Improving the Steady-State and Transient-State Performances of PMSM Through an Advanced Deadbeat Direct Torque and Flux Control System

Vafaie, Mohammad Hossein; Dehkordi, Behzad Mirzaeian; Moallem, Payman; Kiyoumarsi, Arash

doi:10.1109/tpel.2016.2577591

Cited by 71 publications

(38 citation statements)

References 34 publications

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“…The amplitude and the angle of the stator flux vector are calculated according to (27) and (28). Fig.…”

Section: Mdtc-svmmentioning

confidence: 99%

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A Novel Modified DTC-SVM Method with Better Overload-capability for Permanent Magnet Synchronous Motor Servo Drives

Vajsz¹,

Számel²,

Rácz³

2017

Period. Polytech. Elec. Eng. Comp. Sci.

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Direct torque control with space vector modulation (DTC-SVM IntroductionDirect torque control with space vector modulation is a modification of the original direct torque control (DTC) method [1][2][3]. The excellent dynamic torque-control capabilities of traditional DTC are well known in the literature for permanent magnet synchronous motors and for other motor types as well [4][5][6][7][8][9]. However, there are serious disadvantages and among them the most important are: varying switching frequency and the excessive amount of torque-ripple generated [10][11][12]. DTC-SVM solves these problems, as it uses fixed switching frequency and the torque-ripple is significantly reduced compared to DTC, while the dynamics of the torque-control is essentially identical to that of traditional DTC [13][14][15]. Therefore, DTC-SVM is currently considered as one of the most promising alternatives of the nowadays widely used field-oriented control [16,17].DTC-SVM was introduced in [1][2][3]. These publications highlighted the main advantages of DTC-SVM. Since then many investigations have been carried out for this method. Special applications requiring high dynamic performance, excellent efficiency and high precision have been examined such as artillery speed servo systems [18], electric vehicles [19], electric pitch servo systems for wind generators [20]. Also, asymmetric permanent magnet synchronous machines have been investigated and special solutions have been invented for these machines [21]. In order to improve the performance of DTC-SVM several modifications have been developed. Most of the modifications aim at reducing the torque-ripple, increasing the dynamic performance and the efficiency of the method [22][23][24][25][26][27][28]. Sensorless methods using extended Kalman-filter have also been invented [29].However, the overload-capabilities of DTC-SVM and its stability during overloading have not been investigated yet. This article deals with these issues and suggests a modified DTC-SVM (MDTC-SVM) method which has significantly improved overload-capabilities and it is stable during overloading.

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“…The amplitude and the angle of the stator flux vector are calculated according to (27) and (28). Fig.…”

Section: Mdtc-svmmentioning

confidence: 99%

“…In order to improve the performance of DTC-SVM several modifications have been developed. Most of the modifications aim at reducing the torque-ripple, increasing the dynamic performance and the efficiency of the method [22][23][24][25][26][27][28]. Sensorless methods using extended Kalman-filter have also been invented [29].…”

Section: Introductionmentioning

confidence: 99%

A Novel Modified DTC-SVM Method with Better Overload-capability for Permanent Magnet Synchronous Motor Servo Drives

Vajsz¹,

Számel²,

Rácz³

2017

Period. Polytech. Elec. Eng. Comp. Sci.

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“…[9] proposes the loss minimization DB-DTFC from the point of loss and proved the validity of the method. Based on DTC-SVM , reference [10] proposes an optimal deadbeat control method which combined adjacent voltage vectors with optimal voltage vectors. Although DB-DTFC is widely used and developed in other motors, the application of DB-DTFC in SRM has been greatly limited.…”

Section: Introductionmentioning

confidence: 99%

Minimization torque ripple for SRM based on flux linkage partition in DB-DTFC

Shang

et al. 2020

MATEC Web Conf.

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This paper proposes a novel deadbeat torque and flux control (DB-DTFC) to reduce torque ripple for switched reluctance motor (SRM). DB-DTFC combines the advantages of direct torque control (DTC) and space-vector modulation (SVM). DB-DTFC leads current vector control into DTC in order to find the equation between torque and current through deadbeat prediction theory i.e. a beat reaches a given point. In addition, the deadbeat calculation module here is similar to that of permanent magnet synchronous motor. Based on dq0 reference frame of SRM, the most suitable dq0 axis current of next moment corresponding to different torque errors is calculated and predicted. According to the calculated dq0 axis current, the optimal space voltage vectors can be selected to reduce torque ripple. In order to verify the effectiveness and correctness of the proposed scheme, DB-DTFC is verified and compared with the DTC-SVM by simulation.

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“…Permanent magnet synchronous machines (PMSMs) with advantages of high efficiency, high torque density and good dynamic performance, have been employed in many industrial areas [1][2][3]. Direct torque control (DTC) is one of the most popular control strategies for PMSM due to its fast dynamic response and simple structure [4].…”

Section: Introductionmentioning

confidence: 99%

An Improved Two-Vector Model Predictive Torque Control Based on RMS Duty Ratio Optimization for PMSM

Yao

et al. 2019

2019 IEEE International Electric Machines &Amp; Drives Conference (IEMDC)

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This paper proposes an improved two-vector modelpredictive torque control (MPTC) strategy to reduce the average torque ripple and improve the flux tracking performance. When determining the duty ratio of vector combination, this method aims at restricting the root mean square (RMS) error of both torque and flux during the whole control period. Every vector combination and corresponding time duration are evaluated in the cost function, which leads to global restriction of torque ripple and flux ripple. In order to avoid increasing switching frequency and computational burden, a restriction is added on the second vector. The three candidates of the second vector are the two adjacent vectors of the first one and zero vector. Simulation results are provided to show the effectiveness of the proposed strategy.

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Improving the Steady-State and Transient-State Performances of PMSM Through an Advanced Deadbeat Direct Torque and Flux Control System

Cited by 71 publications

References 34 publications

A Novel Modified DTC-SVM Method with Better Overload-capability for Permanent Magnet Synchronous Motor Servo Drives

A Novel Modified DTC-SVM Method with Better Overload-capability for Permanent Magnet Synchronous Motor Servo Drives

Minimization torque ripple for SRM based on flux linkage partition in DB-DTFC

An Improved Two-Vector Model Predictive Torque Control Based on RMS Duty Ratio Optimization for PMSM

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