基于时变电流注入方法的特殊电力负荷建模研究  

Modeling of special power load based on time-varying current injection method

作　　者：陈大宣[1] 余一平[1] 鞠平[1] 黄永宁 张爽 

机构地区：[1]河海大学能源与电气学院,江苏南京210098 [2]宁夏电力科学研究院,宁夏银川750011

出　　处：《电力自动化设备》2014年第3期120-124,共5页Electric Power Automation Equipment

基　　金：国家高技术研究发展计划(863计划)项目(2011AA-05A103);国家自然科学基金资助项目(51207046);国家重点基础研究发展计划(973计划)项目(2013CB228204);国家电网公司大电网重大专项资助项目(SGCC-MPLG001(001-031)-2012)~~

摘　　要：特殊电力负荷对电力系统稳定性、电能质量以及对电力设备安全性都有较大影响,建立合适的特殊电力负荷模型对电力系统的分析十分必要。以电弧炉负荷实测数据为例,分析了特殊电力负荷的自变特性。基于PSASP的用户程序接口(UPI)功能和自定义程序,采取时变电流注入的特殊电力负荷建模方法;通过电气换算,将不同电气特性负荷以注入电流形式建立模型。根据宁夏地区某硅铁负荷的实测数据建立负荷模型,仿真曲线和实测数据的对比分析验证了所建模型的有效性和可行性。As special power load exerts large impact on the stability of power system,the power quality and the safety of power equipment,its suitable modeling is essential in power system analysis.With the measured data of ferrosilicon load as an example,the self-varying characteristics of special power load are analyzed.Based on the UPI function of PSASP and user program,the time-varying current injection method is adopted in the modeling of special power load,which represents different electrical characteristics of load in the form of injection currents by circuit calculation.The model of the ferrosilicon load of a region in Ningxia is built according to its measured data,the comparison between simulative curves and measured data verifies the effectiveness and feasibility of the established model.

关 键 词：特殊负荷 建模 实测数据 时变电流注入 电力负荷 

分 类 号：TM714[电气工程—电力系统及自动化]