Speed sensorless direct torque control of IMs with rotor resistance estimation

Barut, Murat; Boğosyan, Seta; Gökaşan, Metin

doi:10.1016/j.enconman.2004.04.002

Cited by 60 publications

(27 citation statements)

References 16 publications

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“…The scheme of sensorless control of PMSM is very similar to sensor control (Barut, et al 2005;Bolognani et al, 2003;Dhaouadi et al, 1991;Janiszewski, 2004Janiszewski, , 2005. Proposed scheme is presented on Figure 5.…”

Section: Sensorless Controlmentioning

confidence: 99%

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Extended Kalman Filter Based Speed Sensorless PMSM Control with Load Reconstruction

Janiszewski

2006

IECON 2006 - 32nd Annual Conference on IEEE Industrial Electronics

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Permanent magnet synchronous motor drives Permanent magnet synchronous motorThe Permanent Magnet Synchronous Motor is a rotating electric machine where the stator is a classic three phase coils like that of an induction motor and the permanent magnets are located on the rotor surface. A PMSM provides rotation at a fixed speed in synchronization with the frequency of the power source, regardless of the fluctuation of the load or line voltage. The motor runs at a fixed speed synchronous with mains frequency, at any torque up to the motor's operating limit. The PMSM consist stator windings and rotor permanent magnets sinusoidally distributed so Field Oriented Control can be used (Vas, 1990). From a control point of view, FOC is transfer and extension of DC motor control theory into PMSM. The basic concept is control by a excitation field and armature field-current (Vas, 1990). This type of machines are extensively used in servo drives for low power machine tool, e.g. robots, positioning devices etc. They are receiving increased attention by possibility to use in the region of larger power e.g. electricity generation. The following requirements for servo drives must be served:• high possible power to weight ratio, • large torque to inertia ratio -high acceleration possible, • smooth torque in wide speed -small pulsation of speed, • full torque at zero speed -stand still working, • high speed operation, • compact design and small size. New types of Permanent Magnet materials offer the ability to design electromagnetic energy converters with complicated shapes. Permanent magnets can be sticked or inserted to the small rotor. Rare-earth magnets are mostly used in modern drive. It can be obtained air-gap flux density in range of 1 T. PMSM are used in high-accuracy direct-drive applications mainly due to their advantages. Compared to conventional DC motors, they have no brushes or mechanical commutators, which eliminates the problems due to mechanical wear of the moving parts. In addition, the better heat dissipation characteristic and ability to operate at high speed render them superior to the PMSM drives. Vector control scheme of PMSMThe control scheme of PMSM is relative simple, proposed scheme is presented on Figure 2. www.intechopen.com The field-oriented controller is based on a current-controlled voltage source inverter structure (Vas, 1990;Janiszewski 2004;Terorde, 2002). The current control loops are arranged in the 2-phase synchronously rotating rotor reference frame d-q aligned with rotor flux (also rotor position g), while the rotor position and speed detection operates in the 2-phase stationary reference frame α . The dq-phase arrangement PMSM machine is similar to DC machine in operation. The excitation flux (Ψf) is frozen to the direct axis of the rotor and is associated with d axis. Equivalent of armature current in DC machine is associated with current in q axis. There is also assumed that the effect of any magnetic saturation is neglected during working and thus for modelling purposes the permanent ma...

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Section: Sensorless Controlmentioning

confidence: 99%

“…The value of external torque T load is treated as state variable (8) and part of disturbance vector w k (9) (Barut et al, 2005;Janiszewski, 2005Janiszewski, , 2006Terorde & Belmans, 2002;Zhu et al, 2000). This operation allows to estimate parameters of differential equations of model.…”

Section: Modelling Of the Systemmentioning

confidence: 99%

Extended Kalman Filter Based Speed Sensorless PMSM Control with Load Reconstruction

Janiszewski

2006

IECON 2006 - 32nd Annual Conference on IEEE Industrial Electronics

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“…Open-loop estimator, estimator with an adaptation scheme (model-reference adaptive system-MRAS) (Zorgani et al 2012), complete-or reduced-order observer in closed loop, extended Kalman filter (Barut et al 2005) and sliding mode observer are some estimators based on model more representative in related research (Buja et al 1997).…”

Section: Introductionmentioning

confidence: 99%

Differential Evolution Applied to DTC Drive for Three-Phase Induction Motors Using an Adaptive State Observer

Costa

Angélico

Goedtel

et al. 2015

J Control Autom Electr Syst

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This paper describes an application of the metaheuristic differential evolution in the drive of three-phase induction motors based on direct torque control and employs a Luenberger observer to estimate the stator flux linkage and rotor speed. In this context, the differential evolution is applied to adjust the gains of the controllers involved in the direct torque control and speed observer estimation loop, as well as the observer matrix. Firstly a proportional-integral controller with anti-windup is considered in speed control loop, whose gains are adjusted empirically and optimally by DE. Furthermore, differential evolution is also considered for optimizing the Luenberger observer parameters for stator current and flux, as well as rotor speed estimation. Simulation tests are presented in order to prove the effectiveness of the proposed method.

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“…Several papers addressed the problem of the online IM parameter estimation [1]- [13], [10], [14]. In [3], [6], [7], [10], [14], the problem of IM time-varying parameter has been studied but experiments have not been carried out to verify the effectiveness of the approaches. In [8], [9], and [13], interesting algorithms for IM parameter estimation are proposed using least square technique but more sophisticated filters are required when PWM inverter is used.…”

Section: Introductionmentioning

confidence: 99%

An Online Simplified Rotor Resistance Estimator for Induction Motors

Kenné

Simo

Lamnabhi-Lagarrigue

et al. 2010

IEEE Trans. Contr. Syst. Technol.

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Abstract-This brief presents an adaptive variable structure identifier that provides finite time convergent estimate of the induction motor rotor resistance under feasible persistent of excitation condition. The proposed rotor resistance scheme is based on the standard dynamic model of induction motor expressed in a fixed reference frame attached to the stator. The available variables are the rotor speed, the stator currents and voltages. Experiments show that the proposed method achieved very good estimation of the rotor resistance which is subjected to online large variation during operation of the induction motor. Also, the proposed online simplified rotor resistance estimator is robust with respect to the variation of the stator resistance, measurement noise, modeling errors, discretization effects and parameter uncertainties. Important advantages of the proposed algorithm include that it is an online method (the value of can be continuously updated) and it is very simple to implement in real-time (this feature distinguishes the proposed identifier from the known ones).Index Terms-Equivalent injection term, nonlinear observer, online parameter estimation.

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Speed sensorless direct torque control of IMs with rotor resistance estimation

Cited by 60 publications

References 16 publications

Extended Kalman Filter Based Speed Sensorless PMSM Control with Load Reconstruction

Extended Kalman Filter Based Speed Sensorless PMSM Control with Load Reconstruction

Differential Evolution Applied to DTC Drive for Three-Phase Induction Motors Using an Adaptive State Observer

An Online Simplified Rotor Resistance Estimator for Induction Motors

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