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工程设计学报
工程设计学报  2018, Vol. 25 Issue (1): 56-61    DOI: 10.3785/j.issn.1006-754X.2018.01.008
保质设计     
基于自适应频率跟踪的基波提取算法应用研究
汪应龙1, 刘爱莲1, 翟少磊2, 朱全聪2, 顾红波3, 李川1
1. 昆明理工大学 信息工程与自动化学院, 云南 昆明 650500;
2. 云南电网有限责任公司 电力科学研究院, 云南 昆明 650217;
3. 南京丹迪克电力仪表有限公司, 江苏 南京 210049
Research on application of fundamental wave extraction algorithm based on adaptive frequency tracking
WANG Ying-long1, LIU Ai-lian1, ZHAI Shao-lei2, ZHU Quan-cong2, GU Hong-bo3, LI Chuan1
1. College of Information Engineering and Automation, Kunming University of Science and Technology, Kunming 650500, China;
2. Electric Power Research Institute, Yunnan Power Grid Limited Liability Corporation, Kunming 650217, China;
3. Nanjing Dandick Electric Instrument Company Limited, Nanjing 210049, China
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摘要：

为了消除基波提取中频谱泄露和栅栏效应的影响，实现快速准确地提取基波分量，完成校验仪比差、角差的精确计算，在互感器校验仪自动检定系统中采用基于自适应频率跟踪的基波提取算法来完成基波提取。在互感器校验仪自动检定系统自动检定的过程中，待检校验仪采集检定装置输出的信号并提取信号的基波分量，计算出比差、角差值。系统上位机对计算结果进行比较分析，判定出该待检校验仪对互感器的检定效果。仿真实验表明，该基波提取算法可以稳定地跟踪频率缓变，跟踪误差控制在0~0.02 Hz之间；该检定系统对比差和角差的检定精度分别达到0.002 8%和0.012%，即系统检定精度可以达到0.05级。检定结果表明该算法可以实时跟踪和记录电网频率为50，50.5 Hz时的微小波动状况，同时克服因波动引起的基波频率缓变，从而大大提高基波分量提取的准确性。研究结果表明该基波提取算法在互感器校验仪检定工作中具有一定的有效性和实用性。
关键词： 互感器校验仪自动检定系统;  自适应频率跟踪;  频率缓变;  比差;  角差;  检定精度    
Abstract:

In order to eliminate the influence of spectrum leakage and fence effect on the fundamental wave extracting, extract the fundamental component quickly and accurately, and finish the accurate calculation of the ratio difference and the angle difference, the fundamental wave extraction algorithm based on adaptive frequency tracking was used in the transformer calibrator automatic verification system to extract the fundamental component. In the automatic verification process, the calibrator checked the output signal of the verification device and extracted the fundamental component of the signal, then calculated the ratio difference and the angle difference. The system PC compared the calculated results to determine the verification effect of the transformer calibrator. The simulation experiment showed that the fundamental wave extraction algorithm based on adaptive frequency tracking could steadily track the frequency which changed slowly and the tracking error could be controlled between 0 to 0.02 Hz. The test accuracy of the ratio difference and the angle difference with the algorithm could reach 0.002 8% and 0.012% respectively, so the system calibration accuracy could reach 0.05 level. The test results indicated the algorithm could track and record the fluctuation of the grid frequency at 50, 50.5 Hz in real time, and overcome the fundamental frequency of the fundamental frequency caused by the fluctuation, which greatly improve the accuracy of the fundamental component extraction. The research results show that the fundamental wave extraction algorithm has a certain effectiveness and practicability in the verification of the transformer calibrator.
Key words: transformer calibrator automatic verification system    adaptive frequency tracking    frequency changed slowly    ratio difference    angle difference    test accuracy
收稿日期: 2017-07-25 出版日期: 2018-02-28
CLC:  TH7  
基金资助:

国家自然科学基金资助项目（51567013）；中国南方电网有限责任公司科技项目（YNKJXM00000245）
通讯作者: 李川(1976-),男,云南昆明人,教授,博士生导师,博士,从事光纤传感器及其信号处理研究,E-mail:1570907950@qq.com     E-mail: 1570907950@qq.com
作者简介: 汪应龙(1993-),男,安徽安庆人,硕士生,从事信号处理和测试计量研究,E-mail:wangyl_9309@163.com,http://orcid.org/0000-0001-7605-269X
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引用本文:

汪应龙, 刘爱莲, 翟少磊, 朱全聪, 顾红波, 李川. 基于自适应频率跟踪的基波提取算法应用研究[J]. 工程设计学报, 2018, 25(1): 56-61.

WANG Ying-long, LIU Ai-lian, ZHAI Shao-lei, ZHU Quan-cong, GU Hong-bo, LI Chuan. Research on application of fundamental wave extraction algorithm based on adaptive frequency tracking. Chinese Journal of Engineering Design, 2018, 25(1): 56-61.

链接本文:

https://www.zjujournals.com/gcsjxb/CN/10.3785/j.issn.1006-754X.2018.01.008    或    https://www.zjujournals.com/gcsjxb/CN/Y2018/V25/I1/56

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