An Improved Sliding Mode Observer for Speed Sensorless Vector Control Drive of PMSM

Paponpen, Kittithuch; Konghirun, Mongkol

doi:10.1109/ipemc.2006.4778137

Cited by 57 publications

(15 citation statements)

References 3 publications

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“…Numerous observer strategies are developed to estimate the states and the parameters of PMSM, such as adaptive observer [1], [2], sliding mode observer [3], [4], [5], [6] and Extended Kalman filter [7], [8], [9], [10]. Recently in [11], [12] an adaptive interconnected observer has been proposed.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear observer for the PM synchronous motor

Tami

Boutat

Zheng

2014

2014 American Control Conference

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Abstract-This paper deals with nonlinear states and parameters estimation of a permanent magnet synchronous motor (PMSM) without mechanical sensors. In the proposed method, a change of coordinates is established in order to transform the PMSM system into an observer form which enables us to apply an adaptive or a high gain observer. Then the load torque, rotor speed and some parameters can be estimated from both measurable currents and voltages. The efficiency of the proposed methods is illustrated by the simulation results.

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Section: Introductionmentioning

confidence: 99%

Nonlinear observer for the PM synchronous motor

Tami

Boutat

Zheng

2014

2014 American Control Conference

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“…The sliding mode observers [6][7][8] are proposed to estimate the position and speed of a permanent magnet synchronous motor (PMSM) by the estimated back-emfs. The proposed observers are derived from traditional current model and most employed the discontinuous switching function in sliding mode control.…”

Section: Introductionmentioning

confidence: 99%

“…More importantly, much harmonic components among the estimation of back-emf degrade the estimation accuracy of the rotor position. To estimate accuracy rotor position, a simplified Kalman filter [6][7] or a low pass filter [8] was used to eliminate the high frequency components to estimate the rotor position in the traditional sliding mode observer. To reduce the undesirable chattering in the traditional sliding mode technique, a sigmoid switching function [8] with a variable boundary layer was used to replace the traditional sign function.…”

Section: Introductionmentioning

confidence: 99%

An Improved Flux Observer for Sensorless Permanent Magnet Synchronous Motor Drives with Parameter Identification

Lin¹,

Hwang²,

Kwon³

2013

Journal of Electrical Engineering and Technology

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-This paper investigates an improved stator flux linkage observer for sensorless permanent magnet synchronous motor (PMSM) drives using a voltage-based flux linkage model and an adaptive sliding mode variable structure. We propose a new observer design that employs an improved sliding mode reaching law to achieve better estimation accuracy. The design includes two models and two adaptive estimating laws, and we illustrate that the design is stable using the Popov hyper-stability theory. Simulation and experimental results demonstrate that the proposed estimator accurately calculates the speed, the stator flux linkage, and the resistance while overcoming the shortcomings of traditional estimators.

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“…Filtering of estimated signals is needed for better performance. More details about SMO are found in [8], where an improved SMO for sensorless vector control is proposed to reduce chattering; it is based on replacing discontinuous function by a sigmoid function. Among recent sensorless techniques, a nonlinear observer was proposed and tested by Ortega et al in [9] and [10], and it shows promising results.…”

Section: Introductionmentioning

confidence: 99%

A real-time observer for UAV's brushless motors

Koteich

Moing²,

Janot³

et al. 2013

2013 IEEE 11th International Workshop of Electronics, Control, Measurement, Signals and Their Application to Mechatronics

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Abstract-Vector control has been widely used in control of permanent magnet synchronous motors (PMSM). This technique requires an accurate knowledge of the rotor position. In many applications, such as mini-UAV, it is not possible to install any mechanical sensor. Therefore, a sensorless technique using position observer has to be implemented in order to estimate the rotor position. In this paper, we propose a new observer for PMSM sensorless control: the position estimate is generated upon electromagnetic relations (dynamics of magnetic flux in the motor) in the two-phase stationary reference frame. The implementation of the proposed observer is not a real burden; its validity is experimentally tested and satisfactory results are obtained regarding real position (and speed set-point) tracking in different operating situations.

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An Improved Sliding Mode Observer for Speed Sensorless Vector Control Drive of PMSM

Cited by 57 publications

References 3 publications

Nonlinear observer for the PM synchronous motor

Nonlinear observer for the PM synchronous motor

An Improved Flux Observer for Sensorless Permanent Magnet Synchronous Motor Drives with Parameter Identification

A real-time observer for UAV's brushless motors

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