A quality information system based on distributed data acquisition

• Autorzy: Axelberg P. G.
• Języki publikacji: EN

Abstrakty

EN

Traditionally the control and supervision of a power network has mainly been focused on the operation of the network or for protecting system components during fault conditions etc. Relatively little attention has been focused on the product itself - the electrical energy. This old approach is now changing since many processes in the modem society are depending on having access to electrical energy with high reliability and quality. The trend among energy suppliers and power quality sensitive industries is to put increased focus on the supervision of the power quality in order to detect power quality disturbances before they cause unplanned interruptions etc. This paper discusses a system - Quality Information System - for permanent monitoring of power quality. The paper also discusses the new standard IEC 61000-4-30. This standard defines calculation schemes for the most important power quality parameters. The paper also discusses a monitor that is producing power quality information in accordance with this new standard.

Słowa kluczowe

EN

power quality; permanent power monitoring system; IEC 61000-4-30; distributed data processing

• Wydawca: AGH University of Science and Technology
• Czasopismo: Electrical Power Quality and Utilisation. Magazine
• Rocznik: 2005
• Tom: Vol. 1, nr 2
• Strony: 47--54
• Opis fizyczny: bibliogr. 9 poz.

Twórcy

autor

Axelberg P. G.

• UnipowerAB, Sweden,

Bibliografia

• 1. Bollen M.H.J.: Understanding power quality—voltage sags and interruptions. 2000, New York: IEEE Press.
• 2. Bollen M.H.J.: What is power quality? Electric Power Systems Research, Vol. 66, no.1 (July 2003), pp.5-14.
• 3. Koponen P., Miikinen A., Seesvuori R.: Voltage dips caused problems with digital flickermeters. IEEE Porto Power Tech Conference, 10-13 September 2001, Porto, Portugal.
• 4. IEC 61000-4-15, Flickermeter—functional and design specifications.
• 5. Axelberg P.: Measurement Methods for Calculation of the Direction to a Flicker Source. Thesis for the degree of Licentiate of Engineering, Chalmers University of Technology, Dept. of Electric Power Engineering, Gothenburg, Sweden, 2003.
• 6. Axelberg P., Bollen M.H.J., Gu J.: A measurement method for determining the direction of propagation of flicker and for tracing a flicker source. CIRED 2005, Turin, Italy.
• 7. IEC 61000-2-8, Voltage dips and short interrup-tions on power electric power supply systems with statistical measurement results,
• 8. IEEE P1564, Voltage sag indices, draft working-group document. This document is still under development. Check http://grouper.ieee.org for the sta-tus of the document.
• 9. IEC 61000-4-7, Ed. 2.0, Testing and measurement techniques—General guide on harmonics and interharmonics measurements and instrumentation for power supply systems and equipment connected thereto.