Abstract
To improve the dynamic performance of high-speed PMSM control system, an integrated controller for both velocity and current loops is designed based on the nonlinear dynamic math model of PMSM, which, combined with the sliding-mode variable-structure control, applies the precision linearization theory to solve the nonlinear problem of speed-current coupling caused by the close electromagnetic and mechanic time constants of high-speed PMSM. An adaptive method of online parameter identification is designed for the sensorless operation of high-speed PMSM, which, with one math model, identifies the velocity and other motor parameters at the same time. Simulative and experimental results show that the control system has better static/dynamic performance and robustness.
| Original language | English |
|---|---|
| Pages (from-to) | 58-63 |
| Number of pages | 6 |
| Journal | Dianli Zidonghua Shebei/Electric Power Automation Equipment |
| Volume | 33 |
| Issue number | 6 |
| DOIs | |
| State | Published - Jun 2013 |
| Externally published | Yes |
Keywords
- Models
- Online identification
- PMSM
- Precision linearization
- Sensorless
- Sliding-mode variable-structure control
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