智能电能表抗电快速瞬变脉冲群干扰的研究  

Electrical Fast Transient Burst Immunity of Smart Electricity Meter

作　　者：江剑峰[1] 朱彬若[1] 

机构地区：[1]上海市电力公司电力科学研究院,上海200437

出　　处：《华东电力》2013年第10期2074-2078,共5页East China Electric Power

摘　　要：为了能够准确地分析电快速瞬变脉冲群(EFT/B)对智能电能表的影响,本文从电能表控制电路供电电源耦合的角度出发,在分析了电快速瞬变脉冲群产生原理的基础上,通过对电快速瞬变脉冲单个波形的数学解析表达式拉普拉斯变换,建立了其无源电综合网络。同时,在EFT/B骚扰对于电能表的共模影响和差模影响方面进行了探索性的定量研究,指出了电能表内部电子元件的敏感参数和抗扰措施。最后利用MATLAB建立了干扰源发生器模型,并利用此模型对智能电能表内部控制电路供电电源进行了EFT/B骚扰仿真。仿真实验表明理论研究的正确性,为工程实践中滤波器的设计提供了一定的理论依据。In attempt to analyze the influence of electrical fast transient burst （EFTB） on smart electricity meter accurately, this paper researches EFTB immunity of smart electricity meter from the perspective of power source coupling for control circuit of electricity meter. On the basis of the analysis on the generating principle of EFTB, the passive integrated network of EFTB was established by the means of doing the Laplace transform of EFT math equation.Meanwhile a quantitative study on the common mode influence and differential mode influence of EFTB on electricity meter is conducted innovatively. Thereupon, the sensitive parameter and the suppression method are presented. Finally the interference source model is established to simulate the EFTB test. The results prove the conrrectness of the theoretical study, which provides the theoretical basis for EMI filter designing.

关 键 词：电快速瞬变脉冲群 智能电能表 电综合网络 控制电路供电电源 

分 类 号：TM938[电气工程—电力电子与电力传动]