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公开(公告)号：US20180004173A1
公开(公告)日：2018-01-04
申请号：US15635754
申请日：2017-06-28
Applicant: Johnson Controls Technology Company
Inventor： Nishith R. Patel , Matthew J. Ellis , Michael J. Wenzel , Robert D. Turney , Brett M. Lenhardt
Abstract: A model predictive control system is used to optimize energy cost in a variable refrigerant flow (VRF) system. The VRF system includes an outdoor subsystem and a plurality of indoor subsystems. The model predictive control system includes a high-level model predictive controller (MPC) and a plurality of low-level indoor MPCs. The high-level MPC performs a high-level optimization to generate an optimal indoor subsystem load profile for each of the plurality of indoor subsystems. The optimal indoor subsystem load profiles optimize energy cost. Each of the low-level indoor MPCs performs a low-level optimization to generate optimal indoor setpoints for one or more indoor VRF units of the corresponding indoor subsystem. The indoor setpoints can include temperature setpoints and/or refrigerant flow setpoints for the indoor VRF units.
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公开(公告)号：US10222427B2
公开(公告)日：2019-03-05
申请号：US15247784
申请日：2016-08-25
Applicant: Johnson Controls Technology Company
Inventor： Michael J. Wenzel , Brett M. Lenhardt , Kirk H. Drees
Abstract: An electrical energy storage system includes a battery configured to store and discharge electric power to an energy grid, a power inverter configured to use battery power setpoints to control an amount of the electric power stored or discharged from the battery, and a controller. The controller is configured to generate optimal values for the battery power setpoints as a function of both an estimated amount of battery degradation and an estimated amount of frequency response revenue that will result from the battery power setpoints.
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公开(公告)号：US20170104342A1
公开(公告)日：2017-04-13
申请号：US15247872
申请日：2016-08-25
Applicant: Johnson Controls Technology Company
Inventor： Mohammad N. ElBsat , Michael J. Wenzel , Brett M. Lenhardt
Abstract: A frequency regulation and ramp rate control system includes a battery configured to store and discharge electric power, a battery power inverter configured to control an amount of the electric power in the battery, a photovoltaic power inverter configured to control an electric power output of a photovoltaic field, and a controller. The controller generates a battery power setpoint for the battery power inverter and a photovoltaic power setpoint for the photovoltaic power inverter. The generated setpoints cause the battery power inverter and the photovoltaic power inverter to simultaneously perform both frequency regulation and ramp rate control.
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公开(公告)号：US20210018214A1
公开(公告)日：2021-01-21
申请号：US16516070
申请日：2019-07-18
Applicant: Johnson Controls Technology Company
Inventor： Jack A. Peterson , Kirk H. Drees , Brennan H. Fentzlaff , Homero L. Noboa , Brett M. Lenhardt
Abstract: A system for controlling a flow rate of a fluid through a valve is provided. The system includes a valve and an actuator. The actuator includes a motor and a drive device that is coupled to the valve for driving the valve between multiple positions. The system further includes a flow rate sensor and a controller that is communicably coupled with the flow rate sensor and the motor. The controller is configured to receive a first flow rate setpoint, determine a first actuator position setpoint using a proportional variable deadband control technique based on the first flow rate setpoint and a flow rate measurement, and receive a second flow rate setpoint. In response to a determination that certain low flow criteria are satisfied, the controller is configured to determine a second actuator position setpoint using the proportional variable deadband control technique based on a low flow compensation setpoint.
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公开(公告)号：US10809676B2
公开(公告)日：2020-10-20
申请号：US16601391
申请日：2019-10-14
Applicant: Johnson Controls Technology Company
Inventor： Nishith R. Patel , Matthew J. Ellis , Michael J. Wenzel , Robert D. Turney , Brett M. Lenhardt
IPC: G05D7/00 , G05D11/00 , G05B13/04 , G05B15/02 , G05B17/02 , F24F11/62 , F24F11/30 , G05D7/06 , F24F11/46
Abstract: A heating, ventilation, or air conditioning (HVAC) system for a building includes indoor subsystems, a high-level controller, and low-level controllers. Each indoor subsystem includes one or more indoor units configured to provide heating or cooling to one or more building spaces. The high-level controller generates a plurality of indoor subsystem energy targets, each indoor subsystem energy target corresponding to one of the plurality of indoor subsystems and generated based on a thermal capacitance of one or more building spaces to which heating or cooling is provided by the corresponding indoor subsystem. Each low-level indoor controller corresponds to one of the indoor subsystems and generates indoor setpoints for the one or more indoor units of the corresponding indoor subsystem using the indoor subsystem energy target for the corresponding indoor subsystem and operates the one or more indoor units of the corresponding indoor subsystem using the indoor setpoints.
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Patent Agency Ranking
公开(公告)号：US11415335B2
公开(公告)日：2022-08-16
申请号：US16516070
申请日：2019-07-18
Applicant: Johnson Controls Technology Company
Inventor： Jack A. Peterson , Kirk H. Drees , Brennan H. Fentzlaff , Homero L. Noboa , Brett M. Lenhardt
Abstract: A system for controlling a flow rate of a fluid through a valve is provided. The system includes a valve and an actuator. The actuator includes a motor and a drive device that is coupled to the valve for driving the valve between multiple positions. The system further includes a flow rate sensor and a controller that is communicably coupled with the flow rate sensor and the motor. The controller is configured to receive a first flow rate setpoint, determine a first actuator position setpoint using a proportional variable deadband control technique based on the first flow rate setpoint and a flow rate measurement, and receive a second flow rate setpoint. In response to a determination that certain low flow criteria are satisfied, the controller is configured to determine a second actuator position setpoint using the proportional variable deadband control technique based on a low flow compensation setpoint.
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公开(公告)号：US11068000B2
公开(公告)日：2021-07-20
申请号：US16509264
申请日：2019-07-11
Applicant: Johnson Controls Technology Company
Inventor： Jack A. Peterson , Brett M. Lenhardt , Homero L. Noboa , Brennan H. Fentzlaff
Abstract: A system for controlling a flow rate of a fluid through a valve is provided. The system includes a valve and an actuator. An actuator drive device is driven by an actuator motor and is coupled to the valve for driving the valve between multiple positions. The system further includes a flow rate sensor configured to measure the flow rate of the fluid through the valve and a controller that is communicably coupled with the flow rate sensor. The controller is configured to receive a flow rate measurement from the flow rate sensor, adjust a control deadband based on an actuator command history, and determine a compensated position setpoint using the flow rate measurement, the adjusted control deadband, and a proportional variable deadband control technique. The controller is further configured to operate the motor to drive the drive device to the compensated actuator position setpoint.
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公开(公告)号：US20210034024A1
公开(公告)日：2021-02-04
申请号：US17073781
申请日：2020-10-19
Applicant: Johnson Controls Technology Company
Inventor： Nishith R. Patel , Matthew J. Ellis , Michael J. Wenzel , Robert D. Turney , Brett M. Lenhardt
Abstract: A heating, ventilation, or air conditioning (HVAC) system for a building includes HVAC equipment configured to provide heating or cooling to one or more building spaces and one or more controllers. The one or more controllers include one or more processing circuits configured to generate energy targets for the one or more building spaces using a thermal capacitance of the one or more building spaces to which the heating or cooling is provided by the HVAC equipment, generate setpoints for the HVAC equipment using the energy targets for the one or more building spaces to which the heating or cooling is provided by the HVAC equipment, and operate the HVAC equipment using the setpoints to provide the heating or cooling to the one or more building spaces.
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公开(公告)号：US20200041966A1
公开(公告)日：2020-02-06
申请号：US16601391
申请日：2019-10-14
Applicant: Johnson Controls Technology Company
Inventor： Nishith R. Patel , Matthew J. Ellis , Michael J. Wenzel , Robert D. Turney , Brett M. Lenhardt
Abstract: A heating, ventilation, or air conditioning (HVAC) system for a building includes a plurality of indoor subsystems, a high-level controller, and a plurality of low-level controllers. Each indoor subsystem includes one or more indoor units configured to provide heating or cooling to one or more building spaces. The high-level controller is configured to generate a plurality of indoor subsystem energy targets, each indoor subsystem energy target corresponding to one of the plurality of indoor subsystems and generated based on a thermal capacitance of one or more building spaces to which heating or cooling is provided by the corresponding indoor subsystem. Each low-level indoor controller corresponds to one of the indoor subsystems and is configured to generate indoor setpoints for the one or more indoor units of the corresponding indoor subsystem using the indoor subsystem energy target for the corresponding indoor subsystem and operate the one or more indoor units of the corresponding indoor subsystem using the indoor setpoints.
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公开(公告)号：US20210011497A1
公开(公告)日：2021-01-14
申请号：US16509264
申请日：2019-07-11
Applicant: Johnson Controls Technology Company
Inventor： Jack A. Peterson , Brett M. Lenhardt , Homero L. Noboa , Brennan H. Fentzlaff
Abstract: A system for controlling a flow rate of a fluid through a valve is provided. The system includes a valve and an actuator. An actuator drive device is driven by an actuator motor and is coupled to the valve for driving the valve between multiple positions. The system further includes a flow rate sensor configured to measure the flow rate of the fluid through the valve and a controller that is communicably coupled with the flow rate sensor. The controller is configured to receive a flow rate measurement from the flow rate sensor, adjust a control deadband based on an actuator command history, and determine a compensated position setpoint using the flow rate measurement, the adjusted control deadband, and a proportional variable deadband control technique. The controller is further configured to operate the motor to drive the drive device to the compensated actuator position setpoint.
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