An Enhanced Reactive Power Compensation Scheme Using a Synthesis Segmental Multilevel Converted for Three-Phase Grid Systems

Author:

Nirmala Rajendran1ORCID,Venkatesan Sundharajan1

Affiliation:

1. Department of Electrical and Electronics Engineering, Alagappa Chettiar Government College of Engineering and Technology, Karaikudi-630003, Tamilnadu, India

Abstract

Solar photovoltaic (PV) systems have gained significant attention due to their easy implementation and availability, where proper energy management should be highly concentrated for a successful PV power utilization. In the traditional works, various controlling techniques have been developed for reactive power compensation. But, it lacks with the issues of reduced system performance, increased loss, and high harmonics. Hence, this paper aims to develop a new controlling methodology, named the Synthesis Segmental Multilevel Converter (SSMC) for reactive power compensation in a three-phase grid system. Initially, it extracts the maximum amount of power from the solar PV systems by using an Enhanced Perturb and Observe (EPO) method. Then, the panel separation is performed and the three-phase power input is given to the SSMC converter, where the synchronization and switching pulse generation processes are performed. During synchronization, integrated techniques such as Proportional Integral (PI), Fuzzy Logic Controller (FLC), and Improved Artificial Neural Network (IANN) are utilized to maintain the voltage, magnitude and phase angle in the same level. Consequently, the Inductance Capacitance (LC) filtering technique is applied to reduce the harmonics distortion in the signal. After that, the Park transformation is used to perform the dq0 to abc transformation, which is implemented for reducing the high volume of error. Finally, the error-free signal is fed to the three-phase grid system with reduced harmonics. During experimentation, both the simulation and analytical results have been taken for analyzing the performance of the proposed technique. Moreover, it is compared to the existing algorithms for proving the betterment of the proposed methodology.

Publisher

World Scientific Pub Co Pte Ltd

Subject

Electrical and Electronic Engineering,Hardware and Architecture,Media Technology

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