Improved DTC strategy of doubly fed induction motor using fuzzy logic controller

Ouanjli, Najib El; Motahhir, Saad; Derouich, Aziz; Ghzizal, Abdelaziz El; Chebabhi, Ali; Taoussi, Mohammed

doi:10.1016/j.egyr.2019.02.001

Cited by 92 publications

(57 citation statements)

References 23 publications

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“…So, the sliding mode is more suitable for systems with modeling uncertainties and variable parameters, or with the presence of large external disturbances. However, theses control techniques suffer from chattering phenomena and the choice of the gains [20,21].…”

Section: Direct Torque Control Of Quasi Z-source Inverter Fed Inductimentioning

confidence: 99%

Direct torque control of an induction motor fed by a Quasi Z-source inverter

2020

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This study presents an adapted direct torque control (DTC) of an induction motor fed by a Quasi Z-source power inverter. Indeed, the Quasi Z-source structure is introduced in the power inverter in order to boost the DC-Link voltage. For this, the boost control is mainly based on the shoot-through states of the power inverter which two power switches can be turned on at the same time. In this context, a switching table for DTC is developed to ensure an independent control of the flux and the torque of the induction motor and to boost the DC-Link voltage. Thus, the sampling time should be shared alternatively between the boost of the DC-Link voltage and the control of the electromagnetic torque. Consequently, the developed system reduces both the boost floor and the number of the used power switches. Moreover, it ensures a high-performance induction motor control. The validation results have been carried out to prove the effectiveness of the developed control.

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Section: Direct Torque Control Of Quasi Z-source Inverter Fed Inductimentioning

confidence: 99%

Direct torque control of an induction motor fed by a Quasi Z-source inverter

2020

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“…The flux space is divided into six sectors of 60°each. The selection of the appropriate voltage vector is based on the control table shown in Table 1 [7]. The inputs of this table are the flux sector number and the outputs of hysteresis comparators.…”

Section: Fig 2 Voltage Vectors Delivered By the Two-level Invertermentioning

confidence: 99%

“…Several solutions have been proposed to minimize the ripples and to keep the frequency at constant value, for example: fuzzy logic controller (FLC), artificial neural network (ANN), space vector modulation (SVM) technique and predictive control (PC) have been applied to improve the conventional DTC of DFIM [7][8][9][10]. Nevertheless, the practical implementation of these methods is more complicated.…”

Section: Introductionmentioning

confidence: 99%

Direct torque control of doubly fed induction motor using three-level NPC inverter

Ouanjli

Derouich

Ghzizal

et al. 2019

Prot Control Mod Power Syst

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This article presents the direct torque control (DTC) strategy for the doubly fed induction motor (DFIM) connected to two three-level voltage source inverters (3LVSIs) with neutral point clamped (NPC) structure. This control method allows to reduce the torque and flux ripples as well as to optimize the total harmonic distortion (THD) of motor currents. The use of 3LVSI increases the number of generated voltage, which allows improving the quality of its waveform and thus improves the DTC strategy. The system modeling and control are implemented in Matlab/ Simulink environment. The analysis of simulation results shows the better performances of this control, especially in terms of torque and flux behavior, compared to conventional DTC.

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“…The most installed machine in wind farms is the doubly-fed induction generator (DFIG) and the permanent magnet synchronous generator (PMSG). Actually, the DFIG is the widely generator employed because it presents several advantages [3][4][5] the power electronics converters connecting between the network and the rotor use a part of the total rated power, typically about (30%), which reduces the costs and loss, and it has the flexibility for controlling the reactive and active powers independently, in addition, the operating on the variable speed makes possible to maximize the efficiency of the energy produced. The structure of a doubly-fed induction aero-generator is presented in Fig.…”

Section: Introductionmentioning

confidence: 99%

A direct power control of a DFIG based-WECS during symmetrical voltage dips

Mensou

Essadki

Nasser

et al. 2020

Prot Control Mod Power Syst

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The Wind Energy Conversion System (WECS) based Doubly Fed Induction Generator (DFIG) has experienced a rapid development in the world, which leads to an increasing insertion of this source of energy in the electrical grids. The sudden and temporary drop of voltage at the network can affect the operation of the DFIG; the voltage dips produce high peak currents on the stator and rotor circuits, without protection, the rotor side converter (RSC) will suffer also from over-current limit, consequently, the RSC may even be destroyed and the generator be damaged. In this paper a new Direct Power Control (DPC) method was developed, in order to control the stator powers and help the operation of the aero-generator during the faults grid; by injecting the reactive power into the network to contribute to the return of voltage, and set the active power to the optimum value to suppress the high peak currents. The DPC method was designed using the nonlinear Backstepping (BS) controller associated with the Lyapunov function to ensure the stability and robustness of the system. A comparison study was undertaken to verify the robustness and effectiveness of the DPC-BS to that of the classical vector control (VC) using Proportional-Integral (PI) correctors. All were simulated under the Simulink® software.

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Improved DTC strategy of doubly fed induction motor using fuzzy logic controller

Cited by 92 publications

References 23 publications

Direct torque control of an induction motor fed by a Quasi Z-source inverter

Direct torque control of an induction motor fed by a Quasi Z-source inverter

Direct torque control of doubly fed induction motor using three-level NPC inverter

A direct power control of a DFIG based-WECS during symmetrical voltage dips

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