Evaluation device, evaluation method and control device
US11121659B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2018 |
| Grant date | Sep 14, 2021 |
| Priority date | — |
| Expiry date | May 17, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/3203
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is an evaluation device that determines the necessity of a notch filter inserted in a control system that controls an electric motor by closed loop control. The evaluation device includes: a characteristic acquisition parts for changing a parameter associated with a characteristic of the notch filter from a first value, which is a prescribed value, to a second value, and acquiring a change in a frequency response characteristic of the electric motor when the notch filter is applied; and a determination parts for determining the necessity of the notch filter based on the change in the frequency response characteristic that has been acquired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.