The Spatial Effect and Compensation ofCurrent Sensor Differential Gains for Three-Phase Three-Wire Systems

Current sensor errors affect torque control and saliency-tracking position estimation of AC machines. In this paper, a spatial model of current sensor gain deviation is developed and used to determine its effect on general current measurement, verified with experimental data. Three current sensors e...

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Veröffentlicht in:	IEEE transactions on industry applications 2008-07, Vol.44 (4), p.1181-1189
Hauptverfasser:	Harke, M.C., Lorenz, R.D.
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithms Alternating current Balanced polyphase current sensors Circuits Compensation Computer simulation Current measurement current sensor gain balancing current sensor-induced torque ripple current vector sensing Deviation Electronic equipment testing Error correction Error detection Gain Gain measurement Phase estimation Sensor phenomena and characterization Sensor systems Sensor systems and applications Sensors three phase current sensing Torque control
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Beschreibung
Zusammenfassung:	Current sensor errors affect torque control and saliency-tracking position estimation of AC machines. In this paper, a spatial model of current sensor gain deviation is developed and used to determine its effect on general current measurement, verified with experimental data. Three current sensors enable a three-phase three-wire system to compensate for current sensor differential gains independent of additional machine saliencies. Simulation and experimental results confirm the current sensor gain-deviation compensation algorithm.
ISSN:	0093-9994 1939-9367
DOI:	10.1109/TIA.2008.926208