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Design of energy management system in distributed power station

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4 Author(s)
Zilong Yang ; Dept. of Renewable Energy Source, Chinese Acad. of Sci., Beijing, China ; Chunsheng Wu ; Hua Liao ; Honghua Xu

This paper presents an energy management system (EMS) for a grid-interactive droop-controlled distributed power station, which adjust inverter output based on the power source. The control architecture consists of two levels of hierarchy: (1) the P/Q droop control method of every inverter which can manage the output power of each unit in order to avoid critical communication lines; (2) the management of the distributed power station (DPS) through the control of the setpoints of the units in function of the battery charge level for different operation mode. A DPS Matlab/Simulink model includes two 10 kW and one 5 kW PV/battery/inverter systems was setup and optimized inverter outputs are then implement in real-time by the EMS.

Published in:

Sustainable Power Generation and Supply, 2009. SUPERGEN '09. International Conference on

Date of Conference:

6-7 April 2009