Abstract
The model-based position estimation method is well-suited for sensorless permanent magnet synchronous motor (PMSM) drives in medium- and high-speed range. However, the current sampling error and the inverter nonlinearity cause 1st and 6th harmonics in the estimated position respectively, degrading the estimation accuracy. To address the problem, an improved phase locked loop (PLL) is proposed by embedding the double quasi-proportional-resonant (QPR) controllers. Owing to the AC-signal extraction capability of the QPR controllers, the position harmonics can be separated and eliminated by the investigated PLL without additional filters. The simulation results show that the proposed PLL can improve the position estimation accuracy effectively.
| Original language | English |
|---|---|
| Title of host publication | 2022 International Power Electronics Conference, IPEC-Himeji 2022-ECCE Asia |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 372-377 |
| Number of pages | 6 |
| ISBN (Electronic) | 9784886864253 |
| DOIs | |
| State | Published - 2022 |
| Externally published | Yes |
| Event | 2022 International Power Electronics Conference, IPEC-Himeji 2022-ECCE Asia - Himeji, Japan Duration: 15 May 2022 → 19 May 2022 |
Publication series
| Name | 2022 International Power Electronics Conference, IPEC-Himeji 2022-ECCE Asia |
|---|
Conference
| Conference | 2022 International Power Electronics Conference, IPEC-Himeji 2022-ECCE Asia |
|---|---|
| Country/Territory | Japan |
| City | Himeji |
| Period | 15/05/22 → 19/05/22 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- Sensorless PMSM control
- phase locked loop
- position harmonics elimination
- quasi-proportional-resonant control
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