Title :
Continuous PWM to square wave inverter control with low common mode emissions
Author :
Cacciato, Mario ; Consoli, Alfio ; Scarcella, Giuseppe ; Testa, Antonio
Author_Institution :
Ist. di Elettrotecnica ed Elettronica, Catania Univ., Italy
Abstract :
A new overmodulation technique is presented which is able to reduce the common mode currents generated in inverter-fed motor drives equipped with fast IGBT devices and produced by the high rate of variation of the voltage. The main advantage is that the inverter output voltage is continuously increased up to the maximum allowed by-the DC bus voltage. Full evaluation of the features of the proposed approach is experimentally accomplished on a standard PWM inverter-fed induction motor drive
Keywords :
DC-AC power convertors; PWM invertors; induction motor drives; insulated gate bipolar transistors; power bipolar transistors; power semiconductor switches; switching circuits; DC bus voltage; PWM inverter; common mode current generation; common mode emissions; continuous PWM-to-square wave inverter control; fast IGBT devices; induction motor drive; overmodulation technique; voltage variation rate; Clamps; Costs; Electric motors; Induction motor drives; Insulated gate bipolar transistors; Poles and zeros; Pulse width modulation; Pulse width modulation inverters; Switching frequency; Voltage;
Conference_Titel :
Power Electronics Specialists Conference, 1998. PESC 98 Record. 29th Annual IEEE
Conference_Location :
Fukuoka
Print_ISBN :
0-7803-4489-8
DOI :
10.1109/PESC.1998.702002
