Invention Grant
- Patent Title: Variable refrigerant flow system with pressure optimization using extremum-seeking control
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Application No.: US16029246Application Date: 2018-07-06
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Publication No.: US10895393B2Publication Date: 2021-01-19
- Inventor: Robert D. Turney , Liming Yang , Yunrui Wang , Yasutaka Yoshida , Kazumoto Urata , Timothy I. Salsbury , John M. House
- Applicant: Johnson Controls Technology Company
- Applicant Address: US MI Auburn Hills
- Assignee: Johnson Controls Technology Company
- Current Assignee: Johnson Controls Technology Company
- Current Assignee Address: US MI Auburn Hills
- Agency: Foley & Lardner LLP
- Main IPC: F24F11/46
- IPC: F24F11/46 ; G05B13/02 ; F24F11/56 ; F24F11/64 ; F24F11/65 ; F24F11/86
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.
Public/Granted literature
- US20200011561A1 VARIABLE REFRIGERANT FLOW SYSTEM WITH PRESSURE OPTIMIZATION USING EXTREMUM-SEEKING CONTROL Public/Granted day:2020-01-09
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