A Review of the Power Converter Interfaces for Switched Reluctance Machines

Pires, V. Fernão; Pires, A. J.; Cordeiro, Armando; Foito, Daniel

doi:10.3390/en13133490

Cited by 25 publications

(9 citation statements)

References 89 publications

(124 reference statements)

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“…Miller converter or shared-switch topology was first introduced in [11]. The idea is to share the same switch and diode set between more than one phase and there are many configurations according to the number of phase (even or odd) as shown in [12,13]. The change only affects the upper switch, leaving the lower switches the same as AHB configuration and thus independent phase control is still possible.…”

Section: Miller Converter For the Proposed 8/6 Srmmentioning

confidence: 99%

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Design Considerations and Selection of Cost-Effective Switched Reluctance Drive for Radiator Cooling Fans

et al. 2021

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Switched reluctance motors (SRMs) are simple in structure, easy to manufacture, magnet-less, brushless, and highly robust compared to other AC motors which makes them a good option for applications that operate in harsh environment. However, the motor has non-linear magnetic characteristics, and it comes with various pole-phase combinations and circuit topologies that causes many difficulties in deciding on which type to choose. In this paper, the viability of SRM as a low-cost, rugged machine for vehicle radiator cooling fan is considered. First, necessary design considerations are presented, then three commonly use types of SRM are analyzed: A 3-phase 6/4, 3-phase 12/8, and a 4-phase 8/6 to find their static and dynamic characteristics so the most suitable type can be selected. Simulation results show that the 8/6 SRM produces the highest efficiency with less phase current which reduces the converter burden. However, with asymmetric half bridge converter, eight power switches are required for 8/6 SRM and thus put a burden on the overall drive cost. As a solution, the Miller converter with only six switches for four phase SRM. To verify the proposed idea, the 8/6 SRM was manufactured and tested. The results show that Miller converter can be used for the proposed SRM with slightly reduced efficiency at 80.4%.

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Section: Miller Converter For the Proposed 8/6 Srmmentioning

confidence: 99%

“…To solve this problem, various converter topologies have been suggested over the years. Literature in [11,12] summed up some of them. In this paper, the Miller converter is used to reduce the number of switches in the 4-phase 8/6 SRM to that of a 3-phase SRM, which is from 8 to 6.…”

Section: Introductionmentioning

confidence: 99%

Design Considerations and Selection of Cost-Effective Switched Reluctance Drive for Radiator Cooling Fans

et al. 2021

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“…One fundamental aspect of the application of an SRM is the electronic power converter that must be used to operate the motor; several topologies can be adopted. The classic solution is the asymmetrical half-bridge topology [13][14][15]. However, many other two-level topologies have been presented and proposed.…”

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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“…Furthermore, SRMs use the concentrated type of stator winding. This simple structure offers many advantages, including a low manufacturing cost, rapid acceleration, robust operation under high-speed and high-temperature conditions, and fault-tolerant capability [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Performance Investigation of Switched Reluctance Motor Driven by Quasi-Z-Source Integrated Multiport Converter with Different Switching Algorithms

et al. 2021

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Switched reluctance machines (SRMs) have received increasing attention for their many potential uses, such as for wind power and electric vehicle (EV) drive systems. The Quasi-Z-source Integrated Multiport Converter (QZIMPC) was recently introduced to improve the reliability of the SRM driver through small capacitance values. It is not possible, however, to simultaneously energize and deenergize two SRM phases in QZIMPC. This phenomenon can significantly increase the commutation period which, in turn, degrades the performance of SRM; in addition, this causes high-voltage ripples on the converter’s capacitors. Two switching algorithms are introduced and applied in this paper, and their performance with SRM is investigated in terms of torque ripple and peak phase current. The algorithms are based on prioritizing the control command in the on-going and off-going phases to fulfill the required load torque, as well as to accelerate the commutation process where possible. This is achieved without the interference of high-level controllers, which include speed controllers and/or torque ripple minimization. Through the simulation results, a comparison between the two switching algorithms is presented to determine their potential to improve the SRM drive system’s performance.

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A Review of the Power Converter Interfaces for Switched Reluctance Machines

Cited by 25 publications

References 89 publications

Design Considerations and Selection of Cost-Effective Switched Reluctance Drive for Radiator Cooling Fans

Design Considerations and Selection of Cost-Effective Switched Reluctance Drive for Radiator Cooling Fans

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

Performance Investigation of Switched Reluctance Motor Driven by Quasi-Z-Source Integrated Multiport Converter with Different Switching Algorithms

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