Research Article
Windowed Least Square Algorithm Based PMSM Parameters Estimation
Table 1
Estimation result comparison of EKF, RLS, and WLS when
,
, and
are fixed value.
| | Temperature (°C) | 23.4 | 30 | 40 | 50 | 60 | 70 | 80 |
| | Actual data () | 0.9664 | 1.0008 | 1.0373 | 1.0770 | 1.1245 | 1.1592 | 1.1751 | | EKF | Estimation data | 0.9694 | 1.0036 | 1.0400 | 1.0795 | 1.1266 | 1.1612 | 1.1611 | | RLS | 0.9607 | 1.0077 | 1.0271 | 1.0712 | 1.1216 | 1.1451 | 1.1771 | | WLS | 0.9653 | 0.9997 | 1.0362 | 1.0760 | 1.1235 | 1.1583 | 1.1742 |
| | Actual data (mH) | 4.24 | 4.26 | 4.28 | 4.30 | 4.31 | 4.34 | 4.36 | | EKF | Estimation data | 4.2368 | 4.2882 | 4.2475 | 4.2941 | 4.3331 | 4.3755 | 4.3595 | | RLS | 4.1602 | 4.3210 | 4.3506 | 4.2611 | 4.2814 | 4.2021 | 4.3807 | | WLS | 4.2465 | 4.2664 | 4.2861 | 4.3058 | 4.3157 | 4.345 | 4.4365 |
| | Actual data (mH) | 6.21 | 6.26 | 6.30 | 6.34 | 6.40 | 6.44 | 6.48 | | EKF | Estimation data | 6.2095 | 6.2604 | 6.3001 | 6.3400 | 6.4012 | 6.4395 | 6.4800 | | RLS | 6.2531 | 6.2551 | 6.5172 | 6.3703 | 6.4118 | 6.4658 | 6.4727 | | WLS | 6.2089 | 6.2581 | 6.2982 | 6.3387 | 6.3981 | 6.4384 | 6.4780 |
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