高压配电网无功补偿配置原则的优化  

Optimization of Reactive Power Configuration Principle in High Voltage Distribution Networks

作　　者：张勇军[1] 陈艳[1] 

机构地区：[1]华南理工大学电力学院∥广东省绿色能源技术重点实验室,广东广州510640

出　　处：《华南理工大学学报（自然科学版）》2014年第6期17-24,共8页Journal of South China University of Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(51377060);华南理工大学中央高校基本科研业务费专项资金资助项目(2013ZM0013)

摘　　要：按负荷和电网无功电压特性对高压配电网进行分类,针对不同类型采取差异化的无功补偿配置方案.以含小水电高压配电网为对象,提出综合考虑容/感性无功补偿配置的无功优化规划模型,以满足含小水电高压配电网不同的无功电压调控需求;运用"无功配置率"指标指导不同类型变电站无功补偿配置量的选择,并对该类配电网的容/感性无功配置原则进行了优化和细化.实例分析表明,按此原则来指导含小水电高压配电网的无功配置,可提高该类配电网电压调控和无功平衡能力,有助于降低网损,避免容性无功补偿过量配置导致的投资浪费.利用该方法,得出4种不同类型的高压配电网的无功配置率推荐范围,可作为高压配电网无功补偿配置的细化原则.In this paper, first, high voltage distribution networks are classified according to their load and reactive power characteristics, and different reactive power compensation configuration schemes are adopted for different kinds of networks. Then, by taking the high voltage distribution networks with small hydropower as the research objective, a model of reactive power planning considering the capacitive and inductive reactive power compensation configurations is proposed, which meets the demands of the reactive voltage control of high voltage distribution networks with small hydropower. Moreover, an index by the name of the reactive power configuration ratio is put forward to help select the reactive power compensation configuration for different types of substations, and the principles of capacitive and inductive reactive power compensation configurations are optimized and refined for the high voltage distribution networks. Cases analysis shows that these principles help to improve the ability of the voltage control and reactive power balance during the reactive power configuration, reduce the network loss, and avoid excessive investment of the capacitive reactive power compensation. In addition, with the help of the proposed method, the reactive power configuration ratios of four kinds of high voltage distribution networks are obtained, which can be used as detailed orinciples of the reactive oower compensation confiauration for high voltage distribution networks.

关 键 词：小水电 高压配电网 无功配置原则 容性无功补偿配置 感性无功补偿配置 

分 类 号：TM715[电气工程—电力系统及自动化]