摘要
为了解决可再生能源大规模并网而引起的电力系统调峰难度增大的问题,根据调峰补偿和分摊,提出一种考虑调峰主动性的梯级水光互补与火电耦合系统经济调度模型。针对多能源耦合系统复杂问题的求解,文中采用分层调度的思想,上层以净负荷波动最小为目标,考虑梯级水电站约束,建立梯级水光互补优化调度模型,并借助帝王蝶优化算法对模型进行求解;下层根据上层的调度结果以系统总调峰成本最小为目标,建立考虑火电深度调峰煤耗特性的经济调度模型,并通过MATPOWER中的MOST工具包以及CPLEX求解。以改进的IEEE30节点系统进行仿真,结果表明,所提模型能有效提升系统运行经济性与稳定性。
To overcome the increasing peak-regulating difficulty of the power system after a great amount of renewable energy is connected to the grid,a model of the coupling system for cascade hydro-photovoltaic and thermal power(CHPTS)is proposed based on the analysis of peak-regulating compensation and apportionment in this paper.For the purpose of solving the difficulty of the multi-energy coupling system,by adopting the idea of hierarchical scheduling,the paper takes the minimum net load fluctuation as the objective function,and a complementary scheduling model of cascade hydro-photovoltaic is established considering the coupling constraints of cascade hydropower stations,and the model is solved using the Monarch Butterfly Optimization Algorithm(MBO)in the upper model.In the lower model,according to the results of the upper model,with the minimum operating cost of the total system dispatching as the objective,considering the coal consumption characteristics for deep peak-regulating of thermal power units,an economic dispatch model is established and is solved using MOST toolkit in MATPOWER and CPLEX solver according to the results from upper model.Taking the modified IEEE 30-bus system as an example,the simulation results demonstrate that the proposed model can be capable of effectively improving the operating economy and stability of the system,verifying the effectiveness of the model.
作者
罗经馨
陈庆超
黄秋立
LUO Jingxin;CHEN Qingchao;HUANG Qiuli(School of Electrical Engineering,Guizhou University,Guiyang 550025,Guizhou,China)
出处
《电网与清洁能源》
北大核心
2021年第5期106-114,122,共10页
Power System and Clean Energy
基金
贵州省普通高等学校科技拔尖人才支持计划项目(2018036)
贵州省科学技术基金项目(黔科合基础[2019]1100)。
关键词
调峰主动性
梯级水光互补
MBO
深度调峰煤耗特性
MATPOWER
peak-regulating initiative
complementary of cascade hydro-photovoltaic
MBO
deep peak-regulating coal consumption characteristic
MATPOWER
