Electric Power ›› 2021, Vol. 54 ›› Issue (2): 90-97.DOI: 10.11930/j.issn.1004-9649.202004192

Previous Articles     Next Articles

Global Reserve Optimization Method Considering Resources and Output Characteristics of Renewable Energy

CAI Qian1, WANG Jing2, GENG Tianxiang1, LI Feng3, MA Tiandong1   

  1. 1. State Grid Ningxia Electric Power Co., Ltd., Yinchuan 750001, China;
    2. China Electric Power Research Institute (State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems), Beijing 100192, China;
    3. State Grid Ningxia Electric Power Research Institute, Yinchuan 750001, China
  • Received:2020-04-23 Revised:2020-05-21 Published:2021-02-06
  • Supported by:
    This work is supported by Science and Technology Project of State Grid Ningxia Electric Power Co., Ltd. (Research and Development of Simulation Technology and Platform for Renewable Energy Accommodation Production under Market Environment, No.5229NX17000J)

Abstract: A global reserve optimization technology based on trans-regional UHVDC transmission channels was presented, which takes into account the complementary characteristics and the predicted output characteristics of renewable energy resources. Firstly, the correlation and complementary characteristics of renewable energy resources in China were analyzed, and the feasibility of complementary operation of overall resources in different regions was studied. Then, a real-time reserve optimization technology based on statistical characteristics of renewable energy prediction was proposed, and a trans-regional global reserve optimization technology based on time series production simulation method was established. Finally, taking “Three North” regions as an example, the case study of global reserve optimization considering the complementary characteristics of regional resources was carried out. The case results show that the method proposed in this paper optimizes the startup mode of conventional thermal power units, and can realize the reasonable optimization of real-time reserve, promote the accommodation of renewable energy, and improve the overall operation efficiency of the power grid.

Key words: renewable energy, reserve, accommodation, forecast, global, optimization