Title :
A novel current source PWM drive topology with specific harmonic elimination switching patterns
Author :
Wei, Shen ; Maswood, Ali I.
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Inst., Singapore
fDate :
12/1/2000 12:00:00 AM
Abstract :
This letter presents a novel current source PWM rectifier/inverter topology which has low input current harmonics and high input displacement factor, for high-power induction motor drive applications. A suitable PWM specific harmonic elimination (PWM-SHE) switching pattern is developed in order to just eliminate the 11th and 13th harmonics, required by the proposed topology. A genetic algorithm and the conjugate gradient descent method are combined to solve the nonlinear transcendental functions for PWM-SHE. This scheme converges quickly.
Keywords :
AC-DC power convertors; DC-AC power convertors; PWM invertors; PWM power convertors; conjugate gradient methods; genetic algorithms; harmonic distortion; power conversion harmonics; rectifying circuits; switching circuits; conjugate gradient descent method; convergence speed; current source PWM drive topology; current source PWM rectifier/inverter topology; genetic algorithm; induction motor drive applications; input current harmonics; input displacement factor; nonlinear transcendental functions; specific harmonic elimination switching patterns; Circuit topology; Induction motor drives; Power harmonic filters; Pulse width modulation; Rectifiers; Switches; Switching circuits; Switching converters; Thyristors; Variable speed drives;
Journal_Title :
Power Engineering Review, IEEE
