Abstract
To increase reliabilities of five-phase (5Ph) preferment magnet (PM) motor drives, position sensorless control was investigated considering motor faulty conditions. A decoupled model under single phase open fault was firstly introduced. And based on this model, a high frequency voltage injection method was utilized to estimate the rotor position at low speeds, where the essential spatial saliency can be explained by main flux saturation. However as discovered that sensorless control of studied motor can be failed attributed to nonlinearities of 5Ph drive, time delay of HF current by analog circuits, weak spatial saliency, and etc.. To tackle this, we proposed a novel rotor position demodulation technique as well as an extended state observer (ESO) based method for position estimation, of which the former enhanced the performance of position error signal detection and the latter improved position observer dynamics. The faulty motor position sensorless control is tested on a 5Ph drive platform, and effectiveness of proposed method was verified by experimental results.
| Translated title of the contribution | ESO-based Low-speeds Position-sensorless-control of a Five-phase PM Motor Under Single Phase Open Circuit |
|---|---|
| Original language | Chinese (Traditional) |
| Pages (from-to) | 2448-2457 |
| Number of pages | 10 |
| Journal | Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering |
| Volume | 38 |
| Issue number | 8 |
| DOIs | |
| State | Published - 20 Apr 2018 |
| Externally published | Yes |
Fingerprint
Dive into the research topics of 'ESO-based Low-speeds Position-sensorless-control of a Five-phase PM Motor Under Single Phase Open Circuit'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver