Speed-sensorless control of induction motors based on adaptive EKF

Tian, Lisi; Li, Zhaoxun; Wang, Zaixiang; Sun, Xiaoxu; Guo, Tong; Zhang, Hao

doi:10.1007/s43236-021-00325-6

Cited by 5 publications

(2 citation statements)

References 27 publications

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“…However, due to its reliance on the salient polarity of the motor, this method often fails for surface permanent magnet synchronous motors (SPMSM) with weak salient polarity. The estimation methods based on back EMF primarily consist of a model reference adaptive system [ 9 ], sliding mode observer [ 10 ], extended Kalman filter observer [ 11 ], etc. These methods obtain rotor position data using the back-EMF mathematical model of the motor, which is better suited for providing precise estimates at medium and high speeds [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

An Improved Sensorless Hybrid Control Method of Permanent Magnet Synchronous Motor Based on I/F Startup

Ning

Zhao

Cheng

2023

Sensors

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To realize permanent magnet synchronous motor (PMSM) in the full speed domain without speed sensor operation, a hybrid control method combining I/F startup and extended Kalman filter (EKF) is proposed in this paper. This method employs I/F startup to transition at low speed, effectively resolving the issue that the position estimation method based on the back electromotive force (EMF) model fails at zero speed and low speed, and converts to EKF for speed closed-loop vector control at medium and high speed. Moreover, a new feedback regulation mechanism as a solution to the problem of smooth switching between the two methods is proposed. First, the power angle is determined based on the relationship between the given I/F frequency and the estimated EKF position angle. Using the information of power angle, the damping torque of the system is increased to reduce velocity fluctuations during I/F startup. In addition, the balance point of current and position error angle is adjusted using the closed-loop information of position error angle to reduce the torque abrupt change before and after switching, thereby making the motor switching process to EKF speed closed-loop control more stable. Finally, simulation results are used to verify the effectiveness of the proposed scheme.

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Section: Introductionmentioning

confidence: 99%

An Improved Sensorless Hybrid Control Method of Permanent Magnet Synchronous Motor Based on I/F Startup

Ning

Zhao

Cheng

2023

Sensors

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“…In recent studies on the estimation and identification of IM parameters using KF and its extensions, speed estimation of IM for employing speed sensorless control has been considerable [23,[28][29][30][31][32][33]. Table 1 presents a brief review of some studies of various types of KFs used to estimate IM parameters.…”

Section: Introductionmentioning

confidence: 99%

Introducing Improved Iterated Extended Kalman Filter (IIEKF) to Estimate the Rotor Rotational Speed, Rotor and Stator Resistances of Induction Motors

2023

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This paper introduces the Improved Iterated Extended Kalman Filter (IIEKF) for estimating the rotational speed, rotor resistance, and stator resistance of three-phase induction motors (IMs). Two state-space models for estimating the variables are presented. An optimal estimation of rotational speed is obtained by introducing a data fusion approach. The effectiveness of the IIEKF in comparison with the Extended Kalman Filter (EKF), using experimental data and in a wide range of operating conditions, is shown.

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Improved Flux Linkage Observer and Anti-Disturbance Transition for Wide-Speed Domain PMSM Sensorless Hybrid Control Strategy

Ding,

Li,

Tang

et al. 2024

J. Electr. Eng. Technol.

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Speed-sensorless control of induction motors based on adaptive EKF

Cited by 5 publications

References 27 publications

An Improved Sensorless Hybrid Control Method of Permanent Magnet Synchronous Motor Based on I/F Startup

An Improved Sensorless Hybrid Control Method of Permanent Magnet Synchronous Motor Based on I/F Startup

Introducing Improved Iterated Extended Kalman Filter (IIEKF) to Estimate the Rotor Rotational Speed, Rotor and Stator Resistances of Induction Motors

Improved Flux Linkage Observer and Anti-Disturbance Transition for Wide-Speed Domain PMSM Sensorless Hybrid Control Strategy

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