scholarly journals Online Rotor Time Constant Estimator for Induction Machines with Optimum Flux

10.5772/7585 ◽  
2010 ◽  
Author(s):  
Said Grouni ◽  
Rachid Ibtiouen ◽  
Madjid Kidouche ◽  
Omar Touhami
Keyword(s):  
Time Constant ◽  
Induction Machines

Speed Sensorless Identification of the Rotor Time Constant in Induction Machines

2007 ◽  
Vol 52 (4) ◽  
pp. 758-763 ◽  
Author(s):  
Mengwei Li Campbell ◽  
John Chiasson ◽  
Marc Bodson ◽  
Leon M. Tolbert
Keyword(s):  
Time Constant ◽  
Induction Machines ◽  
Speed Sensorless

scholarly journals A continuous energy-efficiency optimization controller for field-orientation induction motor drives

2020 ◽  
Vol 5 (130) ◽  
pp. 3-14
Author(s):  
Grygorii Diachenko ◽  
Oleksandr Aziukovskyi
Keyword(s):  
Time Constant ◽  
Numerical Study ◽  
Transient Behavior ◽  
Induction Machines ◽  
Motor Drives ◽  
Rate Of Change ◽  
Field Orientation ◽  
Linkage Rate ◽  
Adaptive Choice ◽  
Operation Cycle

The current paper discusses the adaptive choice of a filter time constant for filtering the steady-state flux reference in the energy-efficient control problem of field-orientation induction machines in transient behavior when load and speed conditions are changing taking into account the effect of the main induction saturation. It is shown that by appropriately managing the flux linkage rate of change the energy losses per full operation cycle under torque changes can be significantly reduced compared to the conventional cases. The analysis for the appropriate choice of the filter time constant as a fraction of the rotor time constant is based on a numerical study and simulation results for three different induction machines with different rated powers.

scholarly journals Simple dynamic loss-minimizing flux level control of field-orientation induction motor drives

2020 ◽  
pp. 303-305
Author(s):  
Hryhorii Diachenko ◽  
Oleksandr Aziukovskyi
Keyword(s):  
Time Constant ◽  
Numerical Study ◽  
Transient Behavior ◽  
Induction Machines ◽  
Rate Of Change ◽  
Level Control ◽  
Field Orientation ◽  
Adaptive Choice ◽  
Dynamic Loss ◽  
Operation Cycle

The current paper discusses the adaptive choice of a filter time constant for filtering the steady-state flux reference in the energy-efficient control problem of field-orientation induction machines in transient behavior when load and speed conditions are changing taking into account the effect of the main induction saturation. It is shown that by appropriately managing the flux linkage rate of change the energy losses per full operation cycle under torque changes can be significantly reduced compared to the conventional cases. The analysis for the appropriate choice of the filter time constant as a fraction of the rotor time constant is based on a numerical study and simulation results for three different induction machines with different rated powers.

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