Rapid transaction to load variations of active filter supplied by PV system

2014年第8卷第3期

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《能源前沿（英文）》 >> 2014年第8卷第3期 doi: 10.1007/s11708-014-0325-7

Rapid transaction to load variations of active filter supplied by PV system

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Laboratoire Systèmes électromécaniques, Badji-Mokhtar Annaba University, B.P.12, Annaba 23000, Alegria

发布日期：2014-09-10

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 ( 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.

关键词

solar panels ; maximum power point tracking (MPPT) ; DC/DC converter (Boost) ; shunt active filter ; instantaneous power control ; power quality ; harmonics ; imbalances ; reactive energy

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