Sensorless-adaptive DTC of double star induction motor

This paper presents a sensor less control technique of a directly driven wind synchronous generator. This approach is based on the adaptive sliding mode flux observer and on the adaptive speed estimator. Two sensorless control strategies are applied to the Permanent Magnet Synchronous Generator (PMSG): in the first step, we have considered the vector (VC) strategy and in the second one, we have applied the sliding mode control (SMC) strategy. Simulation results investigate good performances of both proposed non linear approaches. Keywords Permanent Magnet Synchronous Generator, wind turbine, sensorless control, vector control, sliding mode control, sliding mode observer, speed estimator I.

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“…Consequently, based on the generator dynamic equations, the observer is developed as follows [19,20]:…”

Section: A Formulation Of the Smfomentioning

confidence: 99%

Sensorless control with an adaptive sliding mode flux observer applied to wind PMSG system

Emna

Kheder

2014

2014 15th International Conference on Sciences and Techniques of Automatic Control and Computer Engineering (STA)

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“…Asynchronous motors particularly induction motors are widely used in variable speed drive systems due to their low cost and construction simplicity. The direct torque control technique (DTC) introduced in 1985 is an attractive approach due to its effectiveness and implementation simplicity as demonstrated by several studies [1][2][3][4][5][6]. Therefore, this technique enables the control variables computation (stator flux and electromagnetic torque) from stator current measurements without using mechanical sensor.…”

Section: Introductionmentioning

confidence: 99%

Direct Torque Control of Induction Motor Fed by Three-level Inverter Using Fuzzy Logic

Berrabah¹,

Chebabhi²,

Zeghlache³

et al. 2017

AMA_C

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The present paper describes the direct torque sensor less speed control of induction motor fed by three-level voltage source inverter. Inverter switches control is based on fuzzy logic control. Compared to conventional direct torque control (DTC), hysteresis controllers, flux position and voltage vector selection table are replaced by fuzzy logic blocks to realize a DTC-fuzzy control. The obtained results have showed high speed performance, reduced torque and flux fluctuations when the proposed DTC-fuzzy strategy is used for the control of three-level voltage source inverter associated with induction machine.

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“…Due to its robustness, the simplicity of its structure, its low cost and which does not need a regular maintenance, the induction motors are commonly used in many industrial applications in a wide range. The improvement of the power electronics and the advance of technologies of numerical controls improve its performance related torque and its controllability [1]. Today several approaches have still been developed and various studies have been carried out in order to develop the performance (torque, efficiency etc.)…”

Section: Introductionmentioning

confidence: 99%

A Novel Slitted Tooth Core Design to Improve the Torque-Speed Characteristic of Squirrel Cage Induction Motor

Yetgin

2016

IJRET

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In this study, a new design was suggested in order to improve the performance of induction motors. In these new designs, slits were applied in the middle of stator and rotor tooth parts. In these slitted models, the depth and width of slits were optimized by Finite Element Method Magnetics (FEMM) by using Finite Elements Method (FEM). Starting torque, pull-out torque, rated torque and torque-speed characteristics of the new motor model formed with the proposed slitted construction and reference motor model are given in comparison. The motor model is made with 56 slits which have different depth and width to see the effects of slits in the stator and rotor. In modeling, 3 kW squirrel-cage induction motor was used. As a result of modeling, increase in the coupling flux provided 2.085% and 4% increase especially in pull-out and rated torque values respectively.

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Sensorless-adaptive DTC of double star induction motor

Cited by 37 publications

References 11 publications

Sensorless control with an adaptive sliding mode flux observer applied to wind PMSG system

Sensorless control with an adaptive sliding mode flux observer applied to wind PMSG system

Direct Torque Control of Induction Motor Fed by Three-level Inverter Using Fuzzy Logic

A Novel Slitted Tooth Core Design to Improve the Torque-Speed Characteristic of Squirrel Cage Induction Motor

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