Results 251 to 260 of about 2,498,380 (297)
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Invertor drives for induction motors
Students Quarterly Journal, 1972Induction motors have many advantages for industrial use, but the only simple and efficient way of controlling their speed is by using static invertors to supply them with variable-frequency, variable-voltage a.c.
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Voltage vectorial control of an induction motor drive
IEEE International Symposium on Industrial Electronics. Proceedings. ISIE'98 (Cat. No.98TH8357), 2002The paper describes a vectorial control strategy for induction motor fed by VSI which allows to exploit the dynamic performances by taking into account both the rotor and stator time constant, and avoiding at the same time the use of current control loop.
Attaianese C +4 more
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2000
This section deals with the general description of induction machine drives including general properties and applications. The principle of the dc equivalent for the induction machine has been developed with interest in torque and flux control. Then, the control implementation has been suggested on the basis of the simple Stanley equations for the ...
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This section deals with the general description of induction machine drives including general properties and applications. The principle of the dc equivalent for the induction machine has been developed with interest in torque and flux control. Then, the control implementation has been suggested on the basis of the simple Stanley equations for the ...
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Flywheel-induction-motor drive
Electrical Engineering, 1950MANY DRIVES with fluctuating loads must be equipped with flywheels in order to reduce the size of the motor required and the load peaks taken from the supply mains. This problem has been discussed in many papers and technical books, and it is obvious that the general-purpose induction motor cannot be used for flywheel drives.
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2009
This chapter explores the use of induction machines in variable speed drive systems by using several control strategies. First, voltshperhhertz control, is designed to accommodate variablehspeed commands by using the inverter to apply a voltage of correct magnitude and frequency so as to approximately achieve the commanded speed without the use of ...
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This chapter explores the use of induction machines in variable speed drive systems by using several control strategies. First, voltshperhhertz control, is designed to accommodate variablehspeed commands by using the inverter to apply a voltage of correct magnitude and frequency so as to approximately achieve the commanded speed without the use of ...
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Multiphase Induction Motor Drives
IET Chennai 3rd International Conference on Sustainable Energy and Intelligent Systems (SEISCON 2012), 2012Recent research articles mostly addressing towards multiphase inverter fed multiphase induction motors due to their redundant structure, and reliability with high fault tolerant capabilities. Benefits over the traditional three-phase motors are, by reducing the amplitude and increasing the frequency of torque pulsations, lowering the rotor harmonic ...
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Sensorless speed control in induction motor drives
Proceedings First IEEE International Workshop on Electronic Design, Test and Applications '2002, 2003This paper describes a method of sensorless speed estimation that is low cost and easy to implement. It uses two different algorithms, and so compensates for the weaknesses of the individual algorithms producing a robust low cost application. A method is investigated that uses the rotor slot harmonics to estimate the speed of the motor above 300 rpm ...
William Phipps, Ibrahim Al-Bahadly
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Adaptive Vector Control of Induction Motor Drive
2020 7th International Conference on Energy Efficiency and Agricultural Engineering (EE&AE), 2019Modern induction electric drives usually use vector control, due to which their characteristics are improved. The purpose of most studies are the problems associated with the identification and estimation of the parameters of electric drives at zero speed and close to it. The article proposes an adaptive control in the control loop of the torque.
Nikolay F. Djagarov +4 more
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Optimal Efficiency Control of an Induction Motor Drive
IEEE Transactions on Energy Conversion, 1987A practical method for achieving optimal efficiency over the complete operating range of a variable speed drive is described. The proposed system adaptively adjusts the flux level in the motor based on a direct measurement of the power input to the drive.
Kirschen, Daniel S. +2 more
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An observer for speed sensorless induction motor drive
Proceedings of 1994 IEEE International Symposium on Industrial Electronics (ISIE'94), 2002An observer for a speed sensorless induction motor drive is proposed in the paper. It is easy to implement on a microprocessor with particular reference to high performance drives requiring the vectorial control technique which needs a flux observer. The proposed speed observer is based on an adequate arrangement of the error system equations, written ...
C. ATTAIANESE, PERFETTO A
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