摘要
建设含高比例新能源的新型电力系统是实现“双碳”目标的重要途径,刻画考虑多种不确定性因素的电网经济运行区间是支撑高渗透率新能源消纳的关键技术。因此,提出计及电网不确定性因素经济性影响的电网经济运行域(economic operating region,EOR)概念,圈定强不确定性环境下电网最优调度计划集合。在此基础上,以考虑新能源出力不确定性为例,构建适用于工程实际的凸包经济运行域数学模型,并提出基于双层迭代的求解算法。最后,分析凸包经济运行域的形态和物理内涵,证明凸包经济运行域相比于基于鲁棒优化的箱型经济运行域具有更好的经济性,验证了所提双层迭代算法的有效性和较好的适用性。
The construction of a new type of power system with a high proportion of renewable energy is an important means to achieve the“dual carbon”goals.Depicting the economic operating range of the power grid by considering various uncertain factors is the critical technology to support renewable energy consumption with a high penetration rate.Therefore,the concept of economic operating region(EOR)considering the economic impact of power grid uncertainty factors is proposed,and the optimal scheduling plan set under a strong uncertainty environment is delineated.On this basis,taking the uncertainty of renewable energy output as an example,a mathematical model of convex hull-economic operating region(CH-EOR)suitable for engineering practice is formulated,and a solution algorithm based on bilevel iteration is proposed.Finally,the shape and the physical connotation of the CH-EOR are analyzed.The comparison with the box-constrained economic operating region(BC-EOR)based on robust optimization proves that the CH-EOR has better economic performance,and the effectiveness and applicability of the proposed bilevel iteration algorithm are verified.
作者
徐华廷
江博游
冯斌
郭创新
万灿
姚建国
杨胜春
XU Huating;JIANG Boyou;FENG Bin;GUO Chuangxin;WAN Can;YAO Jianguo;YANG Shengchun(College of Electrical Engineering,Zhejiang University,Hangzhou 310027,Zhejiang Province,China;China Electric Power Research Institute,Nanjing 210003,Jiangsu Province,China)
出处
《中国电机工程学报》
EI
CSCD
北大核心
2023年第16期6288-6299,共12页
Proceedings of the CSEE
基金
国家电网有限公司科技项目(5400-202099286A-0-0-00)。
关键词
经济运行域
不确定性
高渗透率新能源
凸包
电网自动巡航
双层优化
economic operating region
uncertainty
high proportion of renewable energy
convex hull
automatic cruise of power grid
bilevel optimization
