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

Abstract

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.

Decoupling Characteristics and Torque Analytical Model of Sharing-Suspension-Windings Bearingless Switched Reluctance Motor Considering Flux-Linkage Saturation

“…Scholars have laid a g foundation for more than 30 years of research on bearingless switched relucta machines. At present, all kinds of motor structures have achieved preliminary suspen operation in a laboratory environment [6][7][8][9][10][11][12][13]. In the research process of m optimization design and control strategy, the torque model based on flux-link saturation is a very important research basis and premise.…”

“…Scholars have laid a good foundation for more than 30 years of research on bearingless switched reluctance machines. At present, all kinds of motor structures have achieved preliminary suspension operation in a laboratory environment [6][7][8][9][10][11][12][13].…”

Fault-Tolerant Multilevel Converter to Feed a Switched Reluctance Machine

“…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.…”

A Comprehensive Performance Comparison between Segmental and Conventional Switched Reluctance Machines with Boost and Standard Converters

“…A boost converter for SRM with a faster current build-up and rapid demagnetization has been proposed in [26]. C-dump converters with boosting voltage capability have been reviewed in [27]. A converter with a passive boost function for SRM has been presented in [28] for torque ripple reduction.…”