DITC-direct instantaneous torque control of switched reluctance drives

Inderka, R.B.; Doncker, R.W.A.A. De

doi:10.1109/tia.2003.814578

Cited by 287 publications

(96 citation statements)

References 8 publications

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“…The direct instantaneous torque control of SRMs is another method of torque ripple minimization. These methods however suffer from being dependent heavily on accurate torque estimation [23][24]. In this paper, the torque sharing among the phases is implemented using the dq rotating reference frame based method.…”

Section: Flux Weakening Control Of Switched Reluctancementioning

confidence: 99%

Flux-Weakening Control of Switched Reluctance Machines in Rotating Reference Frame

Husain

Elrayyah

Sözer

et al. 2016

IEEE Trans. on Ind. Applicat.

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A flux weakening control for switched reluctance motors (SRM) in the rotating reference frame is proposed in this paper. This rotating reference frame control of SRM mimics the control of synchronous machines (SM). The method uses the periodic nature of the quasi-sinusoidal static torque characteristics to establish the rotating reference frame. A novel negativity removal and simplified non-linearity handling block is introduced to ensure a smooth torque sharing among different phases and adjust for the SRMs unique operating principle. In the dq control method a d-axis current is commanded for weakening the flux. An adaptive control method that uses the commanded and actual currents determines the required amount of flux weakening. Through the unique features of dq controls, the proposed method offers smooth torque at low speed and supports a wide speed operation. The proposed control method is verified experimentally. I.0093-9994 (c)

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Section: Flux Weakening Control Of Switched Reluctancementioning

confidence: 99%

Flux-Weakening Control of Switched Reluctance Machines in Rotating Reference Frame

Husain

Elrayyah

Sözer

et al. 2016

IEEE Trans. on Ind. Applicat.

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“…Under direct torque control (DTC), torque is controlled directly and there is no current control loop [16]. DTC is characterized by estimation of instantaneous torque solely based on terminal quantities (voltage and current).…”

Section: ) Dtc and CC Torque Controlmentioning

confidence: 99%

Guidance in Selecting Advanced Control Techniques for Switched Reluctance Machine Drives in Emerging Applications

Sözer

Husain

Torrey

2015

IEEE Trans. on Ind. Applicat.

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This paper presents advancements in the control techniques of switched reluctance machines (SRMs) for traction and automotive applications. The high performance of the SRM drive system is embodied in the smooth torque output and high efficiency control methods in the motoring and generating modes of operation. Wide speed operating ranges for both motoring and generating operations are considered. An SRM designed and built for an off-road traction application is used as an application example. Simulation results for the proposed techniques using an SRM system designed for off-road traction application are presented.

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“…Direct in stantaneous torque control (DITC) is one among the available direct torque control techniques. The prominent features of DITC are its simplicity, requirement of low-precision position sensor, instantaneous torque estimation solely from terminal quantities and robustness against variations in input quantities such as torque, voltage and speed [5).…”

Section: Introductionmentioning

confidence: 99%

Modified direct instantaneous torque control of switched reluctance motor with high torque per ampere and reduced source current ripple

Suryadevara

Fernandes

2014

2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA)

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Ahstract-This paper presents a modified version of direct instantaneous torque control (DITC) for minimizing torque ripple in switched reluctance motor (SRM). In DITC, it is observed that the phase current profiles and torque ripple characteristics depend on the turn-on instant. For current profiles with low RMS value, an overshoot in torque is observed during the commutation period, which increases the torque ripple. This overshoot in torque can be limited by delaying the turn-on instant. Consequently, the resultant current profiles have higher source current ripple, higher RMS value and thereby, lower torque per ampere ratio. In order to address these limitations, a modified version of DITC is proposed for a three-phase SRM, which simultaneously improves the torque per ampere ratio and prevents torque overshoot. In addition, the proposed strategy also aims at improving the source current ripple, by reducing its peak values during the commutation period. Finally, the improved performance with modified DITC is verified by simulation studies.Index Terms-Direct instantaneous torque control, source cur rent ripple, switched reluctance motor, torque ripple minimiza tion

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DITC-direct instantaneous torque control of switched reluctance drives

Cited by 287 publications

References 8 publications

Flux-Weakening Control of Switched Reluctance Machines in Rotating Reference Frame

Flux-Weakening Control of Switched Reluctance Machines in Rotating Reference Frame

Guidance in Selecting Advanced Control Techniques for Switched Reluctance Machine Drives in Emerging Applications

Modified direct instantaneous torque control of switched reluctance motor with high torque per ampere and reduced source current ripple

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