Motor drive control apparatus
US5410234A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 1993 |
| Grant date | Apr 25, 1995 |
| Priority date | — |
| Expiry date | Jan 26, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor drive control apparatus having an electrical power amplifier for supplying an electrical power to a motor, and a current control loop and speed control loop for controlling the drive of the motor, which includes a current feedforward component calculation section for creating voltage commands to be imposed on respective phases from current commands for the respective phases for the motor and the impedance model of the motor for carrying out a feedforward control by using the voltage commands to be imposed on the respective phases. With the above arrangement, the motor drive control apparatus can create the voltage commands to be imposed on the respective phases regardless of the existence of control dead time elements such as a limited gain set in control loops, and the like so that a command follow-up property is improved when a torque is changed, a follow-up error is reduced over an entire region when the torque is changed, and further a stable control can be achieved in the same way as a conventional apparatus at a steady time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.