Open Access

ARTICLE

A Novel Controller for Microgrid Interactive Hybrid Renewable Power Sources

by P. Kavitha^*, P. Subha Karuvelam

Government College of Engineering, Tirunelveli, 627007, Tamilnadu, India

* Corresponding Author: P. Kavitha. Email:

Intelligent Automation & Soft Computing 2022, 34(2), 821-836. https://doi.org/10.32604/iasc.2022.023035

Received 26 August 2021; Accepted 05 January 2022; Issue published 03 May 2022

Abstract

In this paper, a self-sufficient electric power generation is proposed by using hybrid renewable sources like solar and wind turbines to favor a smart and green environment. This distributed generation unit is connected to the grid through an 3Φ inverter. The power drawn from the hybrid unit is stored in the batteries to transfer power during the non-availability of power sources. This standalone power conversion and storage system are developed by using power electronic converters and controllers to ensure balanced power flow operation. A PI (Proportional Integral) controller is utilized for generating the PWM (Pulse Width Modulation) pulses for the wind side converter. The GWO (Grey Wolf Optimization) optimized PI controller is used to control the PV (Photovoltaics) side SEPIC (Single-Ended Primary-Inductor Converter) for improvising the transient response of the system. The generated power is interfaced with grid through a three phase inverter, which is controlled by dq (Direct-axis and Quadrature-axis) theory. The power quality problems are effectively eliminated with the proposed converters. Thus, a continuous stable power is fed into the grid through the proposed approach. An automatic control is enabled for easy operation. The system is modeled in MATLAB and a prototype is developed to verify the simulation results.

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Keywords

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