Online-Identification of Electromagnetic Parameters  of an Induction Motor

Tytiuk, Valerii; Барановская, М. Л.; Черный, А. П.; Бурдильная, Е. В.; Kuznetsov, Vitaliy; Богатырев, К. Н.

doi:10.21122/1029-7448-2020-63-5-423-440

Cited by 7 publications

(3 citation statements)

References 24 publications

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“…The reference inputs must maximize electromagnetic torque in conditions of voltage source instability, particularly in field weakening region. The electromagnetic parameters of induction motor are assumed to be known from the on line identification [30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Reference Input Signals Formation for Induction Motor Control in Traction Drive

Opeiko

2023

Izv. vysh. ucheb

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The purpose of this work is to build the analytical improved (with resistances estimation) real time computation of the reference inputs for rotor flux and torque in the vector control system of an induction motor of a traction electric drive. The reference inputs must maximize electromagnetic torque in conditions of voltage source instability, particularly in magnetic field weakening mode. The conventional way to control the field weakening mode is to form flux coupling task inversely proportional to the speed or inversely proportional to the square of the speed in second and third zones respectively. Such reference input signals are not able to provide the maximum torque capability over the entire speed range, and the improved torque capability is achieved in different ways. For instance, voltage feedback is useful for the torque capability enhancement in conditions of internal and external perturbations. A wide change in speed with the weakening of the flux reveals the nonlinear properties of an induction electric motor. However, in vector control systems, proportional-integrating (PI) regulators are usually used. Therefore, firstly, linear PI controllers must be robust, and secondly, the reference input signals for flux and torque must guaranty linear, not saturated state of each PI controller. The proposed expressions for calculating reference inputs for induction motor rotor flux and electromagnetic torque as functions of actual rotor speed are the approximate expressions. The estimation of the possible error shows that the error is acceptable. Simulation is performed for the vector control system of an induction motor and taking into account the calculation of the control signal by the microcontroller and the dynamics of the frequency invertor. The simulation of the resulting system validates the effectiveness of the control system using the proposed expressions for the formation of real-time reference input signals for setting the flux and torque.

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Section: Introductionmentioning

confidence: 99%

Reference Input Signals Formation for Induction Motor Control in Traction Drive

Opeiko

2023

Izv. vysh. ucheb

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“…: Preventing the development of emergency modes of interlocked electric drives of ... [6][7][8][9][10][11][12][13][14]. However, the technical solutions they offer do not sufficiently solve the existing problems, and for many enterprises they are generally unacceptable, since they require large material investments [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Preventing the development of emergency modes of interlocked electric drives of a rolling mill under the impact loads

Druzhinin¹,

Sivyakova²,

Калинин³

et al. 2022

Diagnostyka

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In recent years, due to the tightening of competition in the global market of steel producers, the requirements for the quality of hot-rolled steel have increased. The finishing group of the rolling mill is characterized by a complex structure of mechanical and electrical parts. The operation of electric drive systems of such units is characterized by the interrelation of electromagnetic processes, mechanical phenomena and technological factors. As experimental studies have shown, the quality of the supply voltage is inextricably linked with the impact nature of the loads in the rolling stands of the roughing and finishing groups of the hot rolling mill. A decrease in the supply voltage may be accompanied by the development of emergency modes of synchronous electric drives, leading to a decrease in the quality of the finished product.The paper developed a mathematical model of the power supply system of the rolling mill JSC "ArcelorMittal Temirtau". It is shown that this can lead to loss of synchronism of the synchronous motor. Such a voltage drop has a significant impact on the operation of DC electric drives of the finishing group. Various strategies are proposed to counter the development of emergency situations.

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“…Введение. В настоящее время неразрушающий контроль асинхронного электропривода является перспективной областью для исследований [2,8]. Это обусловлено в равной степени распространенностью применения асинхронных двигателей (АД) в промышленности и постоянным стремлением к повышению экономической эффективности предприятий.…”

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Comparison of Induction Motor Parameters Estimation Methods

Tolmachev,

Makarov,

Tsvenger

et al. 2024

Vestn. Čuv. univ.

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It is known that induction motors are mostly applied type of motors in industry. Therefore, their digital twin development remains relevant. One of the main issues during digital twin development is induction motor parameters determination. There are a number of methods to determine these parameters with varying degree of accuracy. The purpose of the study is to find an induction motor parameters estimation method which allows one to create a digital twin of actual induction motor. Methods. MATLAB software was used to create induction motor simulation model in phase coordinates. To determine induction motor parameters via catalogue data, the methods suggested by the following authors were used: Kravchik A.E. (1982), Moshchinskii Yu.A. (1998), Myasovskii V.A. (2020). The object of research is the induction motor AIRM80A6U3 whose actual performance characteristics were obtained during experiment. Results. Using the developed mathematical model, and methods to determine the parameters of the induction motor via catalogue data, simulation has been applied to compare actual performance characteristics and those obtained as a result of simulation. To improve results accuracy, a series of experiments was performed for stator winding phase resistance identification. The most accurate method was chosen and obtained data were included in it. The paper contains graphical images for visual comparison of simulated and actual induction motor performance characteristics. Maximum relative and integrated errors are the convergence criteria of the model and real motor. These errors are tabulated for visual reference. By analyzing simulated induction motor performance characteristics, current, speed and maximum relative and integrated errors, a method was determined which identifies induction motor parameters with highest accuracy. Moreover, using that method with precise resistances of the stator winding makes it possible to reduce the speed integral and relative error by 2.5 times. Conclusions. A comparison of the results shows good convergence, which allows the method to be used for modeling induction motor drive systems.

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Online-Identification of Electromagnetic Parameters of an Induction Motor

Cited by 7 publications

References 24 publications

Reference Input Signals Formation for Induction Motor Control in Traction Drive

Reference Input Signals Formation for Induction Motor Control in Traction Drive

Preventing the development of emergency modes of interlocked electric drives of a rolling mill under the impact loads

Comparison of Induction Motor Parameters Estimation Methods

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