{"title":"Sampling for multi-channel signals and monitoring for the harmonic of power network","authors":"Jiagui Zhao, Jiwu Hu, J. Liu","doi":"10.1109/SICE.1999.788666","DOIUrl":null,"url":null,"abstract":"A monitor system is presented in this paper which is used to measure the harmonic voltages and currents of a three-phase source in a power network. In accordance with the principles of harmonic measurement of digital sampling, this system does synchronous sampling for three voltage signals and three current signals analyzing the harmonics. A synchronous sampling impulse circuit is added in hardware to reduce errors caused by leakage effects, and a quasisynchronous sampling algorithm is used in software design. To reduce errors further, the system can monitor and analyze the fundamental wave and harmonics up to the 50/sup th/ order in real-time.","PeriodicalId":103164,"journal":{"name":"SICE '99. Proceedings of the 38th SICE Annual Conference. International Session Papers (IEEE Cat. No.99TH8456)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1999-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"SICE '99. Proceedings of the 38th SICE Annual Conference. International Session Papers (IEEE Cat. No.99TH8456)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/SICE.1999.788666","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
A monitor system is presented in this paper which is used to measure the harmonic voltages and currents of a three-phase source in a power network. In accordance with the principles of harmonic measurement of digital sampling, this system does synchronous sampling for three voltage signals and three current signals analyzing the harmonics. A synchronous sampling impulse circuit is added in hardware to reduce errors caused by leakage effects, and a quasisynchronous sampling algorithm is used in software design. To reduce errors further, the system can monitor and analyze the fundamental wave and harmonics up to the 50/sup th/ order in real-time.
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