A novel control scheme of a parallel current-controlled PWM inverter

Author

Ogasawara, Satoshi ; Takagaki, Jin ; Akagi, Hirofumi ; Nabae, Akira

Author_Institution

Dept. of Electr. Eng., Nagaoka Univ. of Technol., Niigata, Japan

Volume

28

Issue

5

fYear

1992

Firstpage

1023

Lastpage

1030

Abstract

A parallel technique for current-controlled pulse-width-modulated (PWM) inverters is described. Two voltage source inverters, the output terminals of which are connected in parallel through current balancers, are used as a main circuit. In this scheme, excellent characteristics both in steady states and in transient states are obtained, keeping the average values of the cross current and zero sequence current at zero level. This current control scheme is applicable to large-capacity GTO inverters because good performance is attained even if the switching frequency is only a few hundred hertz, as is shown in the experimental results

Keywords

electric current control; invertors; pulse width modulation; thyristor applications; GTO inverters; cross current; current balancers; parallel current-controlled PWM inverter; pulse width modulation; steady states; switching frequency; transient states; voltage source inverters; zero sequence current; Circuits; Current control; Hysteresis; Industry Applications Society; Pulse width modulation inverters; Reactive power; Servomechanisms; Steady-state; Switching frequency; Voltage control;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/28.158825

Filename

158825