Stabilization of Induction Motor Drives With Poorly Damped Input Filters
نویسندگان
چکیده
منابع مشابه
Speed Observer Design for Linear Induction Motor Drives
In this paper, a neural network model reference adaptive system speed observer is designed, which can be used in speed control of linear induction motors (LIMs). Dynamical equations of LIM have been considered accurate. In other words, the end effect and the electrical losses of the motor have been included in the motor equivalent circuit. Then equations of the reference model and adaptive mode...
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. Fast switching of power devices in an inverter causes high dv/dt at the rising and falling edges of the inverter output waveform. . High dv/dt in modern inverters is the source of numerous disadvantageous effects i.e. faster motor bearings degradation, over-voltages on motor terminals, failure or degradation of the motor winding insulation due to partial discharges, increase of motor losses, ...
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Present day IGBT based power adjustable speed drives have fast turn-ON and turn-OFF times results in high dv/dt being applied to the motor terminals. The high dv/dt switching waveforms along with travelling wave effects of long cables stress motor insulation, cause high ground currents and affects the motor bearings. These issues are exacerbated in PWM Active Front End (AFE) rectifier based mot...
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In conventional direct torque control (DTC) of induction machines, undesirable flux and torque ripples are produced. These occur since non of the selected inverter's voltage vectors are able to generate the exact voltage required to produce the desired changes in the electromagnetic torque and stator flux linkage in most of the switching instances. In addition, when direct torque control is imp...
متن کاملspeed observer design for linear induction motor drives
in this paper, a neural network model reference adaptive system speed observer is designed, which can be used in speed control of linear induction motors (lims). dynamical equations of lim have been considered accurate. in other words, the end effect and the electrical losses of the motor have been included in the motor equivalent circuit. then equations of the reference model and adaptive mode...
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ژورنال
عنوان ژورنال: IEEE Transactions on Industrial Electronics
سال: 2007
ISSN: 0278-0046
DOI: 10.1109/tie.2007.899912