基于IEC标准的超高次谐波测量方法差异性分析  

Analysis on the difference of supra-harmonics measurement method based on IEC standard

作　　者：胡子珩 李艳 张华赢 汪伟 朱明星[2] 焦亚东[2] Hu Ziheng;Li Yan;Zhang Huaying;Wang Wei;Zhu Mingxing;Jiao Yadong(Shenzhen Power Supply Co.,Ltd.,Shenzhen 518000,Guangdong,China;School of Electrical Engineering and Automation,Anhui University,Hefei 230601,China)

机构地区：[1]深圳供电局有限公司,广东深圳518000 [2]安徽大学电气工程与自动化学院,合肥230601

出　　处：《电测与仪表》2022年第6期130-137,144,共9页Electrical Measurement & Instrumentation

基　　金：南网深圳供电局有限公司科技项目(090000KK52180063)。

摘　　要：电网中2 kHz~150 kHz频段超高次谐波引发的电磁兼容问题日益突出,但IEC标准尚未给出规范的测量方法,直接影响了相关电磁兼容的技术监督和管理。通过比较研究标准IEC 61000-4-7和IEC 61000-4-30对超高次谐波测量方法规定的差异与不足,提出适当的改进措施。然后,采用改进前后的测量方法对多类型典型信号进行仿真分析,从频谱泄露、聚合带宽以及幅值调制检测等角度研究不同测量方法之间差异所造成的影响。最后,通过实测数据综合评估各测量方法的效果,并给出应用建议,为2 kHz~150 kHz范围内超高次谐波测量的统一提供参考。he problem of electromagnetic compatibility caused by supra-harmonics in the frequency range of 2 kHz~150 kHz in the power grid is becoming increasingly prominent,but the relevant IEC standards have not yet given the standard measurement method,which directly affects the technical supervision and management of related electromagnetic compatibility.By comparing and studying the differences and shortcomings of the standards IEC 61000-4-7 and IEC 61000-4-30 on the measurement methods of supra-harmonics,this paper puts forward the appropriate improvement measures.Then,the improved measurement method is adopted to simulate and analyze the typical signals,and we study the influence of the difference between different measurement methods from the perspectives of spectrum leakage,aggregate bandwidth,and amplitude modulation detection.Finally,the effect of each measurement method is comprehensively evaluated by the measured data,and the application suggestions are given,which can provide a reference for the unified measurement of supra-harmonics in the range of 2 kHz~150 kHz.

关 键 词：IEC标准 超高次谐波 测量方法 差异性 

分 类 号：TM933[电气工程—电力电子与电力传动]