Scholarlink

<p>Modular machines possess high redundancy, which enables continuous operation even when one module fails. Existing research has predominantly addressed faults in inverter switches and machine windings, while current sensor failures despite their higher occurrence rate in modular systems compared to conventional three-phase drives have not been sufficiently studied. This paper proposes a fault-tolerant control scheme based on dynamic weight allocation for current sensor failures in modular multiple three-phase machine drives. The mathematical model of the modular machine is derived for both normal and post-fault operating conditions, with corresponding dynamic weight adjustment rules designed accordingly. The influence of magnetic coupling on fault-tolerant performance is analyzed and incorporated into the control strategy. Furthermore, a switchable resonant compensator is developed to suppress resulting current harmonics. Experimental results validate the proposed strategy, demonstrating effective fault-tolerant performance across various operating conditions without requiring hardware modifications.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

A current sensor post-fault strategy for modular multiple three-phase machine drive

  • 期刊论文

  • 发表日期：

    2026年4月18日

查看全文
  • Zihan Wei,
  • Weizhen Huang,
  • Bo Wang,
  • Shangjian Dai,
  • Rongxin Wang,
  • Zheng Wang,
  • Ming Cheng

摘要

Modular machines possess high redundancy, which enables continuous operation even when one module fails. Existing research has predominantly addressed faults in inverter switches and machine windings, while current sensor failures despite their higher occurrence rate in modular systems compared to conventional three-phase drives have not been sufficiently studied. This paper proposes a fault-tolerant control scheme based on dynamic weight allocation for current sensor failures in modular multiple three-phase machine drives. The mathematical model of the modular machine is derived for both normal and post-fault operating conditions, with corresponding dynamic weight adjustment rules designed accordingly. The influence of magnetic coupling on fault-tolerant performance is analyzed and incorporated into the control strategy. Furthermore, a switchable resonant compensator is developed to suppress resulting current harmonics. Experimental results validate the proposed strategy, demonstrating effective fault-tolerant performance across various operating conditions without requiring hardware modifications.