Direct instantaneous torque control of switched reluctance machines using 4-level converters

Liang, Jianing; Lee, D.-H.; Ahn, Jin-Woo

doi:10.1049/iet-epa.2008.0002

Cited by 61 publications

(29 citation statements)

References 6 publications

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“…In practical applications, the performances and cost of the SRM drive system are distinctly influenced by the power converter [4]. Many efforts were made to improve the performances of SRM drive system considering the power converter, such as position sensorless control [5] [6], torque ripple reduction [7] [8], high speed applications [9] [10], and fault diagnosis [11] [12].…”

Section: Introductionmentioning

confidence: 99%

Control Performance Analysis and Improvement of a Modular Power Converter for Three-Phase SRM With Y-Connected Windings and Neutral Line

Song

Xia

Zhang

et al. 2016

IEEE Trans. Ind. Electron.

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a modular power converter for 3-phase switched reluctance machine (SRM) are analyzed and improved. The converter is implemented by a dual and a six-pack IGBT module, and the phase windings of the SRM are Y-connected and bipolar excited. The performances of the existing control method for this converter are evaluated by simulation and compared with those for the traditional asymmetric halfbridge converter, and the drawbacks, such as big torque ripple and small average torque, are presented. With the new operating modes of phase branch, namely magnetization, freewheeling and demagnetization, improved basic control methods are proposed, which can effectively enhance the performances, flexibility and applicability of the converter. Furthermore, the direct instantaneous torque control, which can reduce the torque ripple, is realized with the converter as well. Several simulations and experiments under different working conditions are carried out to verify the performances of the improved control methods.

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Section: Introductionmentioning

confidence: 99%

Control Performance Analysis and Improvement of a Modular Power Converter for Three-Phase SRM With Y-Connected Windings and Neutral Line

Song

Xia

Zhang

et al. 2016

IEEE Trans. Ind. Electron.

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“…In the former, increasing the number of phase [6 , 7] , optimizing stator or rotor pole arc [8][9][10] [19][20][21][22][23], which simplifies the system structure and improves dynamic response of output torque according to the reports. Moreover, many scholars have also proposed such as fuzzy control [24,25] , neural network [26] and other intelligent control algorithm.…”

Section: Introductionmentioning

confidence: 99%

Torque ripple minimization of a novel modular stator switched reluctance motor based on direct instantaneous torque control

Ding

2016

2016 Eleventh International Conference on Ecological Vehicles and Renewable Energies (EVER)

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The paper presents a study on the torque performance of a novel switched reluctance motor (SRM) with E-shaped modular stator and segment rotor based on direct instantaneous torque control (DITC). The structure of the machine and the main notion of DITC are first introduced. The corresponding control rules in each inductance region are then described according to the characteristics of asymmetric power converter. In order to test the method, a drive system is simulated and an experimental platform is developed. A good agreement between some simulations and experiments of total torque, phase torque and phase current shows that DITC is practicable for mitigating the torque ripple of the novel SRM.

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“…The disadvantages of this converter is that control of boost capacity is an important problem. To control it the phase voltage should be increased when voltage increase is not necessary until boost capacity can be discharged [11]. In proposed converters, for quickly building up the excitation current, V dc + V B voltage excites the phase to prevent torque reduction.…”

Section: Introductionmentioning

confidence: 99%

A designed converter for minimizing SRM torque ripple with controlled boost capacitor automatically

Samani¹,

Abdolhamidi²,

Rashidi³

et al. 2016

Turk J Elec Eng & Comp Sci

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Direct instantaneous torque control (DITC) is one way of controlling torque in switched reluctance motors.Despite the presence of DITC control, torque ripple at nominal or higher speeds is considerable due to the back emf increasing. To overcome this drawback, many converters have been proposed. In most convertors proposed for fast excitation in DITC, controlling of boost capacity is an important problem. This paper presents a DITC for a switched reluctance motor using a proposed converter to reduce the torque ripple with controlled boost capacitor automatically.The proposed converter reduces the torque ripple at rated or higher speeds and no controller requires controlling the boost capacitor. The proposed converter is compared with an asymmetric one via simulation results using MATLAB and experimental results.

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Direct instantaneous torque control of switched reluctance machines using 4-level converters

Cited by 61 publications

References 6 publications

Control Performance Analysis and Improvement of a Modular Power Converter for Three-Phase SRM With Y-Connected Windings and Neutral Line

Control Performance Analysis and Improvement of a Modular Power Converter for Three-Phase SRM With Y-Connected Windings and Neutral Line

Torque ripple minimization of a novel modular stator switched reluctance motor based on direct instantaneous torque control

A designed converter for minimizing SRM torque ripple with controlled boost capacitor automatically

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