Title :
A study of dead-time of PWM rectifier of voltage- source inverter without DC link components and its operating characteristics of induction motor
Author :
Iimori, Kenichi ; Shinohara, Katsuji ; Yamamoto, Kichiro
Author_Institution :
Dept. of Electr. & Electron. Eng., Kagoshima Univ., Japan
Abstract :
A voltage source inverter without DC link components is an AC-to-AC converter having dual bridges such as a PWM rectifier and a PWM inverter without DC link components, therefore, a PWM rectifier and a PWM inverter can be controlled independently. Conventional matrix converters have disadvantages such as a complicated commutation scheme and necessity of a large sized clamp circuit, but commutation and protection of this inverter can be implemented easily. In order to control the PWM rectifier and the PWM inverter independently, snubber circuits for the PWM rectifier are required to assure the path of load current during dead time. In this paper, analytical method of a snubber circuit and operating characteristics of an induction motor are described when a 0.75 kW induction motor driven by this inverter.
Keywords :
AC-AC power convertors; PWM invertors; induction motor drives; rectifying circuits; snubbers; 0.75 kW; AC-AC converter; DC link components; PWM inverter; PWM rectifier control; analytical method; induction motor drives; load current; matrix converters; pulse width modulation; snubber circuits; voltage- source inverter; Bridge circuits; Clamps; Commutation; Induction motors; Matrix converters; Pulse width modulation converters; Pulse width modulation inverters; Rectifiers; Snubbers; Voltage control;
Conference_Titel :
Industry Applications Conference, 2004. 39th IAS Annual Meeting. Conference Record of the 2004 IEEE
Print_ISBN :
0-7803-8486-5
DOI :
10.1109/IAS.2004.1348690
