Phase Current Reconstruction Method With an Improved Direct Torque Control of SRM Drive for Electric Transportation Applications

Ronanki, Deepak; Pittam, Krishna Reddy; Dekka, Apparao; Perumal, Parthiban; Beig, Abdul R.

doi:10.1109/tia.2022.3196329

Cited by 11 publications

(2 citation statements)

References 40 publications

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“…By integrating (18) over the interval from 𝑥 𝑜𝑛 to 𝑥 1𝑢 , it can be expressed as (19). The flux linkage and phase force are functions of the rotor position and phase current.…”

Section: Adaptive Phase Turn-onmentioning

confidence: 99%

“…To have better performance at low speeds, a predictive strategy has been introduced in [17], which is based on a finite-control-set model. A solution for reconstructing phase currents and enhancing the direct torque control strategy in a four-phase SRM drive has been presented in [18]. The proposed method utilizes a 16-sector partition approach and introduces a novel voltage vector selection process that detects zero-current regions in each phase.…”

Section: Introductionmentioning

confidence: 99%

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Reducing Force Ripples and Enhancing Reliability in LSRMs Through Modern Structure and Advanced Control Systems

Masoudi,

Ben-Brahim,

Gastli

et al. 2024

IEEE Access

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Linear switched reluctance motors (LSRMs) are highly popular due to their simple and robust structure, affordable pricing, and ability to operate at high efficiency. However, a major drawback of these motors is the high ripple force. In this paper, a novel structure for a linear motor with an exceptionally lightweight rotor and a stator with separate poles is presented, making it suitable for use in electric train systems. The proposed system not only significantly reduces force fluctuations but also enables the distribution of force along the length of the moving vehicle, ensuring smooth motion. Moreover, the reliability of the system is enhanced, as the LSRM can continue its motion even in the presence of a fault in one of the phases. In applications with high speeds, the use of a fast controller seems essential, but conventional fast regulators often lack sufficient precision. To address this issue, a new control system is introduced, utilizing a new 12-vector voltage switching table and a current controller. Unlike conventional control methods, the phases firing angle in the proposed system is not fixed. As a result, acceptable performance at different speeds is achieved through an adaptive real-time turn-on position control.INDEX TERMS Multi-stator linear switched reluctance motor, force distribution, Reliability, adaptive phase turn-on, switching table, current control, 2D finite element analysis.

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Section: Adaptive Phase Turn-onmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Reducing Force Ripples and Enhancing Reliability in LSRMs Through Modern Structure and Advanced Control Systems

Masoudi,

Ben-Brahim,

Gastli

et al. 2024

IEEE Access

View full text Add to dashboard Cite

show abstract

Robust predictive torque control of switched reluctance motor based on linear extended state observer

Chen,

Li,

et al. 2024

Electr Eng

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Genetic algorithm‐based approach for torque control and increased efficiency across an optimised speed range in switched reluctance drives

MacRae,

Abdel‐Aziz,

Ahmed

et al. 2024

IET Electric Power Appl

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This paper presents a novel genetic algorithm (GA) design for current profiling in switched reluctance machines that eliminates torque ripple (TR) while inherently guaranteeing minimal RMS currents across the machines speed range. Minimising RMS current provides an increase to machine efficiency and the elimination of TR is required for potential SRM applications such as traction vehicles. This paper proposes a novel method for intentional greater‐than‐two‐phase overlap in the algorithm design. This allows any SRM configuration capable of three or more phase conduction to utilise its full speed range with zero torque ripple, in the case where it is limited using two‐phase torque sharing. An optimal set of current profiles is created using the algorithm across the full speed range of an exemplary 8/6 SRM and these are analysed. A current profiling‐based control scheme using these results is then proposed and simulated for the 8/6 SRM. This is then compared to classical and recently published SRM control methods to highlight the merits of the overall GA design and its resultant control scheme.

show abstract

Phase Current Reconstruction Method With an Improved Direct Torque Control of SRM Drive for Electric Transportation Applications

Cited by 11 publications

References 40 publications

Reducing Force Ripples and Enhancing Reliability in LSRMs Through Modern Structure and Advanced Control Systems

Reducing Force Ripples and Enhancing Reliability in LSRMs Through Modern Structure and Advanced Control Systems

Robust predictive torque control of switched reluctance motor based on linear extended state observer

Genetic algorithm‐based approach for torque control and increased efficiency across an optimised speed range in switched reluctance drives

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