Apparatus and method for controlling operation of a reciprocating compressor
US7335001B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2004 |
| Grant date | Feb 26, 2008 |
| Priority date | — |
| Expiry date | Sep 22, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P25/032
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus and a method for controlling an operation of a reciprocating compressor can improve efficiency of a compressor by reconciling an operation frequency with a mechanical resonant frequency. The apparatus includes a mechanical resonant frequency calculating unit for calculating mechanical resonant frequency, using a current applied to a compressor and a stroke; an operation frequency reference value determining unit for determining an operation frequency reference value within a predetermined range of the calculated mechanical resonant frequency; and a controller for comparing the determined operation frequency and a current operation frequency, and then variably controlling an operation frequency of the compressor according to the comparison result, so that stroke feedback or TDC feedback can be controlled more accurately. Accordingly, an operational efficiency of the compressor is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.