摘要
现有直流电能表多针对直流稳态电能进行计量,对充电过程中电压、电流变化适应性较差,且忽略功率脉动及高频纹波产生的功率。为此,通过研究整流性负载、开关充电设备以及快速动态变化负荷的直流电能产生原理,结合电能表计量算法和实验阐述了计量过程中存在的误差影响,提出了不同计量场合下减少计量误差的算法参数优化方法。为电能计量精度的提高提供参考,为直流计量算法的优化提供思路,明确改进方向。
Most of the existing DC electricity meters are used to measure the DC steady-state energy,which has poor adaptability to the change of voltage and current during the charging process,and ignores the power generated by power fluctuation and high-frequency ripple.Therefore,by studying the principle of DC electric energy generation of rectifier load,switch charging equipment and fast dynamic load,combining with the metering algorithm and experiment of electricity meter,this paper expounds the error influence in the metering process,and puts forward the optimization method of calculation parameters to reduce the metering error in different metering occasions,which can provide reference for improving the accuracy of electric energy metering in different measurement occasions,provide ideas for the optimization of DC metering algorithm,and clarify the direction of improvement.
作者
宋晓林
马烨
孙刚
裴晓元
骆一萍
曾翔君
Song Xiaolin;Ma Ye;Sun Gang;Pei Xiaoyuan;Luo Yiping;Zeng Xiangjun(Electric Power Research Institute of State Grid Shaanxi Electric Power Company,Xi’an 710054,China;School of Electrical Engineering,Xi’an Jiaotong University,Xi’an 710049,China)
出处
《电测与仪表》
北大核心
2023年第5期180-185,200,共7页
Electrical Measurement & Instrumentation
基金
国网陕西省电力公司资助项目(5226KY180026)。
关键词
直流电能计量
直流充电
误差
计量算法
DC electric energy metering
DC charging
error
metering algorithm
