摘要
为了在配电网无功优化配置中考虑到未来规划年的各种负荷分布,提出了基于负荷持续模型的10kV配电线路无功优化配置模型及算法;通过对历史日负荷持续曲线的聚类分析及选择合适算法,得到了各季节的代表日,对代表日的代表时刻又提出了相应的选择方法,从而提出了具有依据的配电网未来长期运行的代表断面负荷模型,并提供了等效运行时间计算方法。研究结果表明,该方法既避免了过于简单的负荷模型带来的决策质疑,也避免了复杂化负荷模型带来的繁重计算。该方法已在县级电网进行了应用,说明了其可行性与正确性。
In oder to consider the load variation for future planning years, in the the model and algorithm for 10 kV distribution line reactive optimal configuration based on load duration model were presented. By the cluster analysis of historic daily load duration curves, a calculation method for the representative day for all seasons together with a calculation method for the representative hour for the representative days, were presented to calculate the equivalent operation time. The reasearch results indicate that this method can make the load model much more practical and refined, and make the distribution line reactive configuration optimization to avoid the doubts by using simple data model, or the heavy calculation by adopting a very complicated load model. Real application has approved the feasibility and correctness of such modeling.
出处
《机电工程》
CAS
2014年第7期937-941,共5页
Journal of Mechanical & Electrical Engineering
关键词
配电网
无功优化配置
负荷持续模型
聚类分析
代表日等效运行时间计算
代表时刻等效运行时间计算
distribution network
reactive optimal configuration
duration load model
cluster analysis
calculation of equivalent operation time of representative day
calculation of equivalent operation time of representative hour
