The Experts below are selected from a list of 28404 Experts worldwide ranked by ideXlab platform
P Mutschler - One of the best experts on this subject based on the ideXlab platform.
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fault tolerant Voltage Source Inverter for permanent magnet drives
IEEE Transactions on Power Electronics, 2012Co-Authors: R R Errabelli, P MutschlerAbstract:In this paper, a two-level fault-tolerant Voltage Source Inverter (VSI) for permanent magnet drives is systematically designed and tested. A standard two-level Inverter consists of three legs. In this case of fault-tolerant Inverter, a redundant leg is added that replaces the faulted leg. Faulted leg isolation and redundant leg insertion are done by using independent back-to-back-connected thyristors. The proposed Inverter provides tolerance to both short-circuit and open-circuit faults of the switching devices. The postfault performance is the same as the normal prefault operation and fault compensation is fast enough such that there is negligible disturbance in the drive operation. The fault tolerance of the Inverter is verified using field-oriented control of a permanent magnet synchronous motor.
A M S Mendes - One of the best experts on this subject based on the ideXlab platform.
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thermal behavior of a three phase induction motor fed by a fault tolerant Voltage Source Inverter
IEEE Transactions on Industry Applications, 2007Co-Authors: A M S Mendes, Xose M Lopezfernandez, A J M CardosoAbstract:This paper presents the results of an investigation regarding the thermal behavior of a three-phase induction motor when supplied by a reconfigured three-phase Voltage Source Inverter with fault-tolerant capabilities. For this purpose, a fault-tolerant operating strategy based on the connection of the faulty Inverter leg to the dc link middle point was considered. The experimentally obtained results show that, as far as the motor thermal characteristics are concerned, it is not necessary to reinforce the motor insulation properties since it is already prepared for such an operation
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Voltage Source Inverter fault diagnosis in variable speed ac drives by the average current park s vector approach
International Electric Machines and Drives Conference, 1999Co-Authors: A M S Mendes, A Marques J CardosoAbstract:This paper introduces a new approach, based on the average motor supply current Park's vector monitoring, for diagnosing Voltage Source Inverter faults in variable speed AC drives. Both simulation and laboratory tests results demonstrate the effectiveness of the proposed on-line diagnostic technique.
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Voltage Source Inverter fault diagnosis in variable speed ac drives by park s vector approach
1998 Seventh International Conference on Power Electronics and Variable Speed Drives (IEE Conf. Publ. No. 456), 1998Co-Authors: A M S Mendes, A Marques J Cardoso, E S SaraivaAbstract:This paper presents the use of the Park's vector approach for diagnosing Voltage Source Inverter faults, like output single-phasing and the occurrence of either a short-circuit or an open circuit of the controlled power switches. For this study, a prototype was built, having all the power terminals available for testing, including the ones for every semiconductor. For the short-circuit tests, a 17 /spl Omega/ auxiliary resistor was used, connected in parallel with the power switch to be tested, in order to limit the short-circuit current.
R R Errabelli - One of the best experts on this subject based on the ideXlab platform.
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fault tolerant Voltage Source Inverter for permanent magnet drives
IEEE Transactions on Power Electronics, 2012Co-Authors: R R Errabelli, P MutschlerAbstract:In this paper, a two-level fault-tolerant Voltage Source Inverter (VSI) for permanent magnet drives is systematically designed and tested. A standard two-level Inverter consists of three legs. In this case of fault-tolerant Inverter, a redundant leg is added that replaces the faulted leg. Faulted leg isolation and redundant leg insertion are done by using independent back-to-back-connected thyristors. The proposed Inverter provides tolerance to both short-circuit and open-circuit faults of the switching devices. The postfault performance is the same as the normal prefault operation and fault compensation is fast enough such that there is negligible disturbance in the drive operation. The fault tolerance of the Inverter is verified using field-oriented control of a permanent magnet synchronous motor.
A Marques J Cardoso - One of the best experts on this subject based on the ideXlab platform.
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Voltage Source Inverter fault diagnosis in variable speed ac drives by the average current park s vector approach
International Electric Machines and Drives Conference, 1999Co-Authors: A M S Mendes, A Marques J CardosoAbstract:This paper introduces a new approach, based on the average motor supply current Park's vector monitoring, for diagnosing Voltage Source Inverter faults in variable speed AC drives. Both simulation and laboratory tests results demonstrate the effectiveness of the proposed on-line diagnostic technique.
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Voltage Source Inverter fault diagnosis in variable speed ac drives by park s vector approach
1998 Seventh International Conference on Power Electronics and Variable Speed Drives (IEE Conf. Publ. No. 456), 1998Co-Authors: A M S Mendes, A Marques J Cardoso, E S SaraivaAbstract:This paper presents the use of the Park's vector approach for diagnosing Voltage Source Inverter faults, like output single-phasing and the occurrence of either a short-circuit or an open circuit of the controlled power switches. For this study, a prototype was built, having all the power terminals available for testing, including the ones for every semiconductor. For the short-circuit tests, a 17 /spl Omega/ auxiliary resistor was used, connected in parallel with the power switch to be tested, in order to limit the short-circuit current.
E.r.c. Da Silva - One of the best experts on this subject based on the ideXlab platform.
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a three leg Voltage Source Inverter for two phase ac motor drive systems
IEEE Transactions on Power Electronics, 2002Co-Authors: M B De Rossiter Correa, Cursino B. Jacobina, Antonio Marcus Nogueira Lima, E.r.c. Da SilvaAbstract:This paper investigates the use of a three-leg Voltage Source Inverter topology for supplying two-phase induction motors. The paper also presents two pulse width modulation techniques for Voltage control and a quasi time-invariant model to describe an unbalanced two-phase machine. The correctness of the proposed drive system was demonstrated through experimental results obtained with a laboratory prototype.
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a three leg Voltage Source Inverter for two phase ac motor drive systems
Power Electronics Specialists Conference, 2001Co-Authors: M B De Rossiter Correa, Cursino B. Jacobina, Antonio Marcus Nogueira Lima, E.r.c. Da SilvaAbstract:This paper presents a three-leg Voltage Source Inverter topology for supplying two-phase induction machines. The paper also presents the pulse width modulation strategy for Voltage control and a quasi time-invariant model to describe an unbalanced two-phase machine. The correctness of the proposed system is demonstrated through experimental results obtained from a 1 kW laboratory prototype.
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Current control for a random PWM Voltage Source Inverter
PESC97. Record 28th Annual IEEE Power Electronics Specialists Conference. Formerly Power Conditioning Specialists Conference 1970-71. Power Processing, 1Co-Authors: Cursino B. Jacobina, Antonio Marcus Nogueira Lima, E.r.c. Da Silva, R.l.dea. RibeiroAbstract:This paper investigates the use of a current control strategy and a Voltage Source Inverter with random pulse width modulation (RPWM) to supply an induction motor. The RPWM technique permits a reduction in the acoustic noise and vibration in AC motor drive systems. Some selected experimental results obtained with the proposed controller are also presented.
