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公开(公告)号：US11408626B2
公开(公告)日：2022-08-09
申请号：US16737579
申请日：2020-01-08
IPC分类号： F24F11/46 , F24F11/64 , F24F11/65 , G05B15/02 , F24F140/60 , F24F140/50 , H04L12/28
摘要： A controller for a plurality of heating, ventilation, or air conditioning (HVAC) devices includes a processing circuit that includes one or more processors and memory. The controller detects a change in condition that affects an operating status of a first HVAC device of the plurality of HVAC devices. The controller uses schematic relationships between the plurality of HVAC devices to determine a reduced subset of the plurality of HVAC devices for which operating parameters are to be generated based on the operating status of the first HVAC device. The controller generates operating parameters for the reduced subset of the plurality of HVAC devices and operates the plurality of HVAC devices using the operating parameters.
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公开(公告)号：US11175062B2
公开(公告)日：2021-11-16
申请号：US16709070
申请日：2019-12-10
发明人： Graeme Willmott , Matthew J. Asmus
IPC分类号： G05B13/02 , F24F11/63 , G05B15/02 , F24F140/00 , F24F140/12 , F24F11/46
摘要： A controller for an energy plant includes a processing circuit having a processor and memory which stores instructions executed by the processor. The processing circuit is configured to identify, from a plurality of thermodynamic states affected by a plurality of heat, ventilation, and air conditioning (HVAC) devices, a reduced subset of the plurality of thermodynamic states to be predicted based on connections between the plurality of HVAC devices. The processing circuit is configured to predict values of the reduced subset of the plurality of thermodynamic states and operate the plurality of HVAC devices based on the predicted values of the reduced subset of the plurality of thermodynamic states.
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公开(公告)号：US20210215376A1
公开(公告)日：2021-07-15
申请号：US17219196
申请日：2021-03-31
发明人： Graeme Willmott , Matthew J. Asmus
摘要： Disclosed herein are related to a system, a method, and a non-transitory computer readable storing instructions for operating an energy plant comprised of heating, ventilation and air conditioning (HVAC) devices. In one aspect, the system generates gradient data indicating a gradient of operating performance of the energy plant with respect to values of a plurality of control variables of HVAC devices. The system determines, from the plurality of control variables, a reduced group of control variables of the HVAC devices based on the gradient data. The system determines a set of values of the reduced group of control variables. The system operates the energy plant according to the determined set of values of the reduced group of control variables.
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公开(公告)号：US10900686B2
公开(公告)日：2021-01-26
申请号：US16048092
申请日：2018-07-27
发明人： Graeme Willmott , John H. Burroughs , Mohammad N. ElBsat , Michael J. Wenzel , Matthew J. Asmus
IPC分类号： F24F11/46 , G05B15/02 , G05B13/04 , F24F11/64 , F24F11/65 , F24F11/62 , F24F11/30 , F24F140/50 , F24F140/00
摘要： 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.
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公开(公告)号：US11099532B2
公开(公告)日：2021-08-24
申请号：US16450701
申请日：2019-06-24
发明人： Steven R. Vitullo , Graeme Willmott
摘要： Predictor variables that affect production or consumption of a resource are sampled at a plurality of times within a time period and aggregated to generate an aggregated value for each predictor variable over the time period. A model is generated which estimates the production or consumption in terms of the predictor variables. A regression process is performed to generate values for a plurality of regression coefficients in the model based on a cumulative production or consumption of the resource for the time period and the aggregated values. The sampled values of the predictor variables are then applied as inputs to the model to estimate productions or consumptions of the resource at each of the plurality of times. The estimated productions or consumptions may be used as inputs to a controller that operates equipment.
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公开(公告)号：US20200379418A1
公开(公告)日：2020-12-03
申请号：US16428662
申请日：2019-05-31
摘要： A control system for a central plant having devices serving energy loads of a building. The control system includes a central plant optimizer wizard generator that receives user input and generates a central plant model for the control system. The central plant optimizer wizard generator includes an equipment model generator that receives user input and generates equipment models for the devices in the central plant, a device layer generator that generates device layers, an asset layer generator that generates asset layers, and a scaled load profile generator that generates a scaled building load profile of the building using the asset layers and the user data. The central plant optimizer wizard generator generates the central plant model using the asset layers and the scaled building load profile. A demand response optimizer uses the central plant model to determine control decisions for the devices included in the central plant.
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公开(公告)号：US10824125B2
公开(公告)日：2020-11-03
申请号：US16048162
申请日：2018-07-27
IPC分类号： G05B13/04 , G05F1/66 , G05B19/04 , F24F11/46 , G05B19/042 , F24F110/10 , F24F140/50
摘要： 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：US20200341434A1
公开(公告)日：2020-10-29
申请号：US16394810
申请日：2019-04-25
摘要： Disclosed herein are related to a system, a method, and a non-transitory computer readable medium for operating an energy plant having a plurality of subplants that operate to produce one or more resources consumed by a building based on ranks. In one aspect, the system obtains rank identifiers indicating ranks of the plurality of subplants. In one aspect, the ranks indicate a priority of each subplant with respect to production of a resource relative to other subplants that produce the resource. In one aspect, the system determines resource allocation of the plurality of subplants according to the ranks of the plurality of subplants. The system may operate the plurality of subplants according to the resource allocation.
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公开(公告)号：US20190323718A1
公开(公告)日：2019-10-24
申请号：US16389731
申请日：2019-04-19
IPC分类号： F24F11/38 , G05B19/042 , F24F11/64 , F24F11/65
摘要： Disclosed herein are related to a method, a system, and a non-transitory computer readable medium storing instructions for operating a group of central plant equipment to serve thermal energy loads of a building or building system. In one approach, a base capacity of one or more devices of the group of central plant equipment is identified. A change in requested load allocated to the one or more devices crossing the base capacity at a crossover time may be detected. In one approach, an adjusted capacity of the one or more devices is set such that the adjusted capacity is offset from the base capacity before the crossover time and decays toward the base capacity during a decay period after the crossover time. The requested load allocated may be compared with the adjusted capacity after the crossover time. The group of central plant equipment may be operated according to the comparison.
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公开(公告)号：US20190011145A1
公开(公告)日：2019-01-10
申请号：US16027132
申请日：2018-07-03
发明人： Graeme Willmott , Matthew J. Asmus
CPC分类号： F24F11/63 , F24F11/46 , F24F2140/00 , F24F2140/12 , G05B13/026 , G05B15/02 , G05B2219/2642
摘要： Systems and methods for predicting a plurality of thermodynamic states of a plurality of heat, ventilation, and air conditioning (HVAC) devices of an energy plant are disclosed. The system includes a processor and a non-transitory computer readable medium storing instructions when executed causing the processor to: obtain plant netlist data describing the plurality of HVAC devices of the energy plant and connections of the plurality of HVAC devices to corresponding nodes; identify, from the plurality of thermodynamic states of the energy plant at a plurality of nodes, a reduced subset of the plurality of thermodynamic states to be predicted based on the connections of the plurality of HVAC devices; predict the reduced subset of the plurality of thermodynamic states using a non-linear solver; and determine the plurality of thermodynamic states of the energy plant based on the reduced subset of the predicted thermodynamic states.
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