B. Vimala, Y. V. Siva Reddy, G. Pulla Reddy Engineering College, Kurnool, Andhra Pradesh, India.
DOI :01.0401/ijaict.2015.05.06
International Journal of Advanced Information and Communication Technology
Received On :November 19, 2019
Revised On :December 13, 2019
Accepted On :January 10, 2019
Published On :February 05, 2019
Volume 06, Issue 02
Pages : 1026-1032
Abstract
High Common-mode voltage (CMV) creates many negative effects in an AC motor. CMV that has high dv/dt causes high common mode currents which in turn create problems in an inverter driven motor system. This has increased the necessity of mitigating the CMV. Photo Voltaic (PV) systems have become very popular in the recent times and normally we use a three phase VSI in PV applications. The conventional PWM methods such as Space Vector PWM (SVPWM) and Discontinuous PWM (DPWM) if used for the controller of inverter in PV applications will induce a common mode voltage. In order to mitigate the problems associated with CMV in PV inverter applications new Reduced Common Voltage PWM (RCMV-PWM) methods such as Active zero state PWM (AZSPWM), Remote state PWM (RSPWM) and Near state PWM (NSPWM) are proposed in this work. Here we discuss about AZSPWM and NSPWM. We compare them with conventional PWM methods. The effectiveness of the proposed scheme is verified by using MATLAB simulink software. Keywords- Common mode voltage, Common mode current, Photovoltaic, THD, Pulse width modulation, Three phase VSI, Matlab Simulink.
Keywords
Lifting Scheme, Bi-orthogonal, Haar wavelet,IWT
Cite this article
B. Vimala, Y. V. Siva Reddy, “ Reduction of Common Mode Voltage in Three Phase Grid Connected Converters through Novel PWM Techniques, ” INTERNATIONAL JOURNAL OF ADVANCED INFORMATION AND COMMUNICATION TECHNOLOGY, pp.1026-1032, January. 2019.
Copyright
© 2019 B. Vimala, Y. V. Siva Reddy. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.