The Hilbert Transform Adaptation for Measuring Amplitude and Phase Low-Frequency Disturbances in Power System Voltage

• Autorzy: Bień A.
• Języki publikacji: EN

Abstrakty

EN

Phase disturbances in electric power signals are neglected and only amplitude (envelope) distortions are discussed in a literature. Amplitude disturbances are interpreted as Amplitude Modulation (AM) of main 50 Hz frequency. Detailed analysis of all disturbances and their sources are presented in the paper. It is shown that AM and narrow band PM (phase modulation) take place in power network simultaneously and those two modulations interact with each other. Voltage variation is proposed as disturbances measurement. Theoretical results are verified by field experiments and their results are presented.

Słowa kluczowe

EN

flickermeter; analytical signal; fundamental component; compensation; function variation

• Wydawca: AGH University of Science and Technology ; Lodz University of Technology
• Czasopismo: Electrical Power Quality and Utilisation. Journal
• Rocznik: 2008
• Tom: Vol. 14, iss. 2
• Strony: 7--12
• Opis fizyczny: Bibliogr. 8 poz., rys., wykr.

Twórcy

autor

Bień A.

• AGH – University of Science and Technology, Kraków, Poland

Bibliografia

• 1. Arrillaga J. Watson N.R.: Computer modelling of electrical power systems. John Wiley & Sons, LTD 2001.
• 2. Bień A.: Signal swing norm as a measure of electrical energy quality. 2000 International Confederation XVI IMEKO World Congress, Hofburg Wien Austria, September 25–28, 2000, p. 35–38.
• 3. Bień A. Rozkrut A.: A measurement scale for the light flickering phenomenon. Proceedings of the 6th International Conference, Electrical Power Quality and Utilisation, September 19–21, 2001, Kraków, p. 231–239.
• 4. Duda K. Bien A. Szyper M. Zielinski T.: Analysis of Voltage disturbances caused by simultaneous amplitude and chase modulation in electric power network. The 2004 IEEE International Conference on Harmonics and Quality of Power (ICHQP), Lake Placid, New York 2004, Session: Voltage Sags, (Paper #hqp048).
• 5. Piekarz M. Szlosek M. Hanzelka Z. Bień A. Stankiewicz A. Hartman M.: Comparative tests of flickermeters. 10th International Conference on Harmonics and Quality of Power, Rio de Janeiro, Brazil, October 6–9,2002, Papers Measurements Techniques, 02ICHQP015.pdf.
• 6. Guide to Quality of Electrical Supply for Industrial Installations, Part 5, Flicker and Voltage Fluctuations, „Power Quality” Working Group WG2, 2000.
• 7. IEC 60868, Flickermeter, Functional and design specifications, 1986.
• 8. IEC 61000-4-15 A1 Ed.1, Amendment to IEC 61000-4-15, Electromagnetic compatibility (EMC) – Part 4-15: Testing and measurement techniques – Flickermeter – Functional and design specifications, 2002–09–20.