电力系统及其自动化学报2019，Vol.31Issue(4)：32-38,7.DOI:10.19635/j.cnki.csu-epsa.000098
基于实测数据的负荷频率参数辨识及影响分析
Frequency Parameter Identification and Impact Analysis of Load Based on Measured Data
摘要
Abstract
In a receiving power grid with ultra-high voltage direct current,the block fault in an inverter station may cause large frequency fluctuations,in which the frequency characteristics of load play an important role in the frequen?cy response of the system. First,the frequency characteristics of new types of load equipment with power electronic in?terface are analyzed,and the trend of frequency characteristics of the total load is studied under the assumption that the proportion of this type of load equipment increases continuously. Then,based on the measured data from East-China power grid under DC block fault,the frequency models of load on the bus and the whole grid are fitted,respectively, and it is concluded that the frequency response characteristics of the total load are becoming weaker. Finally,the mea?surement model and the original model are compared and simulated with East-China power grid as a numerical exam?ple,which verifies that the original load frequency model is prone to be optimistic.关键词
负荷模型/频率特性/静态模型/闭锁故障/特高压直流Key words
load model/frequency characteristic/static model/block fault/ultra-high voltage direct current分类
信息技术与安全科学引用本文复制引用
臧晓明,陈谦,闪鑫,余方召,徐卓林,鞠平..基于实测数据的负荷频率参数辨识及影响分析[J].电力系统及其自动化学报,2019,31(4):32-38,7.基金项目
国家重点研发计划智能电网技术与装备重点专项资助项目(2016YFB0900600) （2016YFB0900600）
