Bi-level Optimal Dispatch Model for Micro Energy Grid Based on Load Aggregator Business

Firstly, the Energy Hub model integrated power hub, heating hub and cooling hub is proposed for the micro energy grid. According to it, the specific modeling of the steady state energy flow is carried out. Then, a bi-level optimal dispatch mechanism of micro energy grid is designed with the load aggregator business model. The upper-level is the optimal dispatch layer of dispatch center and the lower-level is the power allocation layer for load aggregators. Case studies are taken on a typical summer day and the model is solved under the time of use pricing mechanism. The optimal dispatch results demonstrate that the modeling method of energy hub and the bi-level optimal dispatch model are general modeling methods for analyzing the energy flow and investigating the optimal operation problem considering demand response.