A multi-mode coordinated operation control strategy for optical storage DC microgrid

The proposed microgrid provides a new way to explore and makes usage of available solar energy resources. In order to realize the energy management of microgrid, this paper describes a multi-mode coordinated operation control strategy with the main control objective of ensuring the DC bus voltage stability and the mode division depends on the battery charge state and the source-load power state inside the microgrid system. The simulation model is established in PSCAD/EMTDC, and the simulation results verify the rationality and effectiveness of the proposed coordinated control strategy.