煤矿电网谐波检测方法与治理方案  

Method of Harmonic Detection and Elimination in Coal Mine Power Network

作　　者：孙雪[1] 宋健[2] 李国亮[1] 夏文华[1] 刘建平[1] 

机构地区：[1]山东科技大学信息与电气工程学院,山东青岛266590 [2]山东电力集团公司基建部,山东济南250001

出　　处：《电子质量》2012年第2期11-14,共4页Electronics Quality

基　　金：山东科技大学研究生科技创新基金资助项目(YCA110213)

摘　　要：针对煤矿电网中高次谐波状况,设计出一种基于希尔伯特黄变换电网谐波检测的方法与治理方案。以煤矿6kV电网为例,用MATLAB软件建立串联联结的6脉冲整流电路模型模拟谐波,由控制芯片TMS320F2812完成电压电流信号采集,并根据希尔伯特边际谱得到各次谐波含量,将该谐波含量与换算国家标准对比,根据对比结果建立混合型有源滤波器模型模拟滤波,结果表明了该系统的有效性和可行性。Aiming at the problem of higher harmonic in power grid in coal mine power network,a harmonic detection method based on Hilbert transform and a new elimination method are designed in this paper.Taking a 6kV power grid for example,the simulation model of 6 pulse rectifier circuit is build by MATLAB.Use controller chip TMS320F2812 to complete Hilbert-Huang transform of both voltage and current signals.And then the content of harmonic is obtained from Hilbert spectrum.Compared it to national standard,the simulation model of hybrid active power filter is used to eliminate harmonic based on the results.The finally filtering results show that this system is effective and feasible.

关 键 词：谐波检测 谐波治理 TMS320F2812 希尔伯特黄变换 混合型有源滤波器 

分 类 号：TM711[电气工程—电力系统及自动化]