Rapid transaction to load variations of active filter supplied by PV system
Rapid transaction to load variations of active filter supplied by PV system作者机构:Laboratoire Systemes Electromecaniques Badji-Mokhtar Annaba University B.P. 12 Annaba 23000 Alegria
出 版 物:《Frontiers in Energy》 (能源前沿(英文版))
年 卷 期:2014年第8卷第3期
页 面:335-344页
核心收录:
学科分类:080802[工学-电力系统及其自动化] 0808[工学-电气工程] 08[工学] 0807[工学-动力工程及工程热物理]
主 题:solar panels maximum power point tracking(MPPT) DC/DC converter (Boost) shunt active filter,instantaneous power control power quality harmonics,imbalances reactive energy
摘 要:This paper deals with the analysis and control of a photovoltaic (PV) system connected to the main supply through a Boost converter and shunt active filter supplied by a PV system providing continuous supply of nonlinear load in variation. A robust control of a PV system connected to the grid while feeding a variable nonlinear load is developed and highlighted. This development is based on the control of the Boost converter to extract the maximum power from the PV system using the Perturb and Observe (P and O) algorithm in the presence of temperature and illumination. The proposed modeling and control strategy provide power to the variable nonlinear load and facilitates the transfer of power from solar panel to the grid while improving the quality of energy (harmonic currents compensation, power factor compensation and dc bus voltage regulation). Validation of the developed model and control strategy is conducted using power system simulator Sim-Power System Blockset Matlab/Simulink. To demonstrate the effectiveness of the shunt active filter to load changes, the method of instantaneous power (pq theory) is used to identify harmonic currents. The obtained results show an accurate extraction of harmonic currents and perfect compensation of both reactive power and harmonic currents with a lower THD and in accordance with the IEEE-519 standard.