Performance Analysis of Multi Level Inverter with DC Link Switches for Renewable Energy Resources
Karthika N1, Sangari A2, Umamaheswari R3

1Karthika N, PG Student, Department of Power Electronics and Drives EEE, Anna University, Rajalakshmi Engineering College, Chennai (Tamil Nadu), India.
2Sangari A, Assistant Professor, Department of EEE, Anna University, Rajalakshmi Engineering College, Chennai (Tamil Nadu), India.
3Prof. Dr. R. Umamaheswari, Department of EEE, Anna University, Rajalakshmi Engineering College, Chennai (Tamil Nadu), India.
Manuscript received on 10 May 2013 | Revised Manuscript received on 18 May 2013 | Manuscript Published on 30 May 2013 | PP: 171-176 | Volume-2 Issue-6, May 2013 | Retrieval Number: F0826052613/13©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: The main objective for a grid‐tied Photo Voltaic (PV) inverter is to feed the harvested energy from PV panel to the grid with high efficiency and high power quality. This paper reveals a novel modulation scheme called single carrier Phase Opposition Disposition (POD) Pulse Width Modulation (PWM) technique for H Bridge Multi Level Inverter topology for the solar plants that can account for voltage profile fluctuations among the panels during the day and the performance is studied by comparing total harmonic distortion and switching losses at different switching frequencies. The operating principle and performance of the proposed inverter is verified through simulation studies.
Keywords: PV System, Pulse Width Modulation, THD, Simulation.

Scope of the Article: RF Energy Harvesting