Variable refrigerant flow system with pressure optimization using extremum-seeking control
US10895393B2 · kind B2 · utility
0Cited by
12References
20Claims
0Family size
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Key dates
| Filing date | Jul 6, 2018 |
| Grant date | Jan 19, 2021 |
| Priority date | — |
| Expiry date | Jul 19, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F2140/12
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A variable refrigerant flow (VRF) system for a building includes a plurality of outdoor VRF units configured to heat or cool a refrigerant for use in heating or cooling the building and an extremum-seeking controller. The extremum-seeking controller is configured to determine a total power consumption of the plurality of outdoor VRF units, generate a pressure setpoint for the plurality of outdoor VRF units using an extremum-seeking control technique that drives the total power consumption toward an extremum, and use the pressure setpoint to operate the plurality of outdoor VRF units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.