摘要
随着我国新能源大规模并网,利用水电的调峰能力进行水风光互补运行是实现新能源并网后安全稳定运行的重要途经,但提高调峰能力往往会影响水电的经济效益。为实现水电调峰能力与水风光互补系统经济性间的协调,构建以调峰-蓄能双目标为导向的水风光互补系统短期调度模型,选取电网剩余负荷过程方差最小化、调度周期末蓄能最大化为目标函数,运用NSGA-Ⅱ算法进行模型求解,进一步采用TOPSIS法对各方案进行评估并选出决策建议方案。以雅砻江下游梯级水电站群为例,丰、平、枯3种典型日的计算结果表明:(1)水电调峰能力与水风光互补系统经济性间存在明显的竞争关系。(2)所选方案对调峰-蓄能双目标均表现较好优化效果,有效实现调度过程中的多目标优化。该结果论证了模型的有效性,对平衡水电调峰能力与水风光互补系统经济性具有一定参考价值。
With the large-scale integration of new energy sources in China,leveraging the peak regulation capacity of hydropower to implement hydro-wind-solar complementary operation has emerged as a critical approach to ensure secure and stable grid operation after new energy integration.However,enhancing peak regulation capacity often compromises the economic benefits of hydropower.To balance the trade-off between hydropower peak regulation capability and the economic efficiency of the hydro-wind-solar complementary system,this study proposes a short-term optimal scheduling model for the hybrid system,aiming to minimize the variance of the remaining load process and maximize the stored energy at the end of the dispatch period.The model is solved using the NSGA-II algorithm,followed by the TOPSIS method to evaluate and select the recommended decision-making scheme.Case studies based on the cascade hydropower stations in the lower reaches of the Yalong River,considering three typical days(high-flow,average-flow,and low-flow periods),reveal that:①a distinct competitive relationship exists between hydropower peak regulation capacity and the economic efficiency of the complementary system;②the selected scheme effectively balances both peak regulation and energy storage objectives,satisfying multi-objective requirements during dispatch.The results validate the model's effectiveness and provide valuable insights for coordinating hydropower peak regulation capabilities with the economic performance of hydro-wind-solar complementary systems.
作者
张羽
李基栋
冯彬
伍建锋
黄炜斌
ZHANG Yu;LI Ji-dong;FENG Bin;WU Jian-feng;HUANG Wei-bin(College of Water Resources and Hydropower,Sichuan Agricultural Univ,Yaan 625014,Sichuan Province,China;College of Water Resources and Hydropower,Sichuan Univ,Chengdu 610051,Sichuan Province,China)
出处
《中国农村水利水电》
北大核心
2026年第3期234-239,共6页
China Rural Water and Hydropower
基金
四川省区域创新合作项目(2025YFHZ0281)
山区河流保护与治理全国重点实验室开放研究基金(SKHL2321)。
关键词
多能互补
调峰
蓄能最大
TOPSIS法
短期调度
multi-energy complementary
peak regulation
energy storage maximization
TOPSIS method
short-term scheduling
