摘要
随着我国电力事业的迅速发展,我国的电网网架结构趋于复杂化。为促进网架结构的进一步优化,通过对实际电网的分析,提出电网具有水电外送、负荷中心这2个功能属性。针对不同功能属性的特性,提出一种考虑经济性、水电外送、负荷中心功能属性的区域电网规划方法,包含线路建设费用、线路运行费用、水电外送盈利、系统阻塞系数、短路电流罚函数等目标函数及相关约束条件。利用MATLAB和PSD-BPA联合仿真求解的方法,对具有高属性水电外送、中属性负荷中心的某区域电网进行实例分析,结果表明,考虑功能属性优化模型的网架结构指标更优,能有效促进水电外送消纳、降低负荷中心短路电流水平。
With the rapid development of China’s power industry,the power grid structure tends to be complicated.In order to further optimize the grid structure,through the analysis of the actual grid,this paper proposed that the power grid had two functional attributes of hydropower tr ansmis s ion and load c ent e r.Ac cording to the characteristics of different functional attributes,a regional power grid planning method was proposed,which considered economy,hydropower transmission and load center functional attributes.It included objective functions and related constraints such as line construction cost,line operation cost,hydropower transmission profit,system blocking coefficient,and short-circuit current penalty function.MATLAB and PSD-BPA joint simulation method were used to analyze a regional power grid with high-attributed hydropower transmission and mediumattributed load center.The results show that the grid structure index of the optimization model considering the functional attribute is better,which can effectively promote the consumption of hydropower transmission and reduce the short-circuit current level of the load center.
作者
张童彦
唐飞
廖清芬
高鑫
ZHANG Tongyan;TANG Fei;LIAO Qingfen;GAO Xin(School of Electrical Engineering and Automation,Wuhan University,Wuhan 430072,Hubei Province,China)
出处
《发电技术》
2021年第6期741-750,共10页
Power Generation Technology
基金
国家自然科学基金项目(51977157)。
关键词
电网规划
功能属性
水电外送
负荷中心
power grid planning
functional property
hydropower transmission
load center
