Title :
A high performance current source inverter
Author :
Joos, Geza ; Moschopoulos, Gerry ; Ziogas, Phoivos D.
Author_Institution :
Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada
fDate :
10/1/1993 12:00:00 AM
Abstract :
A modified PWM (pulse width modulated) current source inverter (CSI) that can operate with varying modulation indices (including low modulation indices) is presented. Any standard VSI (voltage source inverter) PWM pattern can be used with this inverter. This feature is obtained without compromising the converter system efficiency and power factor, and at the cost of only one auxiliary switch. The added degree of freedom obtained through modulation index control allows instantaneous control of output current and results in a high-performance inverter system. Inverter steady-state performance equations have been derived, as well as design equations and guidelines. The feasibility and performance of the CSI are verified by simulation and experimental implementation on a 5 kVA system
Keywords :
electric current control; invertors; pulse width modulation; switching circuits; thyristor applications; 5 kVA; PWM; auxiliary switch; current control; current source inverter; degree of freedom; design; efficiency; feasibility; modulation indices; performance; power factor; simulation; Control systems; Costs; Equations; Pulse inverters; Pulse width modulation inverters; Reactive power; Steady-state; Switches; Switching converters; Voltage;
Journal_Title :
Power Electronics, IEEE Transactions on
