Acceleration estimator for speed rate control
US10199973B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 26, 2014 |
| Grant date | Feb 5, 2019 |
| Priority date | — |
| Expiry date | Oct 3, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P2205/07
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Embodiments of the present invention are directed to a controller that is configured to limit the rate of change of speed of a motor (e.g., the acceleration or deceleration) regardless of the operating mode of the motor (e.g., speed, torque, or power control mode). The controller can include an acceleration estimator which monitors the output speed of a motor and provides an acceleration-limited speed set point. The output of the acceleration estimator may be limited to a range of acceptable acceleration values that correspond to the required limits of acceleration and deceleration. The acceleration estimator can be configured such that it causes the speed regulator to override the torque and/or power regulators when the acceleration range is exceeded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.