Analysis of PWM GTO Current Source Inverter-Fed Induction Motor Drive System
- 1 March 1987
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Industry Applications
- Vol. IA-23 (2), 256-262
- https://doi.org/10.1109/TIA.1987.4504900
Abstract
A GTO current source inverter which consists of six main GTO's, two auxiliary GTO's, and three capacitors is presented. This inverter can supply both the sinusoidal voltage and current to the motor by pulsewidth modulation (PWM) techniques. The normal PWM pattern produced by two control signals with the carrier and the modulating waves and the optimal PWM pattern determined by the harmonic analysis are described. The experimental waveforms for 2.2-kW induction motor drives are given and the circuit operation of this inverter in the PWM technique is clearly shown. In addition, the steady-state characteristics of this inverter-induction motor drive system are analyzed by the state-variable methods, and a close agreement between the analyzed and the experimental waveforms is obtained. It is shown that the harmonic components are eliminated or reduced by using the optimal PWM pattern, and the new inverter with sinusoidal current and voltage is very excellent for ac motor drive.Keywords
This publication has 3 references indexed in Scilit:
- New GTO Current Source Inverter with Pulsewidth Modulation Control TechniquesIEEE Transactions on Industry Applications, 1986
- A New Current Source GTO Inverter with Sinusoidal Output Voltage and CurrentIEEE Transactions on Industry Applications, 1985
- Beat phenomena of a current source inverter‐induction motor drive systemElectrical Engineering in Japan, 1982