Research on Planning Technology of Integrated Wind-Solar-Thermal-Storage Energy Base

The integrated development of wind-solar-thermal-storage is highly coincided with the national energy development strategy. The penetration level of renewable energy power and electricity in large-scale integrated energy bases for wind-solar-thermal-storage has increased significantly. Wind and solar power output with strong uncertainty has brought great challenges to energy security at all time and space scales. This paper studies the planning problem of the integrated energy base of wind-solar-thermal-storage sent by UHVDC and considers the overall performance of the integrated operation of wind-solar-thermal-storage. Based on the multi-time scale echelon complementary idea, the integrated planning method of the large-scale integrated energy base of wind-solar-thermal-storage and its evaluation index are proposed. Through the continuous optimization of power supply installed ratio of the regional multi-energy complementary project, the renewable energy utilization rate, energy base regulation capacity, safe operation and economy of regional multi-energy complementary projects are comprehensively realized.