Title :
Power quality improvement in 3-Φ grid connected photovoltaic system with battery storage
Author :
Kumar, Ravindra ; Mohanty, Aseema ; Mohanty, Soumya R. ; Kishor, Nand
Author_Institution :
Electr. Eng. Dept., Galgotias Coll. of Eng. &Tech, Noida, India
Abstract :
The paper presents a study of power quality (PQ) improvement in a 3-Φ grid connected photovoltaic (PV) system. The variable step perturb & observe (VS-PO) maximum power point tracking (MPPT) scheme has been used to force the PV generation reach the maximum power operation. A battery energy storage system (BESS) via a bi-directional DC/DC converter is introduced in the DC bus to maintain the DC bus voltage level at a constant value. A 3-Φ hybrid filter is connected into the utility grid to compensate the reactive power and the load current harmonics, generated by the non linear load. Control strategy of hybrid filter is based on the vectorial theory dual formulation of instantaneous reactive power. The performance study is simulated under variations of solar insolation and loads.
Keywords :
battery storage plants; energy storage; maximum power point trackers; photovoltaic power systems; power grids; power harmonic filters; power supply quality; power system harmonics; power utilisation; reactive power; 3-Φ grid connected photovoltaic generation system; 3-Φ hybrid filter; BESS; DC bus voltage level; MPPT scheme; PQ; PV; VS-PO scheme; battery energy storage system; bidirectional DC-DC converter; instantaneous reactive power compensation; load current harmonic generation; maximum power point tracking scheme; power quality improvement; solar insulation; variable step perturb & observe scheme; vectorial theory; Active filters; Batteries; Harmonic analysis; Maximum likelihood detection; Passive filters; Power harmonic filters; Reactive power; Battery storage; Hybrid filter; Instantaneous reactive power; PV generation; Power quality;
Conference_Titel :
Power Electronics, Drives and Energy Systems (PEDES), 2012 IEEE International Conference on
Conference_Location :
Bengaluru
Print_ISBN :
978-1-4673-4506-4
DOI :
10.1109/PEDES.2012.6484479
