基于FIR-MSMA的配电网测频算法  

Frequency Measurement Algorithm for Distribution Network Based on FIR-MSMA

作　　者：张明帅 郭志全 夏炜 李波 唐旭明 王莹康 ZHANG Mingshuai;GUO Zhiquan;XIA Wei;LI Bo;TANG Xuming;WANG Yingkang(Huainan Power Supply Company,State Grid Anhui Electric Power Co.,Ltd.,Huainan 232007,Anhui Province,China;C-EPRI Electric Power Engineering Co.,Ltd.,Changping District,Beijing 102200,China;NARI Group Corporation(State Grid Electric Power Research Institute Co.,Ltd.),Nanjing 211106,Jiangsu Province,China)

机构地区：[1]国网安徽省电力有限公司淮南供电公司,安徽省淮南市232007 [2]中电普瑞电力工程有限公司,北京市昌平区102200 [3]南瑞集团公司(国网电力科学研究院有限公司),江苏省南京市211106

出　　处：《分布式能源》2024年第1期72-79,共8页Distributed Energy

基　　金：国网安徽省电力有限公司淮南供电公司科技项目(B312F0230006)。

摘　　要：针对配电网中含有谐波、带外干扰及其他严重干扰的同步相量测量问题,提出一种基于有限冲击响应滤波器和M类同步相量测量算法(finite impulse response-M synchrophasor measurement algorithm, FIR-MSMA)相结合的配电网测频算法。该方法利用最小二乘法设计出FIR-1滤波器提取低频信号,在此基础上利用设计的FIR-2滤波器实现频率测量的目的,并分析2种滤波器参数设定的原则。利用Matlab软件编制算法仿真程序,验证所提算法的动态测量性能。结果表明,相比于基于离散傅里叶变换的算法和基于滑动平均滤波器的算法,基于FIR-MSMA的算法具有更强的抗干扰能力和更高的测量精度。Aiming at the problem of synchrophasor measurement with harmonics,out-of-band interference,and other dynamic interferences,a new frequency measurement algorithm combining a finite impulse response filter with M-class synchrophasor measurement algorithm(FIR-MSMA)is proposed for distribution networks.Firstly,the least squares method is utilized to design a FIR-1 filter for extracting the low-frequency signals,and to design a FIR-2 filter for measuring frequency.Then,the parameter setting principles for two types of filters are analyzed.Finally,simulation examples in Matlab software are performed to verify the dynamic measurement performance of the proposed algorithm.The results show that the FIR-MSMA algorithm has stronger anti-interference ability and higher measurement accuracy than the discrete Fourier transform algorithm and the sliding average filter algorithm.

关 键 词：配电网 同步测量单位 频率测量 有限冲激响应滤波器 频率误差 

分 类 号：TK01[动力工程及工程热物理] TM71[电气工程—电力系统及自动化]