A novel winding-reconfigurable fault-tolerant power converter for switched reluctance motor systems in electric vehicles

YU Fengyuan; CHEN Hao; ZHANG Jiaming; WANG Guoping

doi:10.19783/j.cnki.pspc.265004

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A novel winding-reconfigurable fault-tolerant power converter for switched reluctance motor systems in electric vehicles

更新时间：2026-07-19

- A novel winding-reconfigurable fault-tolerant power converter for switched reluctance motor systems in electric vehicles
- Power System Protection and Control Vol. 54, Issue 14, (2026)
- 作者机构：
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- DOI：10.19783/j.cnki.pspc.265004
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- Published：2026
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YU Fengyuan, CHEN Hao, ZHANG Jiaming, et al. A novel winding-reconfigurable fault-tolerant power converter for switched reluctance motor systems in electric vehicles[J]. Power System Protection and Control, 2026, 54(14).
DOI：

YU Fengyuan, CHEN Hao, ZHANG Jiaming, et al. A novel winding-reconfigurable fault-tolerant power converter for switched reluctance motor systems in electric vehicles[J]. Power System Protection and Control, 2026, 54(14). DOI： 10.19783/j.cnki.pspc.265004.

摘要

针对传统开关磁阻电机系统在调速范围与可靠性上难以兼顾的问题，提出了一种新型绕组重构型容错功率变换器。首先，阐述了新型绕组重构型容错功率变换器拓扑，每相采用5个功率开关管和1个功率二极管。然后，详细分析了所提变换器的工作模式、运行状态与故障特性。相较于只具有固定绕组连接方式的传统不对称半桥变换器，该拓扑不仅能够实现电机多种绕组连接方式在线重构，还能够实现功率变换器器件故障情况下的容错运行。最后，搭建了基于新型绕组重构型容错变换器的驱动系统仿真模型和实验平台，仿真和实验结果验证了所提变换器在绕组在线重构与容错运行方面的有效性。

Abstract

To address the challenge of achieving both a wide speed regulation range and high reliability in conventional switched reluctance motor drive systems

a novel winding-reconfigurable fault-tolerant power converter is proposed. First

the topology of the proposed converter is presented

which utilizes five power switches and one power diode per phase. Subsequently

the operating modes

operating states

and fault characteristics of the proposed converter are analyzed in detail. Compared with the conventional asymmetric half-bridge converter

which only supports a fixed winding configuration

the proposed topology not only enables online reconfiguration of multiple motor winding connections but also provides fault-tolerant operation in the event of power converter device failures. Finally

a simulation model and an experimental platform of the drive system based on the proposed converter are constructed. Both simulation and experimental results validate the effectiveness of the proposed converter in achieving online winding reconfiguration and fault-tolerant operation.

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references

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