Title :
Magnetic crosstalk compensation for an optical current transducer
Author :
Niewczas, Pawel ; Madden, W. Iain ; Michie, W. Craig ; Cruden, Andrew ; Mcdonald, James R
Author_Institution :
Centre for Electr. Power Eng., Strathclyde Univ., Glasgow, UK
fDate :
10/1/2001 12:00:00 AM
Abstract :
In this paper, we analyze the errors associated with magnetic crosstalk within point type, or unlinked, optical current transducers (OCTs) working in a three-phase electric current transmission systems. For many practical conductor arrangements, the magnetic crosstaIk may introduce errors unacceptable for the accuracy requirements demanded from the OCT. A solution to this problem is devised around a unique compensation method which solves, in real time, a set of linear equations, each representing the instantaneous output signal from one phase current sensor
Keywords :
Faraday effect; calibration; crosstalk; electric current measurement; error compensation; magneto-optical sensors; measurement errors; transducers; Faraday effect; compensation; conductor; errors; linear equations; magnetic crosstaIk; magnetic crosstalk; magnetooptic transducer; optical current transducers; phase current sensors; real time; three-phase electric current transmission; Conductors; Magnetic field measurement; Magnetic fields; Magnetic sensors; Optical crosstalk; Optical fiber polarization; Optical propagation; Optical sensors; Sensor phenomena and characterization; Transducers;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
