The Experts below are selected from a list of 315 Experts worldwide ranked by ideXlab platform
Jean-philippe Lecointe - One of the best experts on this subject based on the ideXlab platform.
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Rotor Design for Reducing the Switching Magnetic Noise of AC Electrical Machine Variable-Speed Drives
IEEE Transactions on Industrial Electronics, 2011Co-Authors: Jean-françois Brudny, Jean-philippe LecointeAbstract:This paper is focused on the analysis of the acoustic noise of the magnetic origin emitted by ac electrical machine Variable-Speed Drives. First, the principle of noise generation is presented as well as the method for taking into account the effects of the current harmonics on noise generated by the pulsewidth modulation supply. The experimental results for noise and vibrations are then presented. Afterward, the elements of the per-phase equivalent circuit for higher harmonic orders are identified. They show that usual assumptions to characterize that circuit are not applicable for high-frequency harmonics. The originality of this paper concerns the rotor design: A practical procedure to diminish the acoustic noise due to the switching is defined from the per-phase equivalent circuit. It is also shown that this design makes it possible to increase the machine efficiency.
Colin Tschida - One of the best experts on this subject based on the ideXlab platform.
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analysis of vibration in permanent magnet synchronous machines due to Variable Speed Drives
IEEE Transactions on Energy Conversion, 2017Co-Authors: Chenjie Lin, Shiliang Wang, Babak Fahimi, Mehdi Moallem, Colin TschidaAbstract:This paper introduces an analytical approach to investigate the stator vibration in permanent magnet synchronous motor due to Variable-Speed Drives. The origin of vibration is studied first. Using an electromechanical impulse response, a direct link between the electrical input to the stator windings and acceleration of the stator is established. This model allows for efficient and accurate computation of the stator vibration in permanent magnet synchronous machines. Simulations and experiments are conducted to validate the claims.
K M Smedley - One of the best experts on this subject based on the ideXlab platform.
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hexagram rectifier active front end of hexagram inverter for medium voltage Variable Speed Drives
IEEE Transactions on Power Electronics, 2008Co-Authors: Jun Wen, K M SmedleyAbstract:Recently, a new multilevel inverter-hexagram inverter has been reported for medium-voltage (MV) Variable-Speed Drives (VSDs). This paper will propose a hexagram rectifier as the active front end for the hexagram-based MV VSD systems. The control of the hexagram rectifier is based on one-cycle control-an excellent control scheme for switching power converters. With the proposed control scheme, unity power factor at the source side can be achieved, the six modules will equally share the output power, and the voltage stress of the converter will be reduced six times. A 1-MW simulation model and a 1.2-kW experimental prototype have been built to demonstrate the proposed hexagram rectifier and its control scheme.
Carmine Landi - One of the best experts on this subject based on the ideXlab platform.
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Metrological performance improvement for power measurements on Variable Speed Drives
Measurement, 1997Co-Authors: Francesco Avallone, Claudio De Capua, Carmine LandiAbstract:Abstract An automatic measurement station for digital efficiency measurement on high and low power Variable Speed Drives has been designed and implemented. An optimization criterion for this measurement station has thus been proposed. This criterion is based upon a systematic approach to uncertainty evaluation, and can be easily extended to any automatic testing equipment. Experimental verification of the proposed methodology has been performed by measurements on actual electrical Drives.
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Metrological performance improvement for power measurements on Variable Speed Drives
Measurement, 1997Co-Authors: Francesco Avallone, Claudio De Capua, Carmine LandiAbstract:Abstract An automatic measurement station for digital efficiency measurement on high and low power Variable Speed Drives has been designed and implemented. An optimization criterion for this measurement station has thus been proposed. This criterion is based upon a systematic approach to uncertainty evaluation, and can be easily extended to any automatic testing equipment. Experimental verification of the proposed methodology has been performed by measurements on actual electrical Drives.
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Measurement station performance optimization for testing of high efficiency Variable Speed Drives
IEEE Transactions on Instrumentation and Measurement, 1996Co-Authors: Francesco Avallone, Claudio De Capua, Carmine LandiAbstract:In efficiency measurement on high performance Variable Speed Drives it is necessary to carry out power measurement on distorted signals with low uncertainty; this involves the adoption of a suitable test stand and an adequate measurement technique. In this paper, a brief description of the implemented measurement station for digital efficiency measurement on high and low power electrical Drives is firstly performed. Then, a systematic approach to uncertainty evaluation and a performance optimization criterion are proposed for the automatic measurement station designed for the testing of high efficiency Variable Speed Drives.
Mark Sumner - One of the best experts on this subject based on the ideXlab platform.
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Robust Control Design through Experimental Load Identification for Variable Speed Drives
2007 IEEE Industry Applications Annual Meeting, 2007Co-Authors: N. Okaeme, Pericle Zanchetta, Mark SumnerAbstract:A robust method for Speed control design in Variable Speed Drives based on experimental plant model identification is presented in this paper. Genetic algorithms are employed for both experimentally identifying the nominal mechanical system parameters and to optimize suitable controllers on an accurate simulation of the experimental prototype using the estimated plant parameters and with a robustness constraint based on the same identified mechanical system model. Structure and parameters of robust Speed controllers have been designed for a permanent magnet DC Variable Speed drive subject to Variable mechanical loads. Experimental tests are presented to validate the proposed design procedure. The method provides a fully automated commissioning procedure for servo and high performance Drives and offers significant improvements to current industrial drive systems.
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Robust Control Design through Experimental Load Identification for Variable Speed Drives
2007 IEEE Industry Applications Annual Meeting, 2007Co-Authors: N. Okaeme, Pericle Zanchetta, Mark SumnerAbstract:A robust method for Speed control design in Variable Speed Drives based on experimental plant model identification is presented in this paper. Genetic algorithms are employed for both experimentally identifying the nominal mechanical system parameters and to optimize suitable controllers on an accurate simulation of the experimental prototype using the estimated plant parameters and with a robustness constraint based on the same identified mechanical system model. Structure and parameters of robust Speed controllers have been designed for a permanent magnet DC Variable Speed drive subject to Variable mechanical loads. Experimental tests are presented to validate the proposed design procedure. The method provides a fully automated commissioning procedure for servo and high performance Drives and offers significant improvements to current industrial drive systems.
