A New Method of Maximum Power Point Tracking for Maximizing the Power Generation from an SPV Plant

Abstract

<span style="font-size:11.0pt;mso-bidi-font-size: 10.0pt;font-family:" times="" new="" roman";mso-fareast-font-family:"times="" roman";="" mso-bidi-font-family:"times="" roman";mso-ansi-language:en-gb;mso-fareast-language:="" en-us;mso-bidi-language:ar-sa"="" lang="EN-GB">The objective of grid connected photovoltaic (PV) energy conversion system is to extract electrical energy from the PV array and supply to the grid with high power quality and high efficiency. This paper proposes a modified variable step Perturb and Observe (P&O) maximum power point tracking (MPPT) algorithm for improving the efficiency of single stage grid connected power conversion system. Further this paper suggests an integrated controller which is used to improve the quality of power supply to the grid. The proposed algorithm and control techniques are analyzed and compared with conventional methods. The same has been implemented in MATLAB Simulink and verified.</span>