Title :
Common mode voltage reduction method modifying the distribution of zero voltage vector in PWM converter/inverter system
Author :
Lee, Hyeoun-Dong ; Sul, Seung-Ki
Author_Institution :
Sch. of Electr. Eng., Seoul Nat. Univ., South Korea
Abstract :
This paper proposes a new space-vector pulsewidth modulation strategy that can restrict the common mode voltage within one-third of the DC bus voltage in a PWM converter/inverter system with the synchronization of the switching sequence. In this paper, the generation of the common mode voltage pulse whose magnitude reaches two-thirds of DC bus voltage is investigated and elimination of this voltage pulse is presented. The proposed method can be easily implemented in software and requires no extra hardware without degradation in control performance of PWM converter/inverter fed AC motor drives
Keywords :
AC motor drives; PWM invertors; PWM power convertors; switching circuits; synchronisation; AC motor drives; DC bus voltage; PWM converter/inverter system; common mode voltage pulse; common mode voltage reduction method; control performance degradation; space-vector pulsewidth modulation; switching sequence synchronisation; voltage pulse elimination; zero voltage vector distribution; DC generators; Degradation; Hardware; Pulse generation; Pulse inverters; Pulse width modulation converters; Pulse width modulation inverters; Software performance; Space vector pulse width modulation; Voltage;
Conference_Titel :
Industry Applications Conference, 1999. Thirty-Fourth IAS Annual Meeting. Conference Record of the 1999 IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-5589-X
DOI :
10.1109/IAS.1999.805954
