用于获得低压配变每相电量数据的配电网仿真模型研究  

Study on the Simulation Model of Distribution Network for obtaining the Data ofElectric Quantity of Each Phase of LV Distribution Transformer

作　　者：彭青宁 白杨 刘旭涛 杨青 胡飞虎[2] Peng Qing-ning;Bai Yang;Liu Xu-tao;Yang Qing;Hu Fei-hu

机构地区：[1]国网陕西西咸新区供电公司,陕西西安712000 [2]西安交通大学,陕西西安710049

出　　处：《电力系统装备》2020年第11期198-200,共3页Electric Power System Equipment

摘　　要：用户相位识别等应用需要配变每日每相电量数据,但数据库并不存储该数据。利用配变每相每日96考核点的电压、电流和功率因数等数据,可以拟合生成该数据。为验证拟合数据的准确性,文章开展了相关的配电网仿真模型研究。首先根据实际配变每相电压、电流和功率因数的变化特点,进行负荷数据分析,得到这三类数据每日的变化规律、峰谷值和方差;之后,搭建了包括电源模块、变压器模块、线路模块、断路器模块、用户模块和测量模块的仿真电路,通过调整相关参数使仿真模型输出数据与实际数据相似;最后,根据仿真得到的数据,验证了利用配变每日96考核点的电压、电流和功率因数拟合配变每相每日电量具有较高的准确性,误差在1%以内。Some applications for example consumers’phase identifi cation,need daily electric quantity data of each phase in the distribution transformer,but the database does not store these data.By using the everyday 96 points data of voltage,current and power factor of each phase,daily electric quantity data of each phase can be generated by fi tting.In order to verify the accuracy of the fi tting data,this paper carried out the related distribution network simulation model research.Firstly,the paper analyses the load data,according to the changing characteristics of voltage,current and power factor of each phase,then obtain the daily change rule,peak valley value and variance of these three kinds of data.After that,the simulation circuit including power module,transformer module,circuit module,circuit breaker module,user module and measurement module is built.By adjusting the relevant parameters,the output data of simulation model is similar to the actual data.Finally,according to the simulation data,it is verifi ed that the 96 points data of voltage,current and power factor are used to fi t the daily electric quantity of each phase has high accuracy.And the error is within 1%.

关 键 词：负荷分析 配电网仿真 电量合成 

分 类 号：TM732[电气工程—电力系统及自动化]