Scholarlink

<p>This study discusses the compensation of time delays in ultra-high-speed applications. Sensorless controls are used to estimate the rotor speed and angle. In model-based sensorless control, the voltage and current signals are used for angle estimation as an input of the observer. A time delay occurs when calculating these signals. Especially in the high-speed operating range, these time delays degrade sensorless control performance. This study proposes a method to compensate for these time delays, which improves accurate angle estimation. The proposed time delay implementation method has been validated through simulations and experiments using a 15&#xa0;kW, 150 kr/min surface mounted permanent magnet synchronous motor for high-speed air compressors of fuel cell systems, where the ratio of switching frequency to fundamental frequency was 8:1.</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

Sensorless control with time delay compensation for ultra-high-speed air compressor motors in fuel cell systems

  • 期刊论文

  • 发表日期：

    2026年1月13日

查看全文
  • Sung-Ho Kang,
  • Hyun-Jun Lee,
  • Tae-Gyeom Woo,
  • Chang-Seok You,
  • Sang-Hak Lim,
  • Young-Doo Yoon

摘要

This study discusses the compensation of time delays in ultra-high-speed applications. Sensorless controls are used to estimate the rotor speed and angle. In model-based sensorless control, the voltage and current signals are used for angle estimation as an input of the observer. A time delay occurs when calculating these signals. Especially in the high-speed operating range, these time delays degrade sensorless control performance. This study proposes a method to compensate for these time delays, which improves accurate angle estimation. The proposed time delay implementation method has been validated through simulations and experiments using a 15 kW, 150 kr/min surface mounted permanent magnet synchronous motor for high-speed air compressors of fuel cell systems, where the ratio of switching frequency to fundamental frequency was 8:1.