Title :
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
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;
Conference_Titel :
Industry Applications Conference, 2001. Thirty-Sixth IAS Annual Meeting. Conference Record of the 2001 IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-7114-3
DOI :
10.1109/IAS.2001.955552
