System and method for inertial compensation in a motor drive
US12191785B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2023 |
| Grant date | Jan 7, 2025 |
| Priority date | — |
| Expiry date | Jul 16, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P23/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor drive receives a position feedback signal from a position sensor operatively connected to a motor. The motor drive receives a command signal defining a desired operation of the motor. A processor in the motor drive generates an acceleration feedforward signal from the command signal and an acceleration reference signal from the command signal and the position feedback signal. The processor also generates an estimated disturbance acceleration from the acceleration reference signal. The acceleration feedforward signal is multiplied by a first gain to obtain a first product, and the estimated disturbance acceleration by a second gain to obtain a second product. The first and second gains are functions of first and second portions of the system inertia. A current reference signal is generated based on the first product and second products, and an output voltage to the motor is generated from the current reference signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.