An Integrated Multiport Power Converter With Small Capacitance Requirement for Switched Reluctance Motor Drive

Cai, Wen; Fan, Yi

doi:10.1109/tpel.2015.2442924

Cited by 84 publications

(21 citation statements)

References 28 publications

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“…However, the selected capacitor should satisfy the needs of the most adverse modulation for a better comparison. The theoretical minimum capacitance value can be quantified by [17]:…”

Section: B Election Of the Capacitormentioning

confidence: 99%

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A Methodology to Determine the Effect of a Novel Modulation in the Reliability of an Automotive DC-Link Capacitor

et al. 2020

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Switched Reluctance Machines (SRM) are considered promising rare-earth free candidates for the next generation electrified vehicles. One of the main drawback of this technology is the need of a large DC-link capacitor to balance the energy transferred back and forth between the DC source and the SRM. There are interesting novel modulations to reduce the current of the DC bus, focused on the capacitor size and cost reduction but leaving aside the thermal analysis and lifetime improvements. Carrying out the required dynamic multi-physics simulations for that purpose becomes highly time consuming and complex, especially when standardized or real driving conditions are needed to be taken into account. This paper proposes a simulation methodology, simple to implement and with a relatively low computational cost, to estimate the lifetime of an automotive DC-link capacitor, with the current load it delivers as the starting point. The presented methodology has also been used to validate a novel SRM modulation technique and to compare it, in terms of reliability, with the conventional torque sharing function.

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“…However, the selected capacitor should satisfy the needs of the most adverse modulation for a better comparison. The theoretical minimum capacitance value can be quantified by [17]:…”

Section: B Election Of the Capacitormentioning

confidence: 99%

“…Indeed, nowadays most SRM-related research focuses on new converter topologies or control improvements. One key method to improve the DC-link performance is to employ a more complex converter topology [17]- [19]. However, these topologies require more devices, reduce the fault tolerance and increase the total volume.…”

Section: Introductionmentioning

confidence: 99%

A Methodology to Determine the Effect of a Novel Modulation in the Reliability of an Automotive DC-Link Capacitor

et al. 2020

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“…3.2. Converter topology and torque hysteresis controller Much work has been done to reduce the number of semiconductor switches and introduce new drive topologies for the SRM drive system [30,31]. But all these new topologies lack extensive usage.…”

Section: One-step Prediction Modulementioning

confidence: 99%

Flux linkage optimization for direct torque control of switched reluctance motor based on model predictive control

Shang

Huang

et al. 2019

IEEJ Transactions Elec Engng

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In this paper, to solve the problem of large torque ripple in a switched reluctance motor (SRM), a new control strategy based on model predictive flux control is proposed in the direct torque control (DTC) algorithm. First, the flux linkage value in the next period is calculated from the discrete time model of the SRM. Second, to reduce the computation burden and increase the dynamic response, a torque hysteresis controller is embedded in the system to select three candidate voltage vectors for the cost function. Finally, based on flux linkage minimization, the best voltage vector is selected and applied to the system. The proposed direct torque and predictive flux control (DTPFC) method perfectly suits the nonlinear magnetic characteristics of SRM, and shows better steady‐state and dynamic‐state performances compared to DTC. Furthermore, since DTPFC has only one variable in the cost function, the huge task of obtaining the best weighting factor is eliminated. Simulation and experiments are carried out on a three‐phase 12/8 SRM with the proposed control algorithm and DTC. The results demonstrate the validity of the new control approach. © 2019 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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“…Furthermore, the average torque and efficiency are lower than those of the traditional asymmetric half-bridge converter. In [18], an integrated multiport power converter was developed for 3-phase SRM to reduce capacitance requirement, and only two IGBT modules are needed. However, compared with the traditional asymmetric half-bridge converter, this converter is more difficult to control due to multiple control objectives and coupled controlled variables.…”

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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An Integrated Multiport Power Converter With Small Capacitance Requirement for Switched Reluctance Motor Drive

Cited by 84 publications

References 28 publications

A Methodology to Determine the Effect of a Novel Modulation in the Reliability of an Automotive DC-Link Capacitor

A Methodology to Determine the Effect of a Novel Modulation in the Reliability of an Automotive DC-Link Capacitor

Flux linkage optimization for direct torque control of switched reluctance motor based on model predictive control

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

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