Method and system for controlling a motor
US6777904B1 · kind B1 · utility
156Cited by
8References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2003 |
| Grant date | Aug 17, 2004 |
| Priority date | — |
| Expiry date | Feb 25, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/64
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method of transitioning a motor from a torque control mode to a speed control mode includes providing the motor with a torque command to eliminate torque holes at the transition. A speed controller generates a speed error, which is used to generate two torque terms. The first torque term is proportional to the speed error, and the second torque term includes the integral of the speed error. A third torque term comprises a feedforward torque, which is added to the first two torque terms to generate the torque command.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.