After large-scale renewable energy resources integration,the traditional reserve system restricts the renewable energy consumption capacity of power system with high proportion of renewable energy.Therefore,a method of incorporating renewable energy into standby power systems based on the coordination of pumped storage power plants is proposed.Firstly,the improved K-means clustering algorithm is used to generate typical scenarios of renewable energy output prediction in each period.Then,based on the generalized renewable energy prediction deviation risk constraint and the generalized standby power systems abandonment risk constraint,the optimal renewable energy included in the reserve ratio coefficient of each typical scenario in each period is determined.Finally,according to the renewable energy forecast data of each period and the power generation support state of the pumped storage power plants,the optimal proportion coefficient of the renewable energy into the standby power systems is further regulated,and the renewable energy is reasonably incorporated into the standby power systems.The results of the example verify that the proposed method can effectively improve the renewable energy consumption capacity of the power system with high proportion of renewable energy and reduce the abandonment of renewable energy.
关键词
新能源/电力系统备用/抽水蓄能/K-均值聚类/风险约束
Key words
new energy/standby power systems/pumped-hydro energy storage/K-means clustering/risk constraints
维普
万方数据