A Drive Topology for High-Speed SRM With Bidirectional Energy Flow and Fast Demagnetization Voltage

Tang, Ying; He, Yingjie; Xie, Haotian; Rodríguez, José; Kennel, Ralph

doi:10.1109/tie.2020.3022497

Cited by 11 publications

(4 citation statements)

References 24 publications

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“…[6][7][8][9] Hence, many research works on developing rare earth free machines for upcoming electric traction drives. [10][11][12] The general structure of EV drivetrain is shown in Figure 1.…”

Section: Introductionmentioning

confidence: 99%

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A quick demagnetization approach for low torque ripple in three‐phase switched reluctance motor drive system for electric vehicle applications

Damarla,

Mahendran,

Ganji

et al. 2023

Circuit Theory & Apps

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SummaryElectric vehicles (EVs) have gained a forward approach for achieving the low carbon economy and green transportation. Switched reluctance (SR) motor‐based propulsion mechanisms have been popularly used for EVs due to the wide speed range capability. The conventional phase current regulation technique does not give the satisfactory reduction of torque ripple in SR motor drive, particularly for automotive applications. To overcome the issue, a frontend boost converter (FEBC) is proposed to realize the quick excitation and demagnetization. Initially, the problems associated with the conventional asymmetric half bridge converter are investigated at various levels of phase current. The various operating modes of proposed drive system with FEBC are explained in detail. The proposed FEBC has the significant benefit of being able to provide variable boosting voltages based on the dynamic behavior of the SR motor. The phase voltages are increased during the fast magnetization and demagnetization modes due to the inclusion of FEBC, and hence, quick magnetization and demagnetization have been achieved. The proposed FEBC drive system has been simulated through the Matlab Simulink toolbox. The experimental results are also carried out in order to validate the simulation results.

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Section: Introductionmentioning

confidence: 99%

“…In EV propulsion systems, the permanent magnet (PM) machines are advantageous because of its high torque/power density and high efficiency 6–9 . Hence, many research works on developing rare earth free machines for upcoming electric traction drives 10–12 . The general structure of EV drivetrain is shown in Figure 1.…”

Section: Introductionmentioning

confidence: 99%

A quick demagnetization approach for low torque ripple in three‐phase switched reluctance motor drive system for electric vehicle applications

Damarla,

Mahendran,

Ganji

et al. 2023

Circuit Theory & Apps

View full text Add to dashboard Cite

show abstract

“…Through the use of these, topologies two voltage levels will be generated, allowing for the magnetization or demagnetization of the machine windings. However, other solutions have been used and proposed, such as the multilevel topologies and other solutions based on the impedance source [29][30][31][32][33][34]. Several aspects should be considered for the choice of the power converter topology, such as the speed range, torque ripple, and performance, among others.…”

Section: Introductionmentioning

confidence: 99%

Fault-Tolerant Multilevel Converter to Feed a Switched Reluctance Machine

et al. 2022

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The switched reluctance machine (SRM) is one of the most interesting machines, being adopted for many applications. However, this machine requires a power electronic converter that usually is the most fragile element of the system. Thus, in order to ensure high reliability for this system, it is fundamental to design a power electronic converter with fault-tolerant capability. In this context, a new solution is proposed to give this capability to the system. This converter was designed with the purpose to ensure fault-tolerant capability to two types of switch faults, namely open- and short-circuit. Moreover, apart from this feature, the proposed topology is characterized by a multilevel operation that allows improvement of the performance of the SRM, taking into consideration a wide speed range. Although the proposed solution is presented for an 8/6 SRM, it can be used for other configurations. The operation of the proposed topology will be described for the two modes, fault-tolerant and normal operation. Another aspect that is addressed in this paper is the proposal of fault detection and diagnosis method for this fault-tolerant inverter. It was specifically developed for a multilevel SRM drive. The theoretical assumptions will be verified through two different types of tests, firstly by simulation and secondly by experiments with a laboratory prototype.

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“…Topologies based on these classical forms, but with reduced numbers of switches, were also proposed [43][44][45][46]. However, they become severely affected regarding their fault tolerance capability.…”

Section: Introductionmentioning

confidence: 99%

PV Generator-Fed Water Pumping System Based on a SRM with a Multilevel Fault-Tolerant Converter

et al. 2022

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This paper presents a pumping system supplied by a PV generator that is based on a switched reluctance machine (SRM). Water pumping systems are fundamental in many applications. Most of them can be used only during the day; therefore, they are highly recommended for use with PV generators. For the interface between the PV panels and the motor, a new multilevel converter is proposed. This converter is designed in order to ensure fault-tolerant capability for open switch faults. The converter is based on two three-level inverters, with some extra switches. Moreover, to reduce the number of switches, the converter is designed to provide inverse currents in the motor windings. Due to the characteristics of this motor, the inverse currents do not change the torque direction. In this way, it was possible to obtain an SRM drive with fault-tolerant capability for transistor faults; it is also a low-cost solution, due to the reduced number of switches and drives. These characteristics of fault-tolerant capability and low cost are important in applications such as water pumping systems supplied by PV generators. The proposed system was verified by several tests that were carried out by a simulation program. The experimental results, obtained from a laboratory prototype, are also presented, with the purpose of validating the simulation tests.

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A Drive Topology for High-Speed SRM With Bidirectional Energy Flow and Fast Demagnetization Voltage

Cited by 11 publications

References 24 publications

A quick demagnetization approach for low torque ripple in three‐phase switched reluctance motor drive system for electric vehicle applications

A quick demagnetization approach for low torque ripple in three‐phase switched reluctance motor drive system for electric vehicle applications

Fault-Tolerant Multilevel Converter to Feed a Switched Reluctance Machine

PV Generator-Fed Water Pumping System Based on a SRM with a Multilevel Fault-Tolerant Converter

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