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Advances in Induction Motor Control (Ref. No. 2000/072), IEE Seminar

Date 2000

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Displaying Results 1 - 8 of 8
  • Visualising vector control in cage motors

    Publication Year: 2000, Page(s):1/1 - 1/4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (240 KB)

    The principal aim of vector control of cage motors is to obtain excellent dynamic torque response. Ideally, it should offer step changes in torque: in practice, very rapid changes are obtained, comparable with the best obtainable from an armature-controlled DC machine of similar size. This paper aims to assist the understanding of the basic mechanism of vector control, by asking how the stator cur... View full abstract»

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  • Vector control of cascaded induction motors

    Publication Year: 2000, Page(s):4/1 - 4/6
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (264 KB)

    This paper presents experimental results of a stator flux-oriented control scheme. This scheme has not previously been applied to the cascaded doubly-fed induction machine (CDFM). In particular, the influence of the closed rotor circuit loop on the control structure has been investigated. It is found that the presence of the closed rotor circuit loop introduces a cross coupling between the d-axis ... View full abstract»

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  • Induction motor sensorless vector control in the field weakening region

    Publication Year: 2000, Page(s):3/1 - 3/6
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (384 KB)

    Speed-sensorless control of induction motor drives has attracted considerable attention in recent past, with a vast amount of effort directed towards providing an accurate speed estimate in the vicinity of zero speed. The problem of speed estimation in the field weakening region has stayed to a large extent beyond the scope of interest. While some of the speed estimation algorithms completely fail... View full abstract»

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  • A 3.3 kV variable frequency converter for retrofitting to existing motors

    Publication Year: 2000, Page(s):2/1 - 2/3
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (156 KB)

    Variable speed control will provide significant benefits when fitted to the many fixed speed motors operating from medium voltage supplies. However, existing motors may not be rated for typical inverter output waveforms or for variable speed duty and care is required to ensure that any benefits are not diluted by problems. This paper describes a standard design for a medium voltage variable freque... View full abstract»

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  • Advances in Induction Motor Control

    Publication Year: 2000, Page(s): 0_2
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (168 KB)

    First Page of the Article
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  • High performance motor drive using matrix converter

    Publication Year: 2000, Page(s):7/1 - 7/6
    Cited by:  Papers (12)  |  Patents (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (452 KB)

    The matrix converter is superior to the PWM inverter drives because of its regeneration ability and sinusoidal input current. Therefore, it meets the stringent energy-efficiency and power quality requirements of the new century. This paper describes the basic operating principles and control method of the matrix converter, and reports the detailed experimental operating characteristics of an 11 kV... View full abstract»

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  • Sensorless induction motor drives

    Publication Year: 2000, Page(s):6/1 - 6/5
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (356 KB)

    The desirability of eliminating mechanical shaft sensors for induction motor drives has led many manufacturers to include sensorless vector drives to their product range. However, current generation sensorless drives are unable to exhibit the same performance as sensored vector drives, particularly at frequencies below a few Hz. This paper reviews current methods and research that may expand the a... View full abstract»

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  • Advanced torque control of induction motors fed by a floating capacitor multilevel VSI actuator

    Publication Year: 2000, Page(s):5/1 - 5/5
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (380 KB)

    This paper deals with the direct torque control of high voltage/high power induction motors fed by floating capacitor multilevel VSI actuators. The active control strategy for balancing the capacitor voltages is presented highlighting an optimal pattern. The efficiency of this approach is compared to the well-known passive method and it is illustrated by simulation. In the next section, a controll... View full abstract»

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