Exemple d''application de la logique floue : commande de la température d''un four pilote

Barrat, J.P.; Barrat, M.; Lecluse, Yves

doi:10.51257/a-v1-r7428

Cited by 1 publication

(6 citation statements)

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“…In this paper, the (α,β) frame of reference is immobile with respect to the machine stator. In general, this frame of reference is retained to implement the DTC method [22,[24][25][26]. The machine model in state form is given by the following system of equations [22,[26][27][28]:…”

Section: Asynchronous Machine Mathematical Modelmentioning

confidence: 99%

“…In general, this frame of reference is retained to implement the DTC method [22,[24][25][26]. The machine model in state form is given by the following system of equations [22,[26][27][28]:…”

Section: Asynchronous Machine Mathematical Modelmentioning

confidence: 99%

“…The equation of electromagnetic torque is expressed by D. Ikni and E. Raducan in [17], and it is represented in Equation ( 8), and the dynamics of the moving part of the machine can be found in Equation ( 9) [26,29].…”

Section: Asynchronous Machine Mathematical Modelmentioning

confidence: 99%

“…Direct torque control (DTC) is a technique increasingly used for controlling the voltage inverter-asynchronous machine system. This system can be considered as a hybrid dynamic system whose continuous component is the asynchronous machine and discrete component is the voltage inverter [26].…”

Section: Dtc Applied To Asynchronous Machinementioning

confidence: 99%

“…This control was introduced in 1985 by DEPENBROCK and TAKAHASHI [26]. The principle of this type of control is to ensure the flux and torque objectives; the latter are directly imposed by a judicious choice of the voltage vector imposed by the converter power supply.…”

Section: Dtc Applied To Asynchronous Machinementioning

confidence: 99%

See 4 more Smart Citations

Stability Analysis of a Wind Turbine Controlled by Direct Torque Control

Ikni,

Raducan

2024

Energies

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Increasingly, electricity network managers, through their grid codes, require renewable energy production systems to participate in system services, which includes requirements such as the stability of these production systems, the quality of the energy injected into the networks, the ability to withstand voltage dips, etc. To meet these requirements, the use of appropriate commands for the control of the production systems is necessary. Various control methods have been proposed, among which direct torque control (DTC) stands out. However, several studies have highlighted the impact of parametric variations on this control method. The contribution of the work presented in this article is the improvement of DTC when combined with a fuzzy estimate applied to a wind production system based on an asynchronous machine. Robustness tests were simulated to highlight the sensitivity of this control to variations in the stator resistance of asynchronous machines. To make this command robust and stable, a fuzzy estimator was used with this command. The simulation results demonstrated that this combination (DTC with a fuzzy estimator) makes the wind system more stable. To assess the effectiveness of the proposed solution, the root mean square error index was used.

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