ICGST- ACSE Journal

ACSE Volume (9) - Issue (I) ICGST

A Qualitative Space Vector PWM Algorithm for a Five-level Neutral Point Clamped Inverter

 P. Satish Kumar1, J.Amarnath2, S.V.L. Narasimham3

 1Department of Electrical Engineering, University College of Engineering,  Osmania University, Hyderabad, A.P, INDIA, 500 047
2Department of Electrical Engineering, J.N.T.University, Hyderabad, Andhra Pradesh, INDIA
3School of Information Technology, J.N.T.University, Hyderabad, Andhra Pradesh, INDIA

Abstract
In this paper a qualitative Space Vector Pulse Width Modulation (SVPWM) algorithm for five-level neutral point clamped inverter is proposed. With the proposed method, the three nearest compound vectors can be selected easily and dwelling time of each vector can be simply calculated for five-level inverter. The scheme can be extended to higher-level inverters. Simulation results have been presented for four-level and five-level neutral point clamped inverters. The total harmonic distortion have been calculated and compared with lower levels. The results have been good agreement with the published work.

Keywords: Multi-level inverters, SVPWM, neutral point clamped inverter, Induction motor, THD.

(P1110912685, 896 KB)

@ARTICLE{P1110912685,

AUTHOR = {P. Satish Kumar and J.Amarnath and S.V.L. Narasimham},
 
TITLE = {A Qualitative Space Vector PWM Algorithm for a Five-level Neutral Point Clamped Inverter },

JOURNAL = {ICGST International Journal on Automatic Control and Systems Engineering, ACSE},

YEAR = {2009},

VOLUME = {09},

ISSUE = {I},

PAGES={43--50}

}

(P1110912685, 896 KB)