单相双向计量多功能智能电能表设计  

Design of the Single Phase Smart Energy Meter with Multifunction for Bi-directional Metering

作　　者：李宁[1] 李建闽[2] 张建文[1] 宋俊皓 段辉江 荣宏[2] LI Ning LI Jianmin ZHANG Jianwen SONG Junhao DUAN Huijiang RONG Hong(State Grid Electric Power Research Institute of Xinjiang Electric Power Company, Urumqi 830011, China School of Electrical and Information Engineering, Hunan University, Changsha 410082, China)

机构地区：[1]国网新疆电力公司电力科学研究院,新疆乌鲁木齐830011 [2]湖南大学电气与信息工程学院,湖南长沙410082

出　　处：《自动化仪表》2017年第3期70-74,共5页Process Automation Instrumentation

摘　　要：智能电表、智能用电、供用电互动等技术既是坚强智能电网用电环节的基本组成部分,又是引导科学、合理、经济用电,达到节能减排目标的重要研究内容。针对智能电网中现代家居智能用电以及家庭微网发电的发展需求,提出了一种基于STM32F103微控制器,具有双向电能计量、多参数测量和防窃电等多种功能的单相智能电能表设计方案。介绍了电能表的系统构成,重点分析了电流、电压信号采集电路、双向电能计量单元硬件电路设计,详细论述了基于两个电流互感器、一个电压互感器的高精度防窃电功能设计,简要介绍了系统的软件设计,给出了电能表的误差分析和纯软件形式的校表方式。该单相多功能双向计量智能电能表成本低、功能强。国网新疆电力公司的实际应用证明了该电能表的准确性与可靠性。Technologies of smart meters,intelligent utilizing of electricity,and the interaction of intelligent power supplying and utilizing are both the basic components of electricity link in strong smart grid and an important research content for leading scientific, reasonable, and economic power utilization;and achieving the goal of energy conservation and emissions reduction. In accordance with the development demands for smart grid, including intelligent power utilizing of modern household and the home micro - grid generation, the design scheme of single - phase smart energy meter based on STM32FI03 micro controller is proposed. This energy meter features bi - directional energy metering, multi - parameter measurement, stealing electricity prevention, and many other functions. The systematic composition of the energy meter is introduced, and the circuit design of the current and voltage signal sampling circuits and the bi - directional energy metering unit are emphasized. In addition, the design of high precision stealing electricity prevention circuit based on two current transformers and one voltage transformer is described in detail. The software design of the system is briefly introduced ,the error analysis of the electric energy meter and the calibration method in the form of pure software are given. The single - phase smart energy meter with multiple functions for bi - directional metering is low cost but offers powerful functions. Its application in Xinjiang electric power company of the State Grid validates the correctness and reliability of the meter.

关 键 词：能源 分布式电源 智能电网 智能电表 计量 电路 误差校正 

分 类 号：TH71[机械工程—测试计量技术及仪器]