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Supply current polar chart analysis of SRM drives under normal and faulty operating conditions
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| A polar chart of the power converter supply current, comprising phase currents and rotor mechanical position information, is presented, in order to characterize the dynamic operation of a SRM drive. Power converter supply current can be used as additional information of extreme importance when a sensor error or failure occurs. Its analysis is then important and permits to develop appropriate fault tolerant control strategies to solve failures or errors on phase current measurements. Time-domain waveforms of the phase currents and power converter supply current are presented and discussed. Two different speed operating conditions examples are presented, in order to understand the differences on SRM dynamic behavior in the all speed range. For both situations, the normal and the faulty operation due to the absence of one motor phase are analyzed. The adopted SRM control strategy, based on the electromagnetic torque regulation, is clearly explained for the all SRM speed range. | 175.87 KB | Adobe PDF |
Orientador(es)
Resumo(s)
A polar chart of the power converter supply current, comprising phase currents and rotor mechanical position information, is presented, in order to characterize the dynamic operation of a SRM drive. Power converter supply current can be used as additional information of extreme importance when a sensor error or failure occurs. Its analysis is then important and permits to develop appropriate fault tolerant control strategies to solve failures or errors on phase current measurements. Time-domain waveforms of the phase currents and power converter supply current are presented and discussed. Two different speed operating conditions examples are presented, in order to understand the differences on SRM dynamic behavior in the all speed range. For both situations, the normal and the faulty operation due to the absence of one motor phase are analyzed. The adopted SRM control strategy, based on the electromagnetic torque regulation, is clearly explained for the all SRM speed range.
Descrição
Article number 4915215, 2nd International Conference on Power Engineering, Energy and Electrical Drives, POWERENG 200918 March 2009 through 20 March 2009 - Code 77128
Palavras-chave
Current supplies Reluctance motors Power supplies Mechanical sensors Sensor phenomena and characterization Failure analysis Fault tolerance Error correction Current measurement Time domain analysis
Contexto Educativo
Citação
N. S. Gameiro and A. J. M. Cardoso, "Supply current polar chart analysis of SRM drives under normal and faulty operating conditions," 2009 International Conference on Power Engineering, Energy and Electrical Drives, Lisbon, Portugal, 2009, pp. 455-460, doi: https://doi.org/10.1109/POWERENG.2009.4915215.
Editora
IEEE Canada
Licença CC
Sem licença CC