摘要
我国电网负荷呈现多元化发展趋势,各类负荷时间及空间属性差距较大,基于各类负荷全时段、分时段峰谷互补特性,以及分布式电源、储能、电动汽车等柔性负荷的有序控制,研究电网负荷优化组合方法,对探索多元负荷与电网灵活互动的电网发展新模式有着重要意义。首先,分类分析了负荷峰谷波动特性,利用聚类分析法研究了复杂负荷构成中具有稳定峰谷特性的负荷分类,构建了垂直互补度、水平互补度、综合互补度等负荷互补度计算模型,提出了基于多元负荷的全时段、分时段峰谷互补优化组合方法;然后,基于分类负荷峰峰叠加和峰谷互补特性,考虑负荷空间维度,提出了负荷削峰、负荷互转互带优化提升策略;最后,仿真验证了策略的有效性,在一定程度上提高了配电网资产设备的利用率。
At present,the power grid load presents the diversified development trend,and the time and space attribute of each kind of load are quite different,and the orderly control of flexible loads such as distributed power supply,energy storage,electric vehicle,etc.,which is of great significance to explore a new mode of grid development with flexible interaction between multiple load and grid.Fistly,the load peak-valley fluctuation characteristics are classified and analyzed,and the load classification with stable peak-valley characteristics in complex load constitution is studied by using cluster analysis method,the calculation models of load complementarity such as vertical complementarity degree,horizontal complementarity degree and comprehensive complementarity degree are constructed,and proposed a peak-valley complementary optimization combination method in full-time and multi-time period for multiple loads.Secondly,based on the characteristics of peak-to-peak superposition and peak-to-valley complementation of classified load,and considering the dimension of load space,the optimal lifting strategy of load peak clipping and load switching is proposed.Finally,the effectiveness of the strategy is verified by simulation that the utilization ratio of distribution network assets and equipment is improved.
作者
郭玥
丁羽頔
崔凯
白宇
刘艳茹
GUO Yue;DING Yudi;CUI Kai;BAI Yu;LIU Yanru(State Grid Economic and Technoligical Research Institute Co.,Ltd.,Beijing 102209,China)
出处
《供用电》
北大核心
2024年第7期63-71,共9页
Distribution & Utilization
基金
国家电网有限公司科技项目(5100-202256019A-1-1-ZN)。
关键词
多元负荷
负荷分类
峰谷互补
互补度
供电优化
multiple load
load classification
peak-valley complementarity
complementarity degree
power supply optimization
