Optimization of transient operations in sensorless control techniques based on carrier signal injection

Consoli, A.; Gaeta, A.; Scarcella, G.; Scelba, G.; Testa, Antonio

doi:10.1109/ECCE.2009.5316247

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Rotor position estimation techniques based on signal injection represent the only way to develop sensorless vector control schemes for permanent magnet synchronous motors able to operate at low and zero speed. Unfortunately an unwanted interaction between transient current components and signal produced by the injection makes necessary to inject a quite strong signal to accomplish a correct estimation. The injection of a strong signal causes extra power losses, while resulting in a poor exploitation of the DC bus voltage. The paper first analyzes the mechanisms that generate such a phenomenon. A new approach is then proposed to overcome any interaction that has been positively evaluated by experimental tests.

Titolo:	Optimization of transient operations in sensorless control techniques based on carrier signal injection
Autori:	Consoli A. Gaeta A. Scarcella G. Scelba G. TESTA, Antonio mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2009
Abstract:	Rotor position estimation techniques based on signal injection represent the only way to develop sensorless vector control schemes for permanent magnet synchronous motors able to operate at low and zero speed. Unfortunately an unwanted interaction between transient current components and signal produced by the injection makes necessary to inject a quite strong signal to accomplish a correct estimation. The injection of a strong signal causes extra power losses, while resulting in a poor exploitation of the DC bus voltage. The paper first analyzes the mechanisms that generate such a phenomenon. A new approach is then proposed to overcome any interaction that has been positively evaluated by experimental tests.
Handle:	http://hdl.handle.net/11570/1900477
ISBN:	9781424428939
Appare nelle tipologie:	14.d.3 Contributi in extenso in Atti di convegno

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