Cooperation of a Photovoltaic Power Plant With a Battery Energy Storage System

Marti Vojtek, Michal Kolcun, Zsolt Čonka, Miroslav Mikita

Abstract


This paper deals with modelling of a photovoltaic power plant in combination with a battery energy storage system and their cooperation in order to better renewable energy utilization at local level. In this paper, the model of grid on a hybrid system that is formed by the battery energy storage system, a photovoltaic power plant, a utility grid and a small commercial load is proposed. Battery energy storage system based on lithium ion technology is connected by a DC-DC bidirectional power converter to the DC bus together with a photovoltaic power plant. Avltage source converter is used for conversion of DC to AC power. Utility grid and commercial load are connected to the AC side. Modeling of a hybrid system and simulation of the system’s behaviour during a random day of the year was performed in Matlab/Simulink environment employing SimPowerSystems toolbox. The results show the cooperation of the battery energy storage system and the photovoltaic power plant using system control in order to satisfy load requirements.

Keywords:
Battery; control; cooperation; energy storage; li-ion; photovoltaic; Simulink.

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DOI: 10.7250/pee.2016.007

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