摘要
随着新能源装机规模的不断扩大,提高新能源消纳水平和降低弃新能源率成为了新的挑战。准确评估电网中新能源消纳能力为新能源的规划和发展提供依据。首先根据输电网的特点,采用近似的方法将输电网潮流线性化。其次在传统时序生产模拟模型的基础上,加入了输电网潮流约束,提出了一种考虑输电网线性潮流约束的时序生产模拟模型,并建立了一种基于迭代法的关键时间断面选取策略,使得在时序生产模拟优化模型中仅考虑关键断面潮流约束即可满足全时段的潮流可行性,提高了时序生产模拟模型的求解效率。最后,以IEEE 30节点为标准算例,通过MATLAB和YALMIP调用CPLEX求解器求解模型,并对系统新能源年度消纳水平进行评估,仿真结果证明了该模型的准确性和可行性。
With the continuous expansion of renewable energy installation scale,it has become a new challenge to improve the level of renewable energy accommodation and reduce the rate of renewable energy abandonment.Accurate assessment of the capacity of renewable energy accommodation in the power grid may provide a basis for the plannning and development of renewable energy.Firstly,according to the characteristics of the transmission network,this paper uses an approximate method to linearize the power flow of the transmission network.Secondly,on the basis of the traditional time series production simulation model,this paper adds the power flow constraints of the transmission network,and proposes a time series production simulation model that considers the linear power flow constraints of the transmission network,and establishes a crucial time section selection strategy based on the iterative method.This makes it possible to meet the feasibility of the full-time power flow by considering only the crucial section power flow constraints in the time series production simulation optimization model,and improves the efficiency of solving the time series production simulation model.Finally,taking the IEEE 30 node as a standard example,the CPLEX solver is called through the MATLAB and the YALMIP to solve the model,and the annual renewable energy accommodation level of the system is evaluated.The simulation results prove the accuracy and feasibility of the model.
作者
朱俊澎
施凯杰
李强
于若英
夏俊荣
袁越
ZHU Junpeng;SHI Kaijie;LI Qiang;YU Ruoying;XIA Junrong;YUAN Yue(College of Energy and Electrical Engineering,Hohai University,Nanjing 211100,Jiangsu Province,China;State Grid Jiangsu Electric Power Research Institute,Nanjing 211103,Jiangsu Province,China;China Electric Power Research Institute,Nanjing 210003,Jiangsu Province,China)
出处
《电网技术》
EI
CSCD
北大核心
2022年第5期1947-1955,共9页
Power System Technology
基金
国家自然科学基金项目(51807051)
江苏省自然科学基金项目(BK20180507)
中央高校基本科研业务费项目(B200202164)。
关键词
时序生产模拟
新能源
消纳
潮流约束
关键时间断面
time series production simulation
renewable energy
accommodation
power flow constraints
crucial time section
