Sensorless control of interior permanent-magnet machine drives with zero-phase lag position estimation
Бездатчиковое управление приводами с машиной с внутренними постоянными магнитами и оцениванием положения без фазового запаздывания
2003-11-01
SCID: 54.1/2pt5z2q7
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Interior permanent-magnet machineRotor motion state estimationSaliency-based electromotive forceSensorless controlZero-phase lag observer
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Abstract (AI)
This paper presents an improved method to estimate rotor motion states for an interior permanent-magnet machine drive. This approach is based on the estimation of a saliency-based electromotive force (EMF) in the stationary reference frame using a state filter. The spatial information obtained from the estimated saliency-based EMF is used in an observer to estimate the motor motion states. By using the commanded torque as a feedforward input to the observer, the motion state estimation has zero-phase lag, providing a very-high-bandwidth estimate.
Key Findings
1
A state filter estimates the saliency-based EMF in the stationary reference frame, providing spatial information for motion-state observation.
2
An improved sensorless method estimates rotor motion states in interior permanent-magnet machine drives using saliency-based EMF estimation.
3
The observer uses commanded torque as a feedforward input to achieve zero-phase-lag rotor motion-state estimation.
4
The proposed approach provides a very-high-bandwidth estimate of motor motion states without requiring a position sensor.
Research Object
interior permanent-magnet machine drive
Research Subject
sensorless rotor motion-state estimation with zero-phase lag and very high bandwidth using saliency-based EMF
Publication Details
Publication Date
2003-11-01
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