Power Quality Improvement of a Solar Energy Conversion System by a Coordinated Active and LCL Filtering

Autor:	Azeddine Houari, Mohamed Machmoum, Atallah Ouai, Lakhdar Mokrani
Rok vydání:	2021
Předmět:	Computer Networks and Communications Signal Processing Electronic engineering Solar energy conversion Environmental science Power quality Electrical and Electronic Engineering Software Computer Science Applications Information Systems
Zdroj:	Periodica Polytechnica Electrical Engineering and Computer Science. 65:373-381
ISSN:	2064-5279 2064-5260
Popis:	Power converters play an essential role in Photovoltaic (PV) system to maximize the power transfer to the electrical grid. However, the generated harmonics in the grids due to these power converters and nonlinear loads are considered one of the encountered problems to overcome. This paper presents a decoupled control of PV field real power and reactive power injected to the high voltage network via a PWM inverter by using fuzzy logic controllers. Elsewhere, a procedure based on a coordinated active and LCL filtering is proposed to mitigate the harmonic current introduced by a nonlinear load and the inverter itself in such a way to enhance the power quality injected into the grid. The results obtained in the present study show the good performance of the suggested hybrid filtering approach and demonstrate that almost all harmonics orders of the grid current are well mitigated; the current Total Harmonic Distortion (THD) meets its standard and consequently the power quality is considerably enhanced.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5c15a0f3a33228c5342dfaadac7926a5 https://doi.org/10.3311/ppee.17215 Zobrazit plný text záznamu