Optimized Operation of cascade reservoirs Considering Complementary Characteristics between wind and photovoltaic based on variational auto-encoder
The strong variations and uncertainties of high-penetration variable renewable energy sources(RESs)has greatly challenged the operation of power systems.Considering the rapid adjustability of hydropower to complement various RESs,in this paper,a coordinated optimization model is proposed for hydro-wind-solar integrated systems.Based on the variational auto-encoder,a scenarios generation method is proposed to capture the spatial-temporal complementary and fluctuant characteristics of wind and PV power with high model accuracy and low computational complexity.The detailed hydraulic and electrical relationship between cascade reservoirs are established to make full use of the controllable regulation capacity of cascade hydropower stations.With the linearization of the head-sensitive power generation and nonlinear water head,the optimization model is reformulated into a tractable mixed integer linear programming(MILP)formulation.A basin in Northwest China integrated with prolific wind and solar resources is selected for a case study.The computational experiments on actual data demonstrate the applicability of the proposed method.
Hongxuan Zhang Wei Hu Rui Yu Maolin Tang Lijie Ding
Department of Electrical Engineering,Tsinghua University,Beijing 100084,China Southwest Branch,State Grid Corporation of China,Chengdu 640041,China SiChuan Electric Power Research Institute,State Grid Corporation of China,Chengdu 640041,China
国际会议
2018 International Symposium on Water System Operations(ISWRSO 2018)(2018年水资源系统及调度国际研讨会)
北京
英文
1-7
2018-10-12（万方平台首次上网日期，不代表论文的发表时间）