A novel fixed-switching-frequency DTC for PMSM drive with low torque and flux ripple based on Sinusoidal Pulse With Modulation and predictive controller

Chikh, Khalid; Khafallah, Mohamed; Saâd, Abdallah; Yousfi, Driss; Chaikhy, Hamid

doi:10.1109/icmcs.2012.6320189

Cited by 10 publications

(10 citation statements)

References 15 publications

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“…This technique is presented in Figure 10.b can be called symmetrical SVM. It's seen that this technique is to alternate the null vector in each sequence and reverse the sequence after each null vector, all that in each modulation period T m [7,20]. However, with this sequence strategy the 3 legs inverter are in commutation which generates 8 switching states in each T m .…”

Section: Space Vector Modulationmentioning

confidence: 99%

“…However, for some applications, the DTC has become unusable although it significantly improves the dynamic performance (fast torque and flux responses) of the drive and is less dependent on the motor parameters variations compared to the classical vector control (FOC) due to torque and flux ripples [7]- [8]. Indeed, hysteresis controllers used in the conventional structure of the DTC generates a variable switching frequency, causing electromagnetic torque oscillations.…”

Section: Introductionmentioning

confidence: 99%

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A Constant Switching Frequency DTC for PMSM Using Low Switching Losses SVM–An Experimental Result

Chikh¹,

Saad²,

Khafallah³

et al. 2017

IJPEDS

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A Constant Switching Frequency Direct Torque Control (CSF-DTC) with low switching losses Space Vector modulation (SVM) for Permanent Magnet Synchronous Motor (PMSM) drive is proposed in this work. The CSF-DTC combines Field Oriented Control (FOC) and basic DTC advantages. Indeed, the proposed control strategy improves the basic DTC performances, which features low flux and torque ripples as well as a fixed switching frequency. The improved DTC ensures also a fast and robust flux and torque responses by using Integral and Proportional (IP) controllers which guaranteed a good disturbance rejection.On the other hand, a symmetrical SVM technique with low switching losses in the PWM inverter is used in order to generate the desired stator voltage vector needed to control the stator flux and the motor torque. Simulation and experimental results are presentedin this paper.These results demonstrate well the performance of the basic and proposed DTC and they show the effectiveness of the constant switching frequency direct torque control.

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Section: Space Vector Modulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Constant Switching Frequency DTC for PMSM Using Low Switching Losses SVM–An Experimental Result

Chikh¹,

Saad²,

Khafallah³

et al. 2017

IJPEDS

View full text Add to dashboard Cite

show abstract

“…Output voltage of VSI can be framed by equation (4). Where Va, V b and V c are the output voltage of VSI and V DC is the input DC voltage.…”

Section: B Modelling Of Voltage Source Invertermentioning

confidence: 99%

“…DTC has simple calculation and no coordinate transformations. It only requires knowledge of stator resistance, which reduces the machine parameter dependency [3][4][5][6][7][8]. But basic DTC has some disadvantages; switching frequency of inverter varies with error band speed of the motor [9].…”

Section: Introductionmentioning

confidence: 99%

Torque ripple minimization in three phase induction motor by fuzzy logic controller based DTC-SVM

Kurian¹,

Premalatha²

2014

2014 International Conference on Green Computing Communication and Electrical Engineering (ICGCCEE)

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This paper proposes fuzzy Logic controller (FLC) based Direct Torque Controller (DTC) with Space Vector Modulation (SVM) for three phase induction motor. Fuzzy logic controller regulates alteration in the load angle between stator and rotor flux vectors in accordance with electromagnetic torque change. The reference stator flux has been obtained from load angle, change in load angle and the stator flux magnitude. Stator voltage to be supplied to the induction motor is based on stator flux error. Low torque and flux ripple and constant switching frequency are acquired using DTC-SVM. This method requires only one fuzzy controller and simple calculations, hence this strategy is very easy to implement. The proposed system is developed and analyzed using MATLAB/SIMULINK. Simulation results show the effectiveness of the controller. Index Terms-Direct Torque Controller (DTC), Space vector modulation (SVM), Fuzzy Logic Controllers (FLC), Voltage Source Inverter (VSI)

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“…Most of the past research on DTFC based motor drives mainly concentrated on the development of the inverter control algorithms with less torque ripple as it is the major drawback of DTFC [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. In DTFC scheme the motor actual torque and air gap flux linkage values are compared with their corresponding reference values.…”

Section: Introductionmentioning

confidence: 99%

Online Loss-Minimization-Based Adaptive Flux Observer for Direct Torque and Flux Control of PMSM Drive

Uddin

Zou

Azevedo

2016

IEEE Trans. on Ind. Applicat.

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This paper presents a novel adaptive flux observer based direct torque and flux control (DTFC) of permanent magnet synchronous motor (PMSM) drive. An online loss minimization algorithm (LMA) is developed to estimate the airgap flux so that the motor operates at minimum loss condition while taking the general advantages of DTFC scheme over conventional vector control scheme. The proposed DTFC based PMSM drive incorporating the LMA based flux observer is implemented in real-time using the DSP board DS1104 for a laboratory 5 hp motor. The performance of the proposed LMA based DTFC control of PMSM drive is tested in both simulation and experiment at different operating conditions. 0093-9994 (c) Keywords-Direct torque & flux control, loss minimization, dynamic response, interior permanent magnet synchronous motor, speed control and adaptive flux observer.

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A novel fixed-switching-frequency DTC for PMSM drive with low torque and flux ripple based on Sinusoidal Pulse With Modulation and predictive controller

Cited by 10 publications

References 15 publications

A Constant Switching Frequency DTC for PMSM Using Low Switching Losses SVM–An Experimental Result

A Constant Switching Frequency DTC for PMSM Using Low Switching Losses SVM–An Experimental Result

Torque ripple minimization in three phase induction motor by fuzzy logic controller based DTC-SVM

Online Loss-Minimization-Based Adaptive Flux Observer for Direct Torque and Flux Control of PMSM Drive

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