摘要
提出一种考虑新能源资源互补特性及预测出力特性、基于跨区特高压直流联络线的全局备用容量优化技术。首先,分析中国新能源资源的相关及互补特性,研究不同区域整体资源互补运行的可行性;然后,提出基于新能源预测统计特性的系统实时备用容量优化方法,建立基于时序生产模拟方法的跨区域全局备用容量优化技术;最后,以"三北"地区为例,开展考虑区域资源互补特性的全局备用容量优化案例分析。算例结果表明:所提方法优化了常规火电机组的开机方式,可实现系统实时备用的合理优化、促进新能源消纳、提升电网整体运行效益的目标。
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.
作者
蔡乾
王晶
耿天翔
李峰
马天东
CAI Qian;WANG Jing;GENG Tianxiang;LI Feng;MA Tiandong(State Grid Ningxia Electric Power Co.,Ltd.,Yinchuan 750001,China;China Electric Power Research Institute(State Key Laboratory of Operation and Control of Renewable Energy&Storage Systems),Beijing 100192,China;State Grid Ningxia Electric Power Research Institute,Yinchuan 750001,China)
出处
《中国电力》
CSCD
北大核心
2021年第2期90-97,共8页
Electric Power
基金
国网宁夏电力有限公司科技项目(市场环境下新能源消纳生产模拟技术及平台研发,5229NX17000J)。
关键词
新能源
备用
消纳
预测
全局
优化
renewable energy
reserve
accommodation
forecast
global
optimization
