Apparatus and method for controlling operation of compressor
US6930462B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2003 |
| Grant date | Aug 16, 2005 |
| Priority date | — |
| Expiry date | Nov 25, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/43182
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In an apparatus and a method for controlling operation of a compressor, by removing deviation generated by resistance and inductance and removing an error in a stroke estimation value of a compressor, operation of the compressor can be accurately controlled. The apparatus includes a counter electromotive force detector for detecting a counter electromotive force generated at a motor of a compressor. A stroke calculator calculates a stroke estimation value of the compressor on the basis of the counter electromotive force, and a stroke controller controls a stroke of the compressor by varying a voltage applied to the motor on the basis of the calculated stroke estimation value and a stroke reference value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.