The Research On Optimal Scheduling Of Microgrid Based On Particle Swarms Optimization (PSO)

Most of the distributed generation in microgrid generates electricity by using renewable energy, which conforms to the strategy of sustainable development. So far, the power technology of distributed generation has been very mature and is gradually commercialized, such as wind power, solar power, microturbine, fuel cell, small hydropower and so on. With the development of microgrid, scheduling and economic operation of the microgrid are increasingly attracting the attention.A wide variety of distributed generations are considered in this paper. The theories of power generation, output characteristics and environmental benefits are studied and all kinds of distributed generations output model are established. On the basis of the traditional scheduling method, considering the demand side, the real-time scheduling model is established, which considered extensional real-time electricity price, the user response and interruptible load. In this paper, one day is divided into24hours, in order to the lowest power generation costs and electricity costs, the reasonable scheduling policies are used for every hour. For the grid-connected mode, storage battery is not considered and electricity is purchased from grid reasonably; for the island mode, interruptible load is considered. Compared to the original data, the cost declines with no effect on electric quality, and the real-time electricity price plays an important role in load shifting.