Study of dead time of PWM rectifier of Voltage-source inverter without DC-link components and its operating characteristics of induction motor

A voltage-source inverter without dc-link components is an ac-to-ac converter having dual bridges of a pulsewidth-modulated (PWM) rectifier and a PWM inverter that can be controlled independently. While conventional matrix converters have disadvantages, such as a complicated commutation scheme and n...

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Bibliographic Details
Published in:IEEE transactions on industry applications 2006-03, Vol.42 (2), p.518-525
Main Authors: Iimori, K., Shinohara, K., Yamamoto, K.
Format: Article
Language:English
Subjects:
Bridge circuits
Circuits
Commutation
Induction motors
Inverters
Matrix converters
Pulse duration modulation
Pulse inverters
Pulse width modulation converters
Pulse width modulation inverters
Rectifiers
Snubber circuit
Snubbers
Voltage control
voltage-source inverter
without dc-link components
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Summary:A voltage-source inverter without dc-link components is an ac-to-ac converter having dual bridges of a pulsewidth-modulated (PWM) rectifier and a PWM inverter that can be controlled independently. While conventional matrix converters have disadvantages, such as a complicated commutation scheme and necessity of a large-sized clamp circuit, commutation, and protection of our 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 a snubber circuit are described when a 0.75-kW induction motor is driven by our inverter.
ISSN:0093-9994
1939-9367
DOI:10.1109/TIA.2006.870040