Energy Management of Hybrid Renewable Energy System with Fractional Order PI Controller Based STATCOM

This article delineates energy co-ordination among hybrid renewable energy (HRE) sources and enhanced quality of power with a fractional order PI (FOPI) controller incorporated STATCOM. Solar and wind energy power generations are interfaced for deliver power to non-linear loads. Due environmental factors, intermittence nature the power produced by HRE sources is in unbalanced nature. These unbalanced voltage and currents impact the damage critical or sensitive loads. In this view, for the energy management of HRE sources and improves its quality of power, a static compensator (STATCOM) with integration of quasi-Z-Source Inverter (qZSI) is evolved in this work. For well operating STATCOM, FOPI controller modeled in this work. The power produced by PV system connected to qZSI converter to maximize its power. An adaptive frequency fixed-SOGI is employed to estimate the fundamental component of three phase currents, which can be utilizes for precise control of the STATCOM. However, the FOPI controller pose optimizes the controller parameters (K<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">p</inf>, K<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">i</inf> and fractional parameters) for achieve improved performance. To check the effectiveness of the proposed FOPI based STATCOM for HRE system, simulation study carried out for various mode of hybrid RE source operating conditions.