A Near State PWM Method With Reduced Switching Frequency And Reduced Common Mode Voltage For Three-Phase Voltage Source Inverters

Author

Ün, Emre ; Hava, Ahmet M.

Author_Institution

Middle East Tech. Univ., Ankara

Volume

1

fYear

2007

fDate

3-5 May 2007

Firstpage

235

Lastpage

240

Abstract

The near state PWM (NSPWM) method, which reduces the common mode voltage/current, is proposed for three-phase PWM inverter drives. The optimal voltage vectors and their sequences are determined. The voltage linearity and DC bus and AC output PWM current ripple characteristics are studied. The method is thoroughly investigated and its performance is compared to conventional methods. Theory, simulations, and experiments show that NSPWM exhibits superior common mode and satisfactory PWM ripple performance characteristics.

Keywords

PWM invertors; motor drives; DC bus; NSPWM method; PWM current ripple characteristics; common mode current; common mode voltage; near state PWM method; optimal voltage vectors; switching frequency; three-phase PWM inverter drives; three-phase voltage source inverters; voltage linearity; Electromagnetic interference; Linearity; Pulse width modulation; Pulse width modulation inverters; Reflection; Space vector pulse width modulation; Switches; Switching frequency; Variable speed drives; Voltage; ASD; DPWM; EMI; Inverter; PWM; VSI; common mode current; common mode voltage; space vector; voltage reflection;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Machines & Drives Conference, 2007. IEMDC '07. IEEE International

Conference_Location

Antalya

Print_ISBN

1-4244-0742-7

Electronic_ISBN

1-4244-0743-5

Type

conf

DOI

10.1109/IEMDC.2007.383583

Filename

4270645