Abstract
This paper proposes energy management system (EMS) for power control in low voltage direct current (LVDC) distribution system. Since LVDC distribution system is connected to various distributed generators and power conversion devices, each situation of generated and load power should be considered for stable operation. Power control of LVDC distribution system must be required for its reliability and can be implemented by operation and control strategy of EMS. In this paper, proposed EMS defines each operation mode considering various conditions and each converter is controlled by centralized control based control strategy of EMS. Feasibility and stability of proposed EMS is verified by experiment results of LVDC distribution system including distributed energy resource such as wind turbine, photovoltaic array, battery and DC/AC load.
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