Efficiency Improvement of Parallel Source Inverters in Islanded AC Microgrid

Hasan, Md Akib and Hossain, Md Showkot and Mohd Azrik, Roslan and Azmi, Azralmukmin and Leong, Jenn Hwai and Nazib, Ahmad Afif (2024) Efficiency Improvement of Parallel Source Inverters in Islanded AC Microgrid. In: 2024 IEEE International Conference on Power and Energy, PECon 2024.

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Abstract

The limited capacity of a single inverter has led to the implementation of parallel inverters for interconnecting renewable energy generation systems. Droop control is commonly used for operating parallel inverters; however, conventional droop control has a low conversion efficiency under heavy loads. Therefore, this paper designed an efficient control strategy to enhance the conversion efficiency of parallel inverters. The employed method incorporates an internal current and voltage control loop based on a synchronous reference frame, along with conventional PI controllers. Additionally, Particle Swarm Optimization (PSO) is utilized to determine the optimal conversion efficiency of the parallel inverters. In this approach, the distributed generation (DG) unit adjusts its control mode to modify system voltage and frequency in response to dynamic load conditions. Efficiency improvements were observed in the range of 0.19% to 0.41% across various initial power distribution ratios, highlighting the efficacy of optimized droop parameters in maintaining robust and efficient power systems. Simulation results using MATLAB/SIMULINK demonstrate that the proposed control system improves system efficiency

Item Type:	Conference or Workshop Item (Paper)
Divisions:	Faculty Of Electrical Technology And Engineering
Depositing User:	NURHASHIRAH BORHAN
Date Deposited:	31 Jul 2026 07:06
Last Modified:	31 Jul 2026 07:06
URI:	http://eprints.utem.edu.my/id/eprint/30247
Statistic Details:	View Download Statistic

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