A New Energy Storage System Structure and Its Application in Active Distribution Network
A new energy storage system structure is proposed based on the definition of active distribution network.This structure employs the energy-storage unit in the distribution energy resources to form a new system configuration,which can be utilized to connect two or multiple lines.Voltage oriented vector control method has been adopted in energy storage inverter to achieve decoupling control of active and reactive power respectively.Three operation modes are studied for the structure by controlling the open and close state of different switches.the third mode is emphatically studied for its capability of distributing and exchanging the power generated by the energy storage system among different feeders.Simulation results validate the new structure's advantages in flexible power control and power quality improvement.The proposed energy storage system structure offers a feasible energy storage technology in active distribution network.
active distribution networknew energy storage system structurevoltage oriented vector controlpower quality
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