Title :
Three Phase Generalised Power Theory for the Measurement of Powers in an Electric Power System
Author :
Khalsa, H. ; Zhang, J.
Author_Institution :
ABB Australia Pty Ltd., Lilydale, VIC
Abstract :
The deficiencies of present power measurement definitions and techniques in the presence of harmonics is a known problem. As a solution to this problem, a new three phase power theory, which decomposes the instantaneous power into active and non-active instantaneous power, is proposed. With good knowledge of the active/non-active power components an accurate measurement especially of the non-active component is achieved. Also this non-active component can be utilised to achieve better compensation. The theory is evaluated for linear and nonlinear loads in the presence of harmonics with a case study. Results of case study and analysis of the results demonstrate good performance of the proposed theory.
Keywords :
power system harmonics; power system measurement; active instantaneous power; electric power system measurement; linear loads; nonactive instantaneous power; nonlinear loads; three phase generalised power theory; Australia; Conductors; Electric variables measurement; Performance analysis; Phase measurement; Power engineering computing; Power measurement; Power system analysis computing; Power system harmonics; Voltage;
Conference_Titel :
TENCON 2005 2005 IEEE Region 10
Conference_Location :
Melbourne, Qld.
Print_ISBN :
0-7803-9311-2
Electronic_ISBN :
0-7803-9312-0
DOI :
10.1109/TENCON.2005.301107