电网设备线路负载利用率的指标评估模型  

Index Evaluation Model of Load Utilization for Power Grid Equipment

作　　者：李小伟 陶毅刚 于明 柴绍博 LI Xiao-wei;TAO Yi-gang;YU Ming;CHAI Shao-bo(Guangxi Power Grid Co.,Ltd.,Nanning,Guangxi 530023,China;Tianjin Tianda Qiushi Electric Power High Technology Co.,Led.,Tianjin 300384,China)

机构地区：[1]广西电网有限责任公司,广西南宁530023 [2]天津天大求实电力新技术股份有限公司,天津300384

出　　处：《计算技术与自动化》2020年第3期130-134,共5页Computing Technology and Automation

摘　　要：为提高电网设备线路负载利用率,提出了基于直流负荷特征检测的电网设备线路负载利用率指标评估模型。采用直流电压波动分析方法进行大数据采样,提取电网设备线路负载利用率的相关性指标,以线路负载的波峰、波谷以及电压谐波值等为约束指标参量,建立电网设备线路负载利用率指标评估的模糊约束参量分析模型;采用工频交流市电驱动和直流线性驱动方法评估指标参数,结合分布式电源功率波动、负荷不均衡变化等情况,实现电网设备线路负载利用率的指标评估。仿真实验表明,采用该方法进行电网设备线路负载利用率指标评估的准确性较高,提高了电网设备线路负载利用率,具有很好的电网设备线路的负载均衡调度能力。In order to improve the load utilization ratio of power network equipment,a load utilization index evaluation model based on DC load characteristic detection is proposed.DC voltage fluctuation analysis method is adopted for big data sampling,and correlation indexes of load utilization ratio of power network equipment lines are extracted.The fuzzy constraint parameter analysis model of load utilization ratio evaluation of power network equipment lines is established by taking the peak,trough and voltage har monic value of line load as constraint index parameters.The index parameters are evaluated by AC mains power drive and DC linear drive,and the index of load utilization rate of power network equipment is evaluated by combining the power fluctuation and load im balance of distributed power supply.The simulation results show that this method is accurate in evaluating the load utilization ratio of power network equipment lines,improves the load utilization ratio of power network equipment lines,and has good load balancing and dispatching capacity of power network equipment lines.

关 键 词：电网设备线路 负载利用率 指标评估 模型优化设计 

分 类 号：TM73[电气工程—电力系统及自动化]