ANALIZA POJAVA NASPROTNE JALOVE MOČI NA DVEH VZPOREDNIH NADZEMNIH VODIH
Povzetek
V članku je predstavljena analiza pojava nasprotne jalove moč na dveh vzporednih nadzemnih vodih. Najprej so meritve opravljene na realnem daljnovodu in pojav je posnete z merilniki električne energije. Površno razmišljanje nas pripelje do zaključka, da je sistem merjenja dvomljiva. Podrobnejša teoretična analiza pa pokaže, da je ta pojav mogoč in ni posledica nepravilnega
merjenja. Vendar je rezultat porazdelitve jalove moči vzdolž posameznih prenosnih vodov.
Prenosi
Literatura
‘European network of transmission system operators for electricity’, https://www.entsoe.eu/Pages/default.aspx, accessed April 2016
The European Commission: Regulation (EC) No 714/2009 - on conditions for access to the network for cross-border exchanges in electricity and repealing Regulation (EC), No. 1228/2003 (2009)
L. Jozsa: Nadzemni vodovi, Faculty of Electrical Engineering in Osijek, 2011
T. Gonen: Electric Power Transmission-System Engineering, John Wiley & Sons, 1988
Ž. Modrić, Z. Kovač, K. Fekete: Determination of Energy Interchanged on the Tie Lines— Some Practical Issues, Journal of Energy and Power Engineering, 2014, iss. 8, pp. 948–956
JCGM: Evaluation of measurement data — Supplement 1 to the “Guide to the expression of uncertainty in measurement” — Propagation of distributions using a Monte Carlo method, 2008
IEC 60044-1:1996 Instrument transformers - Part 1: Current transformers, https://webstore.iec.ch/publication/12389, accessed October 2016
IEC 61869-2:2012 Instrument transformers - Part 2: Additional requirements for current transformers, https://webstore.iec.ch/publication/6050, accessed October 2016
IEC 61869-3:2011 - Part 3: Additional requirements for inductive voltage transformers, https://webstore.iec.ch/publication/6051, accessed October 2016
IEC 62053-22:2003 Electricity metering equipment (a.c.) - Particular Requirements - Part
: Static meters for active energy (classes 0,2 S and 0,5 S), https://webstore.iec.ch/publication/6383, accessed October 2016
Landes&Gyr AG: High Precision Metering ZMQ202/ZFQ202 User Manual, 2005
ISKRAEMECO: Three-phase electronic multi-function meter for industry - Technical Description, 2013
D. F. Wiliams, R. B. Marks: Transmission Line Capacitance Measurement, IEEE Microwave and Guided Wave Letters, 1991, vol. 1, iss. 9, pp. 243–245
M. N. O. Sadiku, L. C. Agba: A Simple Introduction to the Transmission-Line Modeling, IEEE Transactions on Circuits and Systems, 1990, vol. 37, iss. 8, pp. 991–999
G. Sivanagaraju, S. Chakrabarti, S. C. Srivastava: Uncertainty in Transmission Line Parameters: Estimation and Impact on Line Current Differential Protection, IEEE Trans. Instrum. Meas., 2014, vol. 63, iss. 6, pp. 1496–1504