Title :
A new soft-switched, thyristor-based, regenerative, quasi-resonant, current regulated inverter
Author :
Kotsopoulos, Andrew ; Holmes, Donald Grahame
Author_Institution :
Dept. of Electr. & Comput. Syst. Eng., Monash Univ., Clayton, Vic., Australia
Abstract :
A variety of soft-switching techniques have been proposed to reduce the switching losses and EMI problems that occur with higher switching frequencies in hard-switched converters. In this paper, a new, quasi-resonant, soft-switched, three-phase inverter is presented which uses 12 thyristors as the power electronic switches, and hence has potential for use in high-power applications. The converter is fully current-regulated, suitable for high-performance motor drive applications, and is capable of 4-quadrant operation to allow regeneration back into the DC supply. The operation and the control of the inverter are described in detail and simulation and experimental results are presented
Keywords :
DC-AC power convertors; electric current control; electromagnetic interference; interference suppression; invertors; losses; resonant power convertors; switching circuits; thyristor convertors; 4-quadrant operation; DC supply; EMI reduction; current-regulation; high-power applications; power electronic switches; quasi-resonant inverter; regenerative inverter; soft-switching techniques; switching losses reduction; three-phase inverter; thyristor; Filters; Open loop systems; Pulse width modulation inverters; Resonance; Resonant inverters; Switching converters; Switching frequency; Thyristors; Topology; Zero voltage switching;
Journal_Title :
Industry Applications, IEEE Transactions on
