Device and method for controlling inverter performing feedback control to suppress periodic component and unsteady component of error
US5914866A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 1997 |
| Grant date | Jun 22, 1999 |
| Priority date | — |
| Expiry date | Dec 10, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/4807
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An inverter-control device includes a subtractor for detecting an error between a waveform of a reference current signal generated in synchronization with a waveform of an inverter output current signal and the inverter output current signal, a delay portion for delaying by a prescribed time period a signal obtained by amplifying and removing high frequency component by filtering the error, an error waveform integrating portion for integrating the delayed signal f' output from delay portion, a proportional control portion for amplifying the error, and an adding portion for adding an error amplified signal output from the proportional control portion and an inverter driving waveform pattern output from the error waveform integrating portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.