| Autor: |
Shih-Chin Yang, Sheng-Ming Yang, Jing-Hui Hu |
| Jazyk: |
angličtina |
| Rok vydání: |
2017 |
| Předmět: |
|
| Zdroj: |
IEEE Access, Vol 5, Pp 2685-2695 (2017) |
| Druh dokumentu: |
article |
| ISSN: |
2169-3536 |
| DOI: |
10.1109/ACCESS.2017.2666156 |
| Popis: |
In permanent magnet (PM) machine drives, the initial position is typically estimated based on the machine inductance variation and the flux saturation. The saliency-based method using the voltage signal injection has demonstrated the reliable position estimation for high salient PM machines at initial state. However considering the saliency-based drive on low salient machines, several implementation issues appear due to the low signal-to-noise ratio of position dependent signals. This paper addresses the implementation issues on saliency-based initial position estimation. It is shown that conventional saliency-based estimation methods might not be able to obtain the correct rotor position on low salient machines due to secondary saliency harmonics. A two-step estimation process is proposed to improve the initial position estimation accuracy on low salient PM machines. Two PM machines with different saliency ratios are tested for the experimental evaluation. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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