A novel neutral point potential stabilization technique using the information of output current polarities and voltage vector

Author

Yamanaka, Katsutoshi ; Hava, Ahmet M. ; Kirino, Hiroshi ; Tanaka, Yoshiyuki ; Koga, Noritaka ; Kume, Tsuneo

Author_Institution

Yaskawa Electr. Corp., Kitakyushu, Japan

Volume

2

fYear

2001

Firstpage

851

Abstract

This paper proposes a new neutral point potential control technique for the three-level neutral-point-clamped PWM inverter. Utilizing the phase current polarity information, this technique distributes the redundant voltage vectors in a manner to obtain stable neutral point voltage under all operating conditions including the zero power factor condition. Detailed analysis and computer simulations show the superiority of the proposed method. The feasibility of the proposed method has been proven via laboratory experiments.

Keywords

PWM invertors; stability; voltage control; computer simulations; neutral point potential stabilization technique; output current polarities; phase current polarity information; redundant voltage vectors distribution; three-level neutral-point-clamped PWM inverter; voltage vector; zero power factor condition; Capacitors; Computer simulation; Costs; Fluctuations; Functional analysis; Low voltage; Pulse width modulation inverters; Reactive power; Stress; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2001. Thirty-Sixth IAS Annual Meeting. Conference Record of the 2001 IEEE

Conference_Location

Chicago, IL, USA

ISSN

0197-2618

Print_ISBN

0-7803-7114-3

Type

conf

DOI

10.1109/IAS.2001.955552

Filename

955552