PriMera Scientific Engineering (ISSN: 2834-2550)

Research Article

Volume 5 Issue 3

Design Study of high-power PV grid-connected Inverter System based on the Particle Swarm Algorithm

Qinghe Xu, Noppadol Amdee* and Adisak Sangsongfa

August 08, 2024

DOI : 10.56831/PSEN-05-150

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Abstract

Photovoltaic (PV) power generation is an essential form of renewable energy. A grid-connected PV inverter is the core equipment of a grid-connected PV power generation system. Based on the working principle of a high-power PV grid-connected inverter, the design of a 500 kW PV grid-connected inverter system is considered as an example. The equipment selection and parameter design methods of critical components, such as DC support capacitors, DC to AC modules, inductors, and capacitors, are introduced, and the overall system control strategy scheme and maximum power point tracking strategy are proposed. The results of MATLAB system simulation and field measurement experiments show that the control system can ensure that the output three-phase voltage and current are always in the same phase and frequency and that the output power is stable, fully meeting the grid connection requirements. In addition, the system has high conversion efficiency, good harmonic suppression, and a good MPPT tracking effect based on the particle swarm algorithm, which has high application and promotion value.

Keywords: Grid-connected inverter; Harmonic; System Design; MPPT; Conversion efficiency; Particle swarm algorithm

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