电器与能效管理技术 ›› 2022, Vol. 0 ›› Issue (7): 73-79.doi: 10.16628/j.cnki.2095-8188.2022.07.012

• 仿真技术应用 • 上一篇    下一篇

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

袁瑞铭, 李文文, 庞富宽, 郭皎, 王晨   

  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
  • 收稿日期:2022-05-16 出版日期:2022-07-30 发布日期:2022-09-16
  • 作者简介:袁瑞铭(1974—),男,教授级高级工程师,主要从事电能计量技术研究。|李文文(1989—),女,高级工程师,主要从事电能计量技术研究。|庞富宽(1987—),男,高级工程师,主要从事电能计量技术研究。
  • 基金资助:
    国家电网有限公司科技项目(5700-202114202A-0-0-00)

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

YUAN Ruiming, LI Wenwen, PANG Fukuan, GUO Jiao, WANG Chen   

  1. State grid jibei marketing service center (fund intensive center and metrology center), Beijing 102208, China
  • Received:2022-05-16 Online:2022-07-30 Published:2022-09-16

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。

关键词: 智能电能表, 热仿真, 电热间接耦合, 有限元

Abstract:

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.

Key words: smart meter, thermal simulation, electrothermal indirect coupling, finite element

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