Position-sensorless operation of brushless permanent-magnet machines &amp;#x2014; A review

Krishna, Aneesh; Kumar, S. Suresh

doi:10.1109/icgccee.2014.6922435

Cited by 2 publications

(1 citation statement)

References 90 publications

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“…The armature inductance of linear motor changes periodically with the relative position of primary and secondary, which also leads to the change of armature current. Hence, the position can be expressed as a function of the rate of armature current change [7] . However, this method is suitable for the motor with a certain saliency rate.…”

Section: Introductionmentioning

confidence: 99%

Sensorless Control of Permanent-Magnet Linear Synchronous Motor Based on Modified Linear Extended State Observer

et al. 2021

2021 13th International Symposium on Linear Drives for Industry Applications (LDIA)

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Permanent-Magnet Linear Synchronous Motor (PMLSM) transforms electric energy into linear mechanical kinetic energy without transmission mechanism which is widely used in rail transmit due to its merits of high efficiency, relatively low losses and simple mechanism. In the field oriented control of the linear motor, high-precision speed and position information are required. However, the installation of the linear grating increases the cost and complexity of the system, reduces anti-disturbance ability for mechanical structures, which may directly affect the control performance. In this paper, based on the sensorless control method, a modified linear extended state observer (MLESO) is proposed and utilized to estimate the back electromotive force. Then, the linear active rejection disturbance control (LADRC) is used to estimate and compensate system dynamics and disturbances to enhance disturbance rejection and stability of the PMLSM system. Moreover, the feedforward controller (FFC) is introduced to improve the response speed of the PMLSM. The simulation results certify that the proposed strategy has the superiority to the conventional sensorless control method.

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Section: Introductionmentioning

confidence: 99%

Sensorless Control of Permanent-Magnet Linear Synchronous Motor Based on Modified Linear Extended State Observer

et al. 2021

2021 13th International Symposium on Linear Drives for Industry Applications (LDIA)

View full text Add to dashboard Cite

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Speed and Position Estimation for Sensorless Control of PMSM: A Critical Review

Singh

Tiwari

Singh

2020

EEENG

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: Vector control scheme widely used for control purpose of PMSM drives require rotor position information. Generally, sensors are used for this purpose, which increases cost, size and complexity of the system and also reduces the efficiency of drives. So it becomes essential to avoid the use of these sensors and go for sensorless drives. In this paper several speed and position estimation techniques are reviewed for sensorless control with their recent developments and their inherent advantages and disadvantages.

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Position-sensorless operation of brushless permanent-magnet machines — A review

Cited by 2 publications

References 90 publications

Sensorless Control of Permanent-Magnet Linear Synchronous Motor Based on Modified Linear Extended State Observer

Sensorless Control of Permanent-Magnet Linear Synchronous Motor Based on Modified Linear Extended State Observer

Speed and Position Estimation for Sensorless Control of PMSM: A Critical Review

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