220kV地区电网无功负荷及其预测研究  

Study on Reactive Power Load and its Prediction in 220 kV Regional Power Network

作　　者：覃芸 陈艳[2] 左郑敏 孙舒逸 黄春艳 李钦豪[2] 

机构地区：[1]广东电网发展研究院有限责任公司,广东广州510080 [2]华南理工大学电力学院,广东广州510640 [3]广州市奔流电力科技有限公司,广东广州510640

出　　处：《电力电容器与无功补偿》2016年第4期62-67,共6页Power Capacitor & Reactive Power Compensation

基　　金：国家自然科学基金资助项目(51377060)

摘　　要：通过对220 kV地区电网无功负荷进行分类,提出四个评估指标以表征四类无功负荷与有功负荷的关系。基于相同运行方式下无功负荷指标的稳定特性提出一种无功负荷预测方法。选取某电网的重负荷地区和含源地区作为典型算例,结果表明,所提的各项指标能反映不同地区电网在不同运行方式下无功负荷分布特性的差异。用六个220 kV地区电网2011~2013年夏大方式的无功负荷指标预测2014年的无功负荷,将预测结果与实际的无功负荷进行误差分析,结果表明所提的预测方法具有良好的预测效果,这为无功优化规划提供了有力的数据支撑。In this paper,four evaluation indexes are proposed to represent the relation between four types of reactive and active power load by way of reactive power load classification of 220 V regional power network. A kind of method of reactive power load predication is proposed based on the stability characteristic of reactive power load index in the same operational mode. The heavy load region and region with power supply of grid is selected typical calulation example. It is shown by the result that each propo- sed index can reflect the difference of reactive power load distribution feature of different regionas at different operation mode. The reactive power load of 2014 is predicted by the use of reactive power load index of six regional grid at 220 kV during 2011 to 2013 in summer mode. The error analysis of prediction results and the actual reactive power load is made. It is shown by the result that the proposed prediction method has good prediction resuh,which provides strong data support to the reactive power optimization planning.

关 键 词：无功负荷 分布特性 运行方式 地区 评估指标 无功负荷预测 

分 类 号：TM715[电气工程—电力系统及自动化]