基于Simulink和Ansys Icepak的单相智能物联电能表计量单元电热耦合仿真方法研究  

Research on Electrothermal Coupling Simulation Method of Single-Phase IOT Smart Meter Metering Unit Based on Simulink and Ansys Icepak

作　　者：袁瑞铭 李文文 庞富宽 郭皎 王晨 YUAN Ruiming;LI Wenwen;PANG Fukuan;GUO Jiao;WANG Chen(State grid jibei marketing service center(fund intensive center and metrology center),Beijing 102208,China)

机构地区：[1]国网冀北电力有限公司营销服务中心(资金集约中心、计量中心),北京102208

出　　处：《电器与能效管理技术》2022年第7期73-79,共7页Electrical & Energy Management Technology

基　　金：国家电网有限公司科技项目(5700-202114202A-0-0-00)。

摘　　要：智能物联电能表是一种复杂的电子系统,其计量精度会受到温度、负载、元器件参数等多种因素的影响,单纯的热模型无法满足对其仿真的精度要求。以某主流智能物联电能表为例,通过分析其模块原理,构建考虑温度影响的智能物联电能表计量单元电热间接耦合仿真模型,得到不同环境温度下智能物联电能表的温度场。经实验测定,电热耦合仿真比单独的热仿真的精度水平更高,仿真数据与实测数据间最大误差为2.2%,仿真精度较好。IOT smart meter is a complex electronic system,the measurement accuracy will be affected by temperature,load,component parameters,etc.There are complex electrical and thermal effects in the measurement unit of the IOT smart meter,which can affect the working state of the electronic system,and the simple thermal model cannot meet the accuracy requirements.A mainstream single-phase IOT smart meter is taken as an example.First,analyzing the metering principle.Then,using Simulink and Ansys Icepak to construct the electrical and thermal simulation model of the metering unit of the meter considering the influence of temperature.Finally,obtaining the temperature field of the smart meter under different ambient temperatures by using the electrothermal indirect coupling simulation method.The experiments show that the accuracy of electrothermal coupling simulation is higher than that of single thermal simulation,and the maximum error between the simulation data and the measured data is 2.2%,which is good.

关 键 词：智能电能表 热仿真 电热间接耦合 有限元 

分 类 号：TM933[电气工程—电力电子与电力传动]