Controller for motor
US7830106B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2007 |
| Grant date | Nov 9, 2010 |
| Priority date | — |
| Expiry date | May 15, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P2207/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A controller for a motor that can set an induced voltage constant of a motor of a double rotor type according to an operational state of the motor and expand the controllable range of the motor. The controller may include a command calculator that calculates a command value of the induced voltage constant of a motor based on the output voltage of a direct-current power supply, the number of revolutions Nm of the motor and a torque command in such a manner that the magnitude of a vector sum of a d-axis current and a q-axis current that have to be supplied in order to produce the torque according to the torque command is minimized, and a phase difference controller that calculates a command value of a rotor phase difference according to the command value and outputs the command value to an actuator to change the rotor phase difference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.