditions and these results are verified experimentally. The simulation and experimental results of this inverter feeding an induction motor drive are also given
Keywords :
DC-AC power convertors; PWM invertors; SPICE; circuit simulation; induction motor drives; resonant power convertors; switching circuits; PSPICE simulation; PWM technique; ZVS; circuit performance; design criteria; induction motor drive; loading conditions; operating conditions; quasi-resonant DC-link PWM inverter; zero voltage switching; Induction motor drives; Pulse width modulation; Pulse width modulation inverters; RLC circuits; Resonance; Resonant inverters; Stress; Switches; Switching circuits; Zero voltage switching;
Conference_Titel :
Industry Applications Conference, 1999. Thirty-Fourth IAS Annual Meeting. Conference Record of the 1999 IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-5589-X
DOI :
10.1109/IAS.1999.806011
