公开(公告)号：US11445024B2

公开(公告)日：2022-09-13

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

IPC: H04L67/12 ,  G16Y40/35 ,  G16Y20/10 ,  G16Y10/80 ,  G16Y40/20

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.

公开(公告)号：US11416796B2

公开(公告)日：2022-08-16

申请号：US16860781

申请日：2020-04-28

Applicant: Johnson Controls Technology Company

Inventor： Andrew J. Przybylski ,  Michael J. Wenzel ,  John H. Burroughs

IPC: G06Q10/06 ,  G06Q10/04 ,  G06Q30/02 ,  G06Q50/06

Abstract: A method for controlling an energy production and distribution system includes identifying sources that supply input resources, subplants that produce output resources using the input resources, and sinks that consume the output resources. The method includes obtaining a cost function including a cost of producing the output resources and generating a transit time constraint that requires the input resources be sent from the sources to the subplants at a first departure time that occurs before a first arrival time at which the input resources are predicted to be used by the subplants. The method includes solving an optimization problem to determine an amount of the output resources to produce at each of multiple time steps within a time period. Solving the optimization problem includes performing an optimization of the cost function subject to the transit time constraint.

公开(公告)号：US11379935B2

公开(公告)日：2022-07-05

申请号：US16112582

申请日：2018-08-24

Applicant: Johnson Controls Technology Company

Inventor： Michael J. Wenzel

IPC: G06Q50/06 ,  F01K13/02 ,  F01K13/00 ,  G05B13/04 ,  G06Q10/00 ,  G06Q30/02

Abstract: A control system for cost optimal operation of an energy facility including equipment covered by a maintenance contract includes equipment configured to operate during an optimization period and a controller. The controller modifies a cost function to include a maintenance cost term that defines a maintenance cost as a function of a rate variable and an equipment usage variable. The controller simulates a cost of operating the energy facility over the optimization period at each of a plurality of different values of the rate variable, selects a value of the rate variable that results in a lowest cost of operating the energy facility over the optimization period, performs an online optimization of the cost function with the rate variable set to the selected value to generate one or more setpoints for the equipment, and operates the equipment during the optimization period in accordance with the generated setpoints.

公开(公告)号：US11120411B2

公开(公告)日：2021-09-14

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

IPC: G06Q10/00 ,  G05B13/04 ,  G06Q10/06

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.

公开(公告)号：US11099526B2

公开(公告)日：2021-08-24

申请号：US16284895

申请日：2019-02-25

Applicant: Johnson Controls Technology Company

Inventor： Michael J. Wenzel ,  Kirk H. Drees

IPC: G05B13/02 ,  G06Q30/02 ,  G06F1/3203 ,  H04L12/14 ,  H04L12/28 ,  G05D23/19 ,  F24F11/30 ,  F24F11/62 ,  G05F1/66 ,  F24F11/46

Abstract: A cascaded control system is configured to control power consumption of a building during a demand limiting period. The cascaded control system includes an energy use setpoint generator and a feedback controller. The energy use setpoint generator is configured to use energy pricing data and measurements of a variable condition within the building to generate an energy use setpoint during the demand limiting period. The feedback controller is configured to use a difference between the energy use setpoint and a measured energy use to generate a control signal for building equipment that operate to affect the variable condition within the building during the demand limiting period.

公开(公告)号：US10956842B2

公开(公告)日：2021-03-23

申请号：US16601377

申请日：2019-10-14

Applicant: Johnson Controls Technology Company

Inventor： Michael J. Wenzel ,  Matthew J. Ellis

IPC: G06Q10/00 ,  G06Q10/06 ,  G06Q50/06 ,  G05B13/02 ,  H02J3/38 ,  H02J13/00 ,  H02J3/32 ,  H02J3/00 ,  H02J3/28 ,  H02J3/14

Abstract: A controller for central plant equipment obtains a model of one or more sources configured to supply input resources, one or more subplants configured to convert the input resources to output resources, and one or more sinks configured to consume the output resources. The controller generates a resource balance constraint that requires balance between a first amount of each resource and a second amount of each resource. The first amount of each resource includes a sum of an amount of the resource supplied by the sources and an amount of the resource produced by the subplants. The second amount of each resource includes a sum of an amount of the resource consumed by the subplants and an amount of the resource consumed by the sinks. The controller performs an optimization of an objective function subject to the resource balance constraint to determine target amounts of each resource to be produced or consumed by the central plant equipment at a plurality of times within an optimization period. The controller controls the central plant equipment to produce or consume the target amounts of each resource at the plurality of times within the optimization period.

公开(公告)号：US20210055702A1

公开(公告)日：2021-02-25

申请号：US16692346

申请日：2019-11-22

Applicant: Johnson Controls Technology Company

Inventor： Andrew J. Przybylski ,  Michael J. Wenzel ,  John H. Burroughs

IPC: G05B17/02

Abstract: A method for operating equipment according to sequence of operation using geometric models including obtaining a first geometric model for a first set of equipment and a second geometric model for a second set of equipment, the first set of equipment and the second set of equipment defined by the sequence of operation for the equipment, locating, on the first geometric model, a first nearest operating point based on a desired operating point, generating a first modified geometric model by removing one or more operating points that do not satisfy the first nearest operating point, generating a merged geometric model by merging the first modified geometric model with the second geometric model, locating a second nearest operating point based on a modified desired operating point, and operating the equipment in accordance with the first nearest operating point and the second nearest operating point.

公开(公告)号：US10900686B2

公开(公告)日：2021-01-26

申请号：US16048092

申请日：2018-07-27

Applicant: Johnson Controls Technology Company

Inventor： Graeme Willmott ,  John H. Burroughs ,  Mohammad N. ElBsat ,  Michael J. Wenzel ,  Matthew J. Asmus

IPC: F24F11/46 ,  G05B15/02 ,  G05B13/04 ,  F24F11/64 ,  F24F11/65 ,  F24F11/62 ,  F24F11/30 ,  F24F140/50 ,  F24F140/00

Abstract: In one aspect, a system for operations an energy plant obtains thermal energy load allocation data indicating time dependent thermal energy load of the energy plant. The system determines, for a time period, an operating state of the energy plant from a plurality of predefined operating states based on the thermal energy load allocation data. The system determines operating parameters of the energy plant according to the determined operating state. The system operates the energy plant according to the determined operating parameters.

公开(公告)号：US20200371482A1

公开(公告)日：2020-11-26

申请号：US16418715

申请日：2019-05-21

Applicant: Johnson Controls Technology Company

Inventor： Anas W. I. Alanqar ,  Matthew J. Ellis ,  Michael J. Wenzel ,  Mohammad N. ElBsat

IPC: G05B13/04 ,  G06N20/00

Abstract: An environmental control system for a building including building equipment operable to affect a variable state or condition of the building. The system includes a controller including a processing circuit. The processing circuit can obtain training data relating to operation of the building equipment and can perform a system identification process to identify parameters of a system model using the training data. The processing circuit can augment the system model with a disturbance model and estimate values of a historical heat disturbance in the training data based on the augmented system model. The processing circuit can train one or more heat disturbance models based on the training data and the estimated values. The processing circuit can predict a heat disturbance using the augmented system model along with the one or more heat disturbance models and can control the building equipment based on the predicted heat disturbance.

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

IPC: F24F11/30 ,  F24F11/56 ,  F24F11/61 ,  F24F11/65 ,  G05B13/04

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.