Title :
A feedback-type dead-time compensation method for high-frequency PWM inverter — Delay and pulse width characteristics
Author :
Ogawa, Masashi ; Ogasawara, Satoshi ; Takemoto, Masatsugu
Author_Institution :
Hokkaido Univ., Sapporo, Japan
Abstract :
This paper discusses a dead-time compensation method for high-frequency pulse-width modulation (PWM) inverters. Feedback-type dead-time compensation can eliminate error in the inverter output voltage. With next-generation switching devices using SiC, the switching frequency of inverters is expected to improve to 10-fold that of conventional inverters. However, as switching frequency increases, dead time will more strongly affect output voltage error. This paper proposes a new compensation method, which can reduce the minimum output pulse width and the phase delay of the inverter output voltage. An experimental system was constructed and tested, using highspeed power MOSFETs and a field-programmable gate array controller. Experimental results support the validity and usefulness of the proposed compensation method.
Keywords :
PWM invertors; compensation; delay circuits; field programmable gate arrays; power MOSFET; silicon compounds; switching convertors; wide band gap semiconductors; SiC; delay characteristics; error elimination; feedback-type dead-time compensation; field programmable gate array controller; high speed power MOSFET; high-frequency PWM inverter; inverter output voltage; inverter switching frequency; minimum output pulse width reduction; next-generation switching devices; phase delay; pulse width characteristics; pulse-width modulation inverters; Delay; Integrated circuits; Inverters; Logic gates; Pulse width modulation; Radiation detectors; Switching frequency;
Conference_Titel :
Applied Power Electronics Conference and Exposition (APEC), 2012 Twenty-Seventh Annual IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4577-1215-9
Electronic_ISBN :
978-1-4577-1214-2
DOI :
10.1109/APEC.2012.6165804
