An Improved DTC Technique for Low-Speed Operation of a Five-Phase Induction Motor

Payami, Saifullah; Behera, Ranjan Kumar

doi:10.1109/tie.2017.2652397

Cited by 74 publications

(47 citation statements)

References 30 publications

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“…There are several control systems that were implemented in connection with five-phase induction motors, i.e., field-oriented control (Wilczynski et al, 2017a), direct torque control (Payami and Behera, 2017) and multiscalar model based (Adamowicz et al, 2015(Adamowicz et al, , 2016. In order to benefit from the third harmonic injection, two independent control systems for every orthogonal plane have to be implemented.…”

Section: Sensorless Control Based On Multiscalar Variables With Thirdmentioning

confidence: 99%

Open-Phase Fault Detection Method for Sensorless Five-Phase Induction Motor Drives with an Inverter Output Filter

Strankowski

Guziński

Wilczyński

et al. 2019

Power Electronics and Drives

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The paper presents the sensorless five-phase induction motor drive implementation with an inverter output filter with third harmonic injection. For the sensorless operation, the required observers are presented for the first and third harmonics with consideration of the inverter output filter. Moreover, the interaction of the observers and the control system is capable to handle a deactivation of one or two phases, which improves the reliability of the complete drive system. A new idea of online open-phase fault detection is presented based on the frequency analysis of the estimated observer variables. The test setup, fault operation capabilities and an experimental verification of the proposed fault detection method are presented in the paper.

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Section: Sensorless Control Based On Multiscalar Variables With Thirdmentioning

confidence: 99%

Open-Phase Fault Detection Method for Sensorless Five-Phase Induction Motor Drives with an Inverter Output Filter

Strankowski

Guziński

Wilczyński

et al. 2019

Power Electronics and Drives

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“…Multiphase generators have many advantages in comparison with their counterpart, three‐phase generators. Their benefits include: reducing the amplitude of torque ripple, increasing the frequency of torque pulsations, power segmentation, higher reliability, and fault tolerance capability 2‐4 . These attractive properties allow multiphase generators to be an exciting candidate for grid‐connected and stand‐alone applications 5 .…”

Section: Introductionmentioning

confidence: 99%

Sliding mode control of grid‐connected wind energy system driven by 2 five‐phase permanent magnet synchronous generators controlled by a new fifteen‐switch converter

Kamel

Djahbar

Barkat

et al. 2020

Int Trans Electr Energ Syst

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Summary This article presents a new wind energy system using 2 five‐phase permanent magnet synchronous generators (PMSGs) controlled by a fifteen‐switch rectifier (FSR) topology for grid‐connected system. The 2 five‐phase PMSGs are connected to the DC link through a FSR; at its turn, the DC link is connected to the grid through a classical three‐phase inverter. In order to boost the control performance of the proposed wind system, a sliding mode control is adopted to control both generators‐side and grid‐side converters. The proposed control is tested under varying wind velocity and compared with a proportional‐ and integral (PI)‐based control system. The obtained simulation results show that the controlled variables follow their references independently of the wind speed fluctuations; and there is a significant reduction in the speeds overshoots by 100% and in the DC‐link voltage ripples by more than 78%. In addition, the total harmonic distortion (THD) of the generated current and grid current are reduced to 7.19% and 47.80% compared with PI regulators, respectively.

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“…Although these control methods have a different principle, but it leads to achieve the same main goal consisting of decoupled control between flux and torque, similar to a DC machine with separate excitation. One of these strategies is the direct torque control [5][6][7][8][9]. It has a simple control structure, because it does not require the use of inner current control loops, pulse width modulation block and less parameters dependence; this leads to give a good dynamic performance compared to vector control.…”

Section: Introductionmentioning

confidence: 99%

Optimum Design of Fractional Order PIᵅ Speed Controller for Predictive Direct Torque Control of a Sensorless Five-Phase Permanent Magnet Synchronous Machine (PMSM)

Bounasla¹,

Barkat²

2020

JESA

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In both direct torque control (DTC) and predictive direct torque control (PDTC) strategies, just single voltage vector is applied. The question arose, is this applied vector the optimumin terms of minimizing torque and stator flux ripples? In DTC, it may not be the optimum one. However, in case of PDTC, there is a possibility to evaluate the performance of different voltage vectors, where a cost function is proposed to determine the appropriate voltage vector that brings the lowest torque and stator flux ripple within one cycle. On the other hand, PI controller provides a good performance but if the parameters change, the system may lose its performance. With the aim of enhancing the robustness of the PDTC scheme, a fractional order PI controller is proposed that can be considered as a generalization of the classical PI controller, and to set its parameters, a Grey Wolf Optimization algorithm is employed. Furthermore, omitting the sensor increases reliability and decrease the size and cost of the drive system. For these reasons, an extended Kalman filter observer is adopted, where the rotor speed and rotor position as well as the load torque are estimated. In this work, a fractional order PI controller tuned by GWO for PDTC of a five-phase permanent magnet synchronous machine (PMSM) based on EKF observer is presented. Analysis of simulation results exhibit clearly the efficiency and robustness of the suggested control compared to conventional DTC based on classical PI controller.

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An Improved DTC Technique for Low-Speed Operation of a Five-Phase Induction Motor

Cited by 74 publications

References 30 publications

Open-Phase Fault Detection Method for Sensorless Five-Phase Induction Motor Drives with an Inverter Output Filter

Open-Phase Fault Detection Method for Sensorless Five-Phase Induction Motor Drives with an Inverter Output Filter

Sliding mode control of grid‐connected wind energy system driven by 2 five‐phase permanent magnet synchronous generators controlled by a new fifteen‐switch converter

Optimum Design of Fractional Order PIᵅ Speed Controller for Predictive Direct Torque Control of a Sensorless Five-Phase Permanent Magnet Synchronous Machine (PMSM)

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