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公开(公告)号:US20210286334A1
公开(公告)日:2021-09-16
申请号:US17330741
申请日:2021-05-26
Applicant: Johnson Controls Technology Company
Inventor: Mohammad N. ELBSAT , Michael J. Wenzel , Nicole A. Madison , Tricia J. Valentine , Collin W. Eggert , Matthew J. Asmus , James P. Kummer , Carol T. Tumey , Peter A. Craig
IPC: G05B19/042 , G06Q30/02 , G06Q50/06 , G05B15/02
Abstract: An energy optimization system for a building includes a processing circuit configured to generate a user interface including an indication of one or more economic load demand response (energy) operation parameters, one or more first participation hours, and a first load reduction amount for each of the one or more first participation hours. The processing circuit is configured to receive one or more overrides of the one or more first participation hours from the user interface, generate one or more second participation hours, a second load reduction amount for each of the one or more second participation hours, and one or more second equipment loads for the one or more pieces of building equipment based on the received one or more overrides, and operate the one or more pieces of building equipment to affect an environmental condition of the building based on the one or more second equipment loads.
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公开(公告)号:US20190324487A1
公开(公告)日:2019-10-24
申请号:US16457302
申请日:2019-06-28
Applicant: Johnson Controls Technology Company
Inventor: Mohammad N. ELBSAT , Michael J. WENZEL
Abstract: A central plant includes storage devices configured to store resources purchased from a utility or generated by the central plant and to discharge the one or more resources. The central plant includes a controller configured to obtain a cost function comprising a peak load contribution (PLC) term representing a cost based on an amount of the one or more resources purchased during coincidental peak (CP) subperiods. The controller is configured to modify the cost function by applying a peak subperiods mask to the PLC term, wherein, for each subperiod, the peak subperiods mask modifies a portion of the PLC term corresponding to the subperiod based on a probability that the subperiod will be one of the CP subperiods. The controller is also configured to perform an optimization of the modified cost function.
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公开(公告)号:US20210055701A1
公开(公告)日:2021-02-25
申请号:US17071633
申请日:2020-10-15
Applicant: Johnson Controls Technology Company
Inventor: Mohammad N. ELBSAT , Michael J. WENZEL , Graeme WILLMOTT , Matthew J. ASMUS
IPC: G05B13/04 , G05F1/66 , G05B19/04 , G05B19/042
Abstract: Disclosed herein are related to a system, a method, and a non-transitory computer readable medium for operating an energy plant. In one aspect, the system generates a regression model of a produced thermal energy load produced by a supply device of the plurality of devices. The system predicts the produced thermal energy load produced by the supply device for a first time period based on the regression model. The system determines a heat capacity of gas or liquid in the loop based on the predicted produced thermal energy load. The system generates a model of mass storage based on the heat capacity. The system predicts an induced thermal energy load during a second time period at a consuming device of the plurality of devices based on the model of the mass storage. The system operates the energy plant according to the predicted induced thermal energy load.
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公开(公告)号:US20200370771A1
公开(公告)日:2020-11-26
申请号:US16590783
申请日:2019-10-02
Applicant: Johnson Controls Technology Company
Inventor: Anas W. I. Alanqar , Fang Du , Michael J. Wenzel , Matthew J. Ellis , Mohammad N. ELBSAT
Abstract: An environmental control system for a building including heating, ventilation, or air conditioning (HVAC) equipment that operates to affect a zone of the building and a controller including a processing circuit. The processing circuit is configured to estimate a thermal resistance between air of the zone and of an external space using values of a temperature of the zone air, a temperature of the external space air, and a heat transfer rate of the HVAC equipment, each value corresponding to a different time step within a time period. The processing circuit is configured to use the thermal resistance, time step specific values of the temperatures, and time step specific values of the heat transfer rate to estimate corresponding values of a heat disturbance. The processing circuit is configured to operate the HVAC equipment using a model-based control technique based on the heat disturbance values.
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公开(公告)号:US20210285671A1
公开(公告)日:2021-09-16
申请号:US17338351
申请日:2021-06-03
Applicant: Johnson Controls Technology Company
Inventor: Fang DU , Michael J. WENZEL , Mohammad N. ELBSAT
Abstract: A method for controlling HVAC equipment for a building includes generating, based on historical building data, a discomfort tolerance defining an acceptable amount of occupant discomfort, determining a first value of an environmental condition at which the occupant discomfort is predicted to exceed the discomfort tolerance in a first direction, determining a second value of the environmental condition at which the occupant discomfort is predicted to exceed the discomfort tolerance in a second direction opposite the first direction, and controlling the HVAC equipment to maintain the environmental condition between the first value and the second value.
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公开(公告)号:US20210152388A1
公开(公告)日:2021-05-20
申请号:US16684371
申请日:2019-11-14
Applicant: Johnson Controls Technology Company
Inventor: Mohammad N. ELBSAT
Abstract: A controller for building equipment that operate to provide heating or cooling for a building or campus. The controller includes a processing circuit configured to perform an optimization of an objective function subject to an override constraint to determine amounts of one or more resources to be produced by the building equipment and control the building equipment to produce the amounts of the one or more resources determined by performing the optimization subject to the override constraint. The override constraint overrides an output of the optimization by specifying an override amount of a first resource of the one or more resources to be produced by a first subset of the building equipment.
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公开(公告)号:US20200041158A1
公开(公告)日:2020-02-06
申请号:US16598539
申请日:2019-10-10
Applicant: Johnson Controls Technology Company
Inventor: Robert D. Turney , Matthew J. Ellis , Michael J. Wenzel , Mohammad N. ELBSAT , Juan Esteban Tapiero Bernal , Brennan H. Fentzlaff
IPC: F24F11/47 , G05D23/19 , F24F11/30 , F24F11/64 , F24F11/58 , F24F11/52 , F24F11/89 , F24F11/00 , G05B13/04 , G05B15/02
Abstract: A thermostat for a building zone includes at least one of a model predictive controller and an equipment controller. The model predictive controller is configured to obtain a cost function that accounts for a cost of operating HVAC equipment during each of a plurality of time steps, use a predictive model to predict a temperature of the building zone during each of the plurality of time steps, and generate temperature setpoints for the building zone for each of the plurality of time steps by optimizing the cost function subject to a constraint on the predicted temperature. The equipment controller is configured to receive the temperature setpoints generated by the model predictive controller and drive the temperature of the building zone toward the temperature setpoints during each of the plurality of time steps by operating the HVAC equipment to provide heating or cooling to the building zone.
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公开(公告)号:US20190311332A1
公开(公告)日:2019-10-10
申请号:US16449198
申请日:2019-06-21
Applicant: Johnson Controls Technology Company
Inventor: Robert D. TURNEY , Sudhi R. SINHA , Masayuki NONAKA , Zhizhong PANG , Yoshiko WATANABE , Mohammad N. ELBSAT , Michael J. WENZEL
Abstract: A model predictive maintenance system for building equipment including an equipment controller to operate the building equipment to affect a variable state or condition in a building. The system includes an operational cost predictor to predict a cost of operating the building equipment over a duration of an optimization period, a maintenance cost predictor to predict a cost of performing maintenance on the building equipment, and a cost incentive manager to determine whether any cost incentives are available and, in response to a determination that cost incentives are available, identify the cost incentives. The system includes an objective function optimizer to optimize an objective function to predict a total cost associated with the building equipment over the duration of the optimization period. The objective function includes the predicted cost of operating the building equipment, the predicted cost of performing maintenance on the building equipment, and, if available, the cost incentives.
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公开(公告)号:US20210158975A1
公开(公告)日:2021-05-27
申请号:US16695519
申请日:2019-11-26
Applicant: Johnson Controls Technology Company
Inventor: Robert D. Turney , Serdar Suindykov , Mohammad N. ELBSAT , Michael J. Wenzel
Abstract: A smart edge controller for building equipment that operates to affect a variable state or condition within a building. The controller includes processors and non-transitory computer-readable media storing instructions that, when executed by the processors, cause the processors to perform operations including obtaining sensor data indicating environmental conditions of the building and include determining an amount of available processing resources at the smart edge controller or at the building equipment. The operations include automatically scaling a level of complexity of an optimization of a cost function based on the available processing resources and include performing the optimization of the cost function at the automatically scaled level of complexity to generate a first setpoint trajectory. The first setpoint trajectory includes operating setpoints for the building equipment at time steps within an optimization period. The operations include operating the building equipment based on the first setpoint trajectory.
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公开(公告)号:US20210141346A1
公开(公告)日:2021-05-13
申请号:US16680881
申请日:2019-11-12
Applicant: Johnson Controls Technology Company
Inventor: Michael J. Wenzel , Robert D. Turney , Jiaqi Li , Matthew J. Ellis , Mohammad N. ELBSAT
IPC: G05B13/04 , H04L29/08 , H04L12/861 , H04L12/26 , H04L12/24
Abstract: A controller for operating building equipment of a building including processors and non-transitory computer-readable media storing instructions that, when executed by the processors, cause the processors to perform operations including obtaining a first setpoint trajectory from a cloud computation system. The first setpoint trajectory includes setpoints for the building equipment or for a space of the building. The setpoints correspond to time steps of an optimization period. The operations include determining whether a connection between the controller and the cloud computation system is active or inactive at a time step of the optimization period and determining an active setpoint for the time step of the optimization period using either the first or second setpoint trajectory based on whether the connection between the controller and the cloud computation system is active or inactive at the time step. The operations include operating the building equipment based on the active setpoint.
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