公开(公告)号：US20200042918A1

公开(公告)日：2020-02-06

申请号：US16601377

申请日：2019-10-14

Applicant: Johnson Controls Technology Company

Inventor： Michael J. Wenzel ,  Matthew J. Ellis

IPC: 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：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.

公开(公告)号：US20190340709A1

公开(公告)日：2019-11-07

申请号：US16518314

申请日：2019-07-22

Applicant: Johnson Controls Technology Company

Inventor： MOHAMMAD N. ELBSAT ,  Michael J. Wenzel

IPC: G06Q50/06 ,  G06Q30/02 ,  G05B13/02

Abstract: A controller is configured to obtain a cost function defining a cost of operating building equipment over a time period. The cost function includes a revenue term defining revenue to be obtained by operating the equipment to participate in an incentive program over the time period. The controller is configured to modify the cost function to account for an initial purchase cost of a new asset to be added to the equipment and an effect of the new asset on the cost of operating the equipment. The initial purchase cost of the new asset and the effect of the new asset on the cost of operating the equipment are functions of asset size variables. The controller is also configured to perform an optimization of the modified cost function to determine values for energy load setpoints, the asset size variables, and participation in the incentive program over the time period.

公开(公告)号：US20190295034A1

公开(公告)日：2019-09-26

申请号：US16438961

申请日：2019-06-12

Applicant: Johnson Controls Technology Company

Inventor： Michael J. Wenzel ,  Mohammad N. ElBsat ,  Yasutaka Yoshida ,  Mori Hayato ,  Robert D. Turney

IPC: G06Q10/08 ,  G06Q30/08

Abstract: An automatic parts resupply system for building equipment including a model predictive maintenance system configured to determine a service time at which to perform service on the building equipment by performing a predictive optimization of a total cost of operating and servicing the building equipment over a time period. The service time is a decision variable in the predictive optimization. The automatic parts resupply system includes a resupply manager. The resupply manager is configured to generate a parts resupply order for the building equipment based on a result of the predictive optimization. The resupply manager is configured to determine a transmission time at which to transmit the parts resupply order to a parts supplier. The resupply manager is configured to transmit the parts resupply order to the parts supplier at the transmission time.

公开(公告)号：US10386820B2

公开(公告)日：2019-08-20

申请号：US14634599

申请日：2015-02-27

Applicant: Johnson Controls Technology Company

Inventor： Michael J. Wenzel ,  Kirk H. Drees

IPC: G02B13/02 ,  G05B19/418 ,  G05B13/02 ,  G05F1/66 ,  G06N20/00 ,  G05B13/04 ,  G05B15/02 ,  G06Q10/04 ,  G06Q10/06 ,  G06Q50/06 ,  G06N99/00

Abstract: An optimization system for a central plant includes a processing circuit configured to receive load prediction data indicating building energy loads and utility rate data indicating a price of one or more resources consumed by equipment of the central plant to serve the building energy loads. The optimization system includes a high level optimization module configured to generate an objective function that expresses a total monetary cost of operating the central plant over an optimization period as a function of the utility rate data and an amount of the one or more resources consumed by the central plant equipment. The optimization system includes a demand charge module configured to modify the objective function to account for a demand charge indicating a cost associated with maximum power consumption during a demand charge period. The high level optimization module is configured to optimize the objective function over the demand charge period.

公开(公告)号：US10197632B2

公开(公告)日：2019-02-05

申请号：US15247777

申请日：2016-08-25

Applicant: Johnson Controls Technology Company

Inventor： Michael J. Wenzel ,  Kirk H. Drees

IPC: G01R31/36 ,  G06Q50/06 ,  H02J3/32 ,  G05B13/04 ,  H02J3/38 ,  H02M7/44 ,  H02J3/00

Abstract: A frequency response optimization includes a battery that stores and discharges electric power, a power inverter that uses battery power setpoints to control an amount of the electric power stored or discharged from the battery, and a frequency response controller. The frequency response controller receives a regulation signal from an incentive provider, predicts future values of the regulation signal, and uses the predicted values of the regulation signal to generate the battery power setpoints for the power inverter.

公开(公告)号：US20190033800A1

公开(公告)日：2019-01-31

申请号：US16048162

申请日：2018-07-27

Applicant: Johnson Controls Technology Company

Inventor： Mohammad N. Elbsat ,  Michael J. Wenzel ,  Graeme Willmott ,  Matthew J. Asmus

IPC: G05B13/04 ,  G05F1/66 ,  F24F11/46 ,  G05B19/04

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.

公开(公告)号：US20190032944A1

公开(公告)日：2019-01-31

申请号：US16048165

申请日：2018-07-27

Applicant: Johnson Controls Technology Company

Inventor： Michael J. Wenzel ,  Mohammad N. Elbsat

IPC: F24F11/47 ,  F24F11/54 ,  F24F11/83

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.

公开(公告)号：US20190032943A1

公开(公告)日：2019-01-31

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 ,  G05B13/04 ,  G05B15/02

Abstract: Disclosed herein are a system, a method, and a non-transitory computer readable medium for operating an energy plant. In one aspect, the system 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：US10186889B2

公开(公告)日：2019-01-22

申请号：US15247886

申请日：2016-08-25

Applicant: Johnson Controls Technology Company

Inventor： Michael J. Wenzel ,  Kirk H. Drees ,  Mohammad N. ElBsat

IPC: H01M10/44 ,  H01M10/46 ,  H02J7/00 ,  H02J3/14 ,  H02J3/32 ,  H02J3/38 ,  H02S40/32 ,  H02J7/35 ,  H02J3/00 ,  H02J13/00

Abstract: A frequency response optimization system includes a battery configured to store and discharge electric power, a power inverter configured to control an amount of the electric power stored or discharged from the battery at each of a plurality of time steps during a frequency response period, and a frequency response controller. The frequency response controller is configured to receive a regulation signal from an incentive provider, determine statistics of the regulation signal, use the statistics of the regulation signal to generate an optimal frequency response midpoint that achieves a desired change in a state-of-charge (SOC) of the battery while participating in a frequency response program, and use the midpoints to determine optimal battery power setpoints for the power inverter. The power inverter is configured to use the optimal battery power setpoints to control the amount of the electric power stored or discharged from the battery.