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Centralized BESS control to minimize demand of PV-supplied micro-grid under voltage constraints

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2 Author(s)
Khoa Le Dinh ; Dept. of Electr. Eng. & Biosci., Waseda Univ., Tokyo, Japan ; Hayashi, Y.

Developments in inverter technology are resulting in distributed generation units built as a combination of a renewable source or energy storage device and an inverter, and such units are increasingly being used in micro-grids. One advantage of this combination is quick power response, allowing for complex control solutions. This paper presents a control method for battery energy storage systems which minimizes power flow from the utility to micro-grids through an interconnection point, and that limits local bus voltages in middle-voltage 6.6 KV micro-grids, such as those supplied by photovoltaic systems and the utility. Micro-grid loop and radial structures are studied to evaluate the effectiveness of the proposed method. MATLAB/Simulink is used to simulate the micro-grid model using actual photovoltaic data and residential loads from Ota City, Japan.

Published in:

Power and Energy (PECon), 2012 IEEE International Conference on

Date of Conference:

2-5 Dec. 2012