An on-site calibration system for electronic instrument transformers based on LabVIEW

• Autorzy: Zhang M. , Li K. , Wang J. , He S.

Identyfikatory

DOI

10.2478/mms-2014-0022

• Języki publikacji: EN

Abstrakty

EN

Electronic voltage transformers (EVT) and electronic current transformers (ECT) are important instruments in a digital substation. For simple, rapid and convenient development, the paper proposed an on-site calibration system for electronic instrument transformers based on LabVIEW. In the system, analog signal sampling precision and dynamic range are guaranteed by the Agilent 3458A digital multimeter, and data synchronization is also achieved based on a self-developed PCI synchronization card. To improve the measurement accuracy, an error correction algorithm based on the Hanning window interpolation FFT has good suppression of frequency fluctuation and inter-harmonics interference. The human-computer interface and analysis algorithm are designed based on LabVIEW, and the adaptive communication technology is designed based on IEC61850 9-1/2. The calibration system can take into account pairs of digital output and analog output of the electronic voltage/current transformer calibration. The results of system tests show that the calibration system can meet the requirements of 0.2 class calibration accuracy, and the actual type test and on-site calibration also show that the system is easy to operate with convenience and satisfactory stability.

Słowa kluczowe

EN

calibration system; electronic instrument transformers; data acquisition; data synchronization; LabVIEW

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2014
• Tom: Vol. 21, nr 2
• Strony: 257--270
• Opis fizyczny: Bibliogr. 15 poz., rys., tab., wykr.

Twórcy

autor

Zhang M.

• Wuhan Textile University, School of Electronic and Electrical Engineering, Wuhan 430074, Hubei Province, China

autor

Li K.

• Huazhong University of Science and Technology, School of Electrical and Electronic Engineering, Wuhan 430074, Hubei Province, China

autor

Wang J.

• Wuhan Textile University, School of Electronic and Electrical Engineering, Wuhan 430074, Hubei Province, China

autor

He S.

• Huazhong University of Science and Technology, School of Electrical and Electronic Engineering, Wuhan 430074, Hubei Province, China

Bibliografia

• [1] Kang, M.(1999). Analysis and design of electronic transformers for electric power distribution system. IEEE Trans. Power Electron.,14(6),1133-1141.
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• [3] Faifer, M., Toscani, S., Ottoboni, R. (2011). Electronic combined transformer for power-quality measurements in high-voltage systems. IEEE Trans. Instrum. Meas., 60 (6), 2007-2013.
• [4] IEC60044-7 (2002). Instrument Transformer-part 7, Electronic Voltage Transformers. International Electrotechnical Commission: Geneva, Switzerland.
• [5] IEC60044-8 (2002). Instrument Transformer-part 8, Electronic Current Transformers. International Electrotechnical Commission: Geneva, Switzerland.
• [6] Brandolini, A., Faifer, M., Ottoboni, R. (2009). A simple method for the calibration of traditional and electronic measurement current and voltage transformers. IEEE Trans. Instrum. Meas., 58(5),1345-1353.
• [7] Djokic, B. (2010). Calibration of Rogowski coils at frequencies up to 10 kHz using digital sampling. IEEE Trans. Instrum. Meas., 59 (5), 1303-1308.
• [8] Tong, Y., Ye, G. X., Guo, K. Q., Li, H. B. (2011). Highly accurate calibration system for electronic instrument transformers. Metrol. Meas. Syst., XVIII (2), 315-322.
• [9] Zhang, Z., Li, H. B. (2012). An accurate system for onsite calibration of electronic transformers with digital output. Rev. Sci. Instrum., 83 (6), 065111:1-7.
• [10] Winiecki, P. W.(2002). Virtual spectrum analyzer based on data acquisition card. IEEE Trans. Instrum. Meas., 51(1), 82-87.
• [11] Bo, L., Liu, X. F., He, X. X. (2011). Measurement system for wind turbines noises assessment based on LabVIEW. Measurement, 44 (2) ,445-453.
• [12] IEC 61850-9-1 (2003). Communication Networks and Systems in Substations-Part 9-1: Specific Communication Service Mapping (SCSM)-Sampled Values over Serial Unidirectional Multidrop Point to Point Link. International Electrotechnical Commission: Geneva, Switzerland.
• [13] IEC 61850-9-2 (2004). Communication Networks and Systems in Substations-Part 9-2: Specific Communication Service Mapping (SCSM)-Sampled Values over ISO/IEC 8802-3. International Electrotechnical Commission: Geneva, Switzerland.
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• [15] Agilent Technologies (2000). Agilent Technologies 3458A Multimeter User’s Guide. Agilent Technologies Inc..

Uwagi

EN

This work was supported by Natural Science Foundation of China grants 51077058 and 51277080.