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计量学报  2023, Vol. 44 Issue (5): 750-757    DOI: 10.3969/j.issn.1000-1158.2023.05.12
  电磁学计量 本期目录 | 过刊浏览 | 高级检索 |
零线断接对三相四线电能表计量影响机理分析
刁瑞朋1,王强1,卢志俊2
1.青岛鼎信通讯股份有限公司,山东 青岛 266109
2.金华电力设计院有限公司,浙江 金华 321001
Mechanism of the Disconnection of the Neutral Wire on the Measurement of the Three-phase Four-wire Electric Energy Meter
DIAO Rui-peng1,WANG Qiang1,LU Zhi-jun2
1. Qingdao Topscomm Communication Co., Ltd, Qingdao, Shandong 266109, China
2. Jin Hua Electric Power Design Institute CO., Ltd, Jinhua, Zhejiang 321001, China
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摘要 针对三相四线线性电源电能表在断接零线的情况下,存在相电压计量值偏高导致计量误差的问题,从三相电路的工作过程出发,探究了电能表零线端子电位漂移的变化规律。从理论上分析了三相四线电能表在零线断接情况下计量电压偏高的原因,并通过仿真和实验验证了理论分析的准确性,提出了一种监测零线电流的方法来识别零线断接,为识别零线断接、提高计量准确性提供了充分的理论支撑。
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刁瑞朋
王强
卢志俊
关键词 计量学零线断接识别零点漂移相电压畸变三相四线电能表计量误差    
Abstract:To solve the problem that the phase voltage measurement value is higher than actual value and the measurement error are caused when the neutral line is disconnected for the three-phase four-wire linear power meter. The changing law of the potential drift of the neutral terminal of the electric energy meter from the working process of the three-phase circuit is explored, and the cause of the three-phase four-wire electric energy meter in the neutral line disconnection is analyzed theoretically. The reason is verified to verify the accuracy of the theoretical analysis by simulation and experiment, and a method of neutral line current monitoring is proposed to identify the disconnection of the neutral line, which provides a sufficient theoretical basis for identify the disconnection of the neutral line and improving the accuracy of measurenment.
Key wordsmetrology    neutral line disconnection identification    zero drift    phase voltage distortion    three-phase four-wire electric energy meter    measurement error
收稿日期: 2021-08-16      发布日期: 2023-05-18
PACS:  TB971  
作者简介: 刁瑞朋(1982-),男,山东烟台人,青岛鼎信通讯股份有限公司博士研究生,研究方向为频谱校正、机械系统故障诊断。Email: diaoruipeng@topscomm.com
引用本文:   
刁瑞朋,王强,卢志俊. 零线断接对三相四线电能表计量影响机理分析[J]. 计量学报, 2023, 44(5): 750-757.
DIAO Rui-peng,WANG Qiang,LU Zhi-jun. Mechanism of the Disconnection of the Neutral Wire on the Measurement of the Three-phase Four-wire Electric Energy Meter. Acta Metrologica Sinica, 2023, 44(5): 750-757.
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http://jlxb.china-csm.org:81/Jwk_jlxb/CN/10.3969/j.issn.1000-1158.2023.05.12     或     http://jlxb.china-csm.org:81/Jwk_jlxb/CN/Y2023/V44/I5/750
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