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Flexibility Scheduling for Microgrids with Electric Vehicle (EV) Penetration
Results of the paper shows that using the proposed flexibility scheduling method will save more energy cost and improve the utilization rate of the grids energy storage system (ESS).
Abstract
In this paper, a short-term operational scheduling strategy for resources in microgrid is proposed. The flexibility requirement of renewable power generations, and the fluctuations in loads, including the emerging electric vehicles (EV) charging loads is taken into consideration. The proposed algorithm collects the updated states, parameters and forecast information of the microgrid at the beginning of each dispatch horizon. With the updated information, the flexibility requirement envelopes of renewable generations are formulated. Flexibility management is conducted afterwards. The outputs of dispatchable units and the required energy exchange with microgrid in the next several time steps are also calculated. Results of the paper shows that using the proposed flexibility scheduling method will save more energy cost and improve the utilization rate of the grids energy storage system (ESS). These results and the algorithm introduced would help in developing flexibility oriented power dispatch methods.