Optimal operation of complicated distribution networks

Economic operation of complicated distribution network is an important problem. A bilevel optimal operation model of complicated distribution networks with microgrids integration is built. In the model, the day-ahead optimal operation of complicated distribution networks is on the upper-level and the optimal operation of the microgrid is on the lower-level. Electricity exchange price constraints are considered in this model. Further, in order to overcome negative influences brought by the volatility of renewable distributed generators, electric vehicles are adopted to balance the volatility. The proposed bilevel optimal operation model is solved by particles swarm optimization based on bilevel iterative algorithm (BIA-PSO). The demonstration is performed on a modified IEEE 33-node radial distribution network with microgrid integration.