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研究生:李錦昌
研究生(外文):Jin-Chang Lee
論文名稱:以個人電腦基礎之虛擬電力分析儀
論文名稱(外文):A PC-Based Virtual Instrument for Power Analyzers
指導教授:鄧人豪鄧人豪引用關係
指導教授(外文):Jen-Hao Teng
學位類別:碩士
校院名稱:義守大學
系所名稱:電機工程學系
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2001
畢業學年度:89
語文別:中文
論文頁數:74
中文關鍵詞:虛擬儀表附屬虛擬儀表諧波分析功率計算LabVIEW軟體IC
外文關鍵詞:Virtual InstrumentSub-VIsHarmonic analyzerPower measurementLabVIEWSoftware Integrated Circuit
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本論文提出三種以個人電腦為基礎之虛擬電力分析儀,所提出的虛擬儀表(Virtual Instrument, VI)是在Windows 95/98作業系統下以LabVIEW (Laboratory Virtual Instrument Engineering Workbench)軟體所設計。利用此種設計方法,虛擬儀表的功能可依使用者的需求而逐漸擴充其功能。在本論文中所介紹的虛擬電力分析儀其主要功能包括一個通用的示波器、諧波分析、功率計算以及各種電力品質分析記錄器。在虛擬電力分析儀的研發中,我們發展了許多的附屬虛擬儀表(sub-VIs),透過這些附屬虛擬儀表間的彼此連接可設計出所需的電力品質分析功能並完成軟體IC (Integrated Circuit, IC)的構想。
Three PC-based Virtual Instruments (VI) for power analyzers are developed in the thesis. The proposed VI is based on LabVIEW (Laboratory Virtual Instrument Engineering Workbench) language under the workbench of the MS Windows 95/98 operating system. Instead of theoretical research, some practical sub-VIs, such as the harmonic analyzer, power factor and power measurement, TCP/IP read and TCP/IP write etc., are developed first. By using those developed sub-VIs, three VI including the power analyzer, power quality recorder and internet-based power quality recorder can be designed. The capability of the proposed system can be expanded according to the requirements of users. One of the most attractive facts is that a well-developed VI can be considered as a software IC and used to design a large-scale or complex system. The reuse of the existed sub-VIs makes the development of a new VI easier.
第一章 緒論…………………………………………………………………1
1-1 背景簡介………………………………………………………………1
1-2 研究動機………………………………………………………………1
1-3 論文架構………………………………………………………………6
第二章 Lab VIEW軟體簡介…………………………………………………7
2-1 虛擬儀表的組成………………………………………………………7
2-2 LabVIEW的特性…………………………………………………………8
第三章 虛擬儀表硬體架構…………………………………………………11
3-1 訊號處理………………………………………………………………12
3-1-1 電壓訊號……………………………………………………………12
3-1-2 電流訊號……………………………………………………………13
3-2 訊號擷取介面…………………………………………………………15
第四章 虛擬儀表主要功能…………………………………………………18
4-1 示波器…………………………………………………………………18
4-1-1 資料擷取……………………………………………………………19
4-1-2 存檔…………………………………………………………………21
4-1-3 讀檔…………………………………………………………………22
4-2 諧波分析………………………………………………………………23
4-2-1 諧波成份……………………………………………………………23
4-2-2 總諧波失真率THD(%)………………………………………………25
4-2-3 頻率分析……………………………………………………………26
4-3 功率計算………………………………………………………………28
4-3-1 瞬間功率……………………………………………………………28
4-3-2 平均功率……………………………………………………………29
4-3-3 功率因數……………………………………………………………31
4-4 分析記錄器……………………………………………………………34
4-4-1 諧波分析記錄………………………………………………………34
4-4-2 瞬間功率記錄………………………………………………………36
4-4-3 功率因數記錄………………………………………………………37
4-4-4 平均功率記錄………………………………………………………38
4-4-5 頻率分析記錄………………………………………………………40
第五章 設計成果……………………………………………………………42
5-1 虛擬電力分析儀………………………………………………………42
5-1-1 人機界面……………………………………………………………42
5-1-2 操作方法……………………………………………………………45
5-2 電力品質分析記錄器…………………………………………………47
5-2-1 人機界面……………………………………………………………47
5-2-2 操作方法……………………………………………………………49
5-3 透過網路監控之電力分析記錄器……………………………………56
5-3-1 人機界面……………………………………………………………56
5-3-2 操作方法……………………………………………………………57
第六章 實際操作結果……………………………………………………58
6-1 虛擬電力分析儀………………………………………………………58
6-1-1 諧波分析……………………………………………………………58
6-1-2 家電負載……………………………………………………………60
6-2 電力品質分析記錄器…………………………………………………61
6-2-1 家庭用電……………………………………………………………62
6-2-2 研究室照明用電……………………………………………………67
6-3 透過網路監控之電力分析記錄器……………………………………68
6-3-1 server端……………………………………………………………68
6-3-2 client端……………………………………………………………69
第七章 結論與未來研究方向………………………………………………71
7-1結論………………………………………………………………………71
7-2未來研究方向……………………………………………………………72
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[2]H. J. W. Spoelder, “Virtual Instrumentation and Virtual Environments,” IEEE Instrumentation & Measurement Magazine, Vol. 2, No. 3, Sept. 1999, pp. 14 —19.
[3]L. Cristaldi, A. Ferrero, and V. Piuri “Programmable instruments, virtual instruments, and distributed measurement systems: what is really useful, innovative and technically sound?,” IEEE Instrumentation & Measurement Magazine, Vol. 2, No. 3, Sept. 1999, pp. 20 —27.
[4]“LabVIEW User Manual,” National Instrument, 1996.
[5]Foster, K.R., “New Math for LabVIEW,” IEEE Spectrum, Vol. 34, No. 6, June 1997, pp. 66-66.
[6]A. Ferrero and V. Piuri, “A Simulation Tool for Virtual Laboratory Experiments in a WWW environment,” IEEE Trans. on Instrumentation and Measurement, Vol. 48, No. 3, pp. 741-746, June 1999.
[7]House, R., “Choosing the Right Software for Data Acquisition” IEEE Spectrum Vol. 32, No. 5, May 1995, pp. 24 -26, 28-32, 34-9.
[8]Cristaldi, L. and Ferrero, A. Harmonic, “Power Flow Analysis for the Measurement of the Electric Power Quality,” IEEE Trans. on Instrumentation and Measurement, Vol. 44, No. 3, June 1995, pp.683 -685
[9]Cristaldi, L. and Ferrero, A., “A Method and Related Digital Instrument for the Measurement of the Electric Power Quality” IEEE Trans. on Power Delivery, Vol. 10, No. 3, July 1995, pp. 1183 —1189.
[10]J. Arrilliaga, D. A. Bradley, P. S. Bodger, “Power System Harmonics,” John Wiley and Sons, New York, 1985.
[11]Benton, J.S., ”Virtual Instrument Measures Harmonic Filter Duty,” IEEE Computer Applications in Power, Vol. 8, No. 4, Oct. 1995, pp. 43 —46
[12]S. Nuccio, “A Digital Instrument for Measurement of Voltage Flicker,” IEEE Instrumentation and Measurement Technology Conference, pp. 281-284, 1997.
[13]Caldara, S., Nuccio, S. and Spataro, C., “A Virtual Instrument for Measurement of Flicker,” IEEE Trans. on Instrumentation and Measurement, Vol. 47, No. 5, Oct. 1998, pp. 1155 —1158.
[14]Zrudsky, D.R. and Pichler, J.M., “Virtual Instrument for Instantaneous Power Measurements,” IEEE Trans. on Instrumentation and Measurement, Vol. 41, No. 4, Aug. 1992, pp. 528 —534.
[15]謝勝治, “圖控式程式語言-LabVIEW,” 全華科技圖書股份有限公司,1999
[16]邱創乾, “機電整合系統實習,” 立治有限公司, 1996
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