Suzhou Electric Appliance Research Institute
期刊號: CN32-1800/TM| ISSN1007-3175

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基于IEC 61850-9-2的數(shù)字電能計量參數(shù)一致性診斷研究

來源:電工電氣發(fā)布時間:2021-11-19 10:19 瀏覽次數(shù):582

基于IEC 61850-9-2的數(shù)字電能計量參數(shù)一致性診斷研究

程思遠1,焦洋2,王昊澤3
(1 國網(wǎng)河南省電力公司電力科學研究院,河南 鄭州 450052;
2 華中科技大學 電氣與電子工程學院,湖北 武漢 430074;
3 中國電建集團華中電力設計研究院有限公司,河南 鄭州 450007)
 
    摘 要:工程應用中合并單元和數(shù)字化電能表之間參數(shù)不一致造成的計量系統(tǒng)誤差超差、數(shù)據(jù)無法上傳等故障較為常見。介紹了現(xiàn)有的變電站數(shù)字化電能計量系統(tǒng)的參數(shù)一致性研究內(nèi)容,歸納得出工程應用現(xiàn)場發(fā)生的三種設備參數(shù)不一致類型,對各項參數(shù)不一致類型進行正向分析,得到相應的故障表征現(xiàn)象,包括電能、電壓、電流等數(shù)值異常表征。結(jié)合工程實際選取故障表征值,確立相應的診斷表格?;诠收媳碚髦但@取方式和診斷表格設計了一種適用于半數(shù)字化計量體系的診斷方法,并通過試驗驗證了方法的有效性。該診斷方法能夠通過故障現(xiàn)象反向診斷參數(shù)不一致的具體原因,加快工程應用現(xiàn)場設備參數(shù)不一致導致的故障排除速度。
    關鍵詞:數(shù)字化電能計量;參數(shù)不一致類型;故障表征值;參數(shù)一致性診斷表格;參數(shù)一致性診斷方法
    中圖分類號:TM933.4     文獻標識碼:A     文章編號:1007-3175(2021)11-0023-07
 
Study on Parameter Consistency Diagnosis of Digital Energy
Metering Based on IEC 61850-9-2
 
CHENG Si-yuan1, JIAO Yang2, WANG Hao-ze3
(1 State Grid Henan Electric Power Research Institute, Zhengzhou 450052, China;
2 School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;
3 POWERCHINA Central China Electric Power Engineering Co., Ltd, Zhengzhou 450007, China)
 
    Abstract: The situations of system errors and data updating failure exist in engineering applications. The non-consistent parameters between the merging unit and the digital electric energy meter cause these situations. This paper introduced the content of the consistency parameters of the digital measurement system in substations to conclude three different types of the non-consistent parameters of this kind of equipment in the engineering application field. This research analyzed the non-consistent parameters and obtained the fault representation phenomenon, including abnormal numerical representations of electric energy, voltage, and current. This study established a diagnosis form by choosing the fault characterization value in engineering practice. A method of diagnosis suitable for a semi-digital measurement system was designed based on the acquisition method of fault characteristic value and diagnosis form. Experiments proved the effectiveness of this method. This diagnosis method can reverse diagnose the specific causes of a non-consistent parameters by using fault phenomena. Therefore,accelerate the troubleshooting speed caused by non-consistent equipment parameters in the engineering application field.
    Key words: digital energy metering; parameter non-consistent type; fault characterization value; parameter consistency diagnosis form;parameter consistency diagnosis method
 
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