Coordinated Dispatch of Wind-Solar-Thermal Power System with Energy Storage

As the renewable energy with the characteristics of randomness, volatility and uncertainty is widely accessed to the power system, the energy storage system has become crucial and indispensable aspects of the novel power system due to its peak-clipping and trough-filling characteristics. They have gradually become a hot topic in the research of coordinated dispatch in power systems. The model described in this article is to study output scheduling of the unit when wind and photovoltaic power is integrated into traditional power systems and operate in collaboration with energy storage systems, for the purpose of minimizing the penalty consumption of renewable energy, the expense of coal-fired power generation, as well as the lifetime loss cost of energy storage. Cases show that the model is able to effectively reduce renewable energy spillovers, raise the utilization rate of renewable energy as well as decreasing the life-time loss cost of energy storage systems, which is of great significance for building an environmentally friendly new energy system.