|
|
|
| Research on Integrated Decoupling Network of EMS Online Testing System for Electric Energy Meter |
| LIU Jian-bo1, YANG Mei1, LI Wen-qiang1, MA Xue-feng1, YAN Hong-rui1, ZHAO Yan2 |
1.Shandong Institute of Metrology, Jinan, Shandong 250014, China
2.Shandong Quality Certification Center, Jinan, Shandong 250014, China |
|
|
|
|
Abstract Aim at EMS tests for electronic power meter , which need disturbance resistance of electric fast transient pulse group, conduction disturbance resistance, conduction disturbance resistance etc., electrical meter verification device even can’t work properly due to interference. By designing a wide frequency voltage decoupling network and a current decoupling circuit, and a non-contact error module, a method to suppress the interference signal of EMS test was proposed. Complying by common mode high-frequency LC decoupling circuit, common mode mid-frequency LC decoupling circuit, differential mode LC decoupling circuit, secondary common mode high-frequency LC decoupling circuit, to improve the anti-jamming capabilities of voltage lines, current circuits and auxiliary signal lines which belongs to power meter verification devices, the stability of which is enhanced. The experimental results showed that the EMS anti-interference ability was improved significantly after adopting the decoupling network.
|
|
Received: 25 July 2019
|
|
|
|
|
|
1 钱照明, 陈恒林. 电力电子装置电磁兼容研究最新进展［J］. 电工技术学报, 2007, 22 (7): 1-11. QianZ M, ChenH L.State of Art of Elec-tromagnetic Compatibility Research on Power Electronic Equipment［J］. Transactions Of China Electrotechnical Society, 2007, 22 (7): 1-11.
2 顾臻, 张垠, 王新刚, 等. 电子式电能表的电快速瞬变脉冲群抗扰度试验方法的改进［J］. 华东电力, 2014, 42 (7): 1362-1365. GuZ, ZhangY, WangX G, et al. Improv-ement of Electrical Fast Transient Burst Immunity Testing Method for Electronic Energy Meter［J］. East China Electric Power, 2014, 42 (7):1362-1365.
3 刘慧敏, 刘毅. 电子式电能表电快速瞬变脉冲群抗扰度试验方法探讨［J］. 电测与仪表, 2010, 47 (8): 12-15. LiuH M, LiuY. Discussion on Electronic Energy Meter's Fast Transient Burst Immunity Testing Methods［J］. Electrical Measurement & Instrumentation, 2010, 47 (8): 12-15.
4 周韶园, 章雪生, 郑荐中, 等. 多功能电能表抗电快速瞬变脉冲群综合抑制方法应用研究［J］. 电测与仪表, 2015, 52(15): 8-13. ZhouS Y, ZhangX S, ZhengJ Z, et al.Research on comprehensive method of electrical fast transient burst interference suppression of multi-function energy meter［J］. Electrical Measurement & Instru-mentation, 2015, 52(15): 8-13. |
|
|
|
2019, Vol. 40 
