Evaluation of DC-Link Capacitor RMS Current in Switched Reluctance Motor Drive

Ahmad, Syed Shahjahan; Narayanan, G.

doi:10.1109/tia.2020.3048637

Cited by 19 publications

(3 citation statements)

References 39 publications

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“…Inevitably larger current ripples are generated in the dc-link capacitors. Naturally, the RMS current on the capacitors will signifcantly increase and have an efect on its thermal management, size design, and lifetime [2][3][4]. Terefore, it is inevitable to design a reliable and economical capacitor in a multiphase drive system.…”

Section: Introductionmentioning

confidence: 99%

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Calculation of RMS Current Load on DC-Link Capacitors for Multiphase Machine Drives under Carrier-Phase Shift Control

Zhang

et al. 2023

Journal of Control Science and Engineering

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The reliability and economy of dc-link capacitors are important concerns in multiphase drive systems. Due to the parallel connection of several converters, the dc-link capacitors are subjected to a higher RMS current, and the root mean square (RMS) current of dc-link capacitors is an important reference standard to determine its lifetime, cost, and volume. In this paper, the RMS current of dc-link capacitor is calculated by using the dual Fourier integral method and the effect of carrier interleave is studied. Meanwhile, the modulation ratio, harmonic sidebands, and switching frequency are also considered. In order to optimize the reliability and economy of the multiphase drive system, a Cotes method combined with carrier-phase shifting technology (CPST) for calculating RMS current of the dc-link capacitor is proposed. The proposed method can provide optimization guidance for the design of dc-link capacitors. Finally, the analytical and experiment results are compared with the existing methods, and the experimental results verify the effectiveness of the proposed method.

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Section: Introductionmentioning

confidence: 99%

“…where R k , S k , and T k can be represented by (4). y � ω f2 t, x � ω sw2 t, and f � 1/2π(gω sw2 + hω f2 ), with g, h ∈ N.…”

mentioning

confidence: 99%

Calculation of RMS Current Load on DC-Link Capacitors for Multiphase Machine Drives under Carrier-Phase Shift Control

Zhang

et al. 2023

Journal of Control Science and Engineering

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“…There is an increasing popularity of the adoption of the switched reluctance motor (SRM) in areas such as industrial and home applications in recent years [1][2][3][4][5][6][7][8]. SRM is also considered as a strong competitor in electric vehicles due to its simple structure, high efficiency and low cost [9,10].…”

Section: Introductionmentioning

confidence: 99%

Dynamic measurement of magnetic characteristics of switched reluctance motor

Fan

Lee²

2023

Electrical Engineering & Electromechanics

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Introduction. Switched reluctance motor (SRM) is a type of electric motor featuring nonlinear magnetic characteristics. The flux linkage or inductance profile of SRM is usually required for the purpose of high control performance, and can be normally obtained through conventional static test by using DC or AC method when the rotor is locked. Problem. However, it is not practical to use the conventional method of measurement when the specific apparatus for locking the rotor is unavailable. Besides, due to the magnetic nonlinearity of SRM, the saturation effect makes it difficult to obtain the saturated magnetic characteristics, and the conventional static AC test fails to address this problem. Novelty. In this paper, a dynamic measurement method of the magnetization curves of SRM is proposed which allows the measurement take place while the motor is running with load. Methodology. Based on the conventional static AC test, the proposed measurement handles the saturation problem successfully by introducing a DC offset in the high frequency AC voltage. Phase inductance with different rotor positions and currents can be obtained by analyzing simple equivalent circuit. Practical value. Simulation is conducted in MATLAB/Simulink environment and the results have verified that the proposed dynamic measurement can effectively obtain the magnetic characteristics of SRM.

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Enhancing sensorless control of SRM through instantaneous direct torque control with MGAO-CANN technique

Ranjitkumar,

Raju

2024

Electr Eng

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Evaluation of DC-Link Capacitor RMS Current in Switched Reluctance Motor Drive

Cited by 19 publications

References 39 publications

Calculation of RMS Current Load on DC-Link Capacitors for Multiphase Machine Drives under Carrier-Phase Shift Control

Calculation of RMS Current Load on DC-Link Capacitors for Multiphase Machine Drives under Carrier-Phase Shift Control

Dynamic measurement of magnetic characteristics of switched reluctance motor

Enhancing sensorless control of SRM through instantaneous direct torque control with MGAO-CANN technique

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