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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
Applicant: Johnson Controls Technology Company
Inventor： Graeme Willmott , Matthew J. Asmus , Jared W. Fread , Ryan C. Beaty , Shawn A. Schlagenhaft
IPC: F24F11/38 , G05B19/042 , F24F11/64 , F24F11/65
Abstract: 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
Applicant: Johnson Controls Technology Company
Inventor： Graeme Willmott , Matthew J. Asmus
CPC classification number: F24F11/63 , F24F11/46 , F24F2140/00 , F24F2140/12 , G05B13/026 , G05B15/02 , G05B2219/2642
Abstract: 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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13.发明申请公开(公告)号：US20180356770A1
公开(公告)日：2018-12-13
申请号：US15974411
申请日：2018-05-08
Applicant: Johnson Controls Technology Company
Inventor： Mohammad N. ElBsat , Michael J. Wenzel , Matthew J. Asmus , James P. Kummer , Peter A. Craig , Robert D. Turney
IPC: G05B13/02
Abstract: An energy optimization system for a building includes a processing circuit configured to provide a first bid including one or more first participation hours and a first load reduction amount for each of the one or more first participation hours to a computing system. The processing circuit is configured to operate one or more pieces of building equipment based on one or more first equipment loads and receive one or more awarded or rejected participation hours from the computing system responsive to the first bid. The processing circuit is configured to 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 based on the one or more awarded or rejected participation hours and operate the one or more pieces of building equipment based on the one or more second equipment loads.
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公开(公告)号：US09982903B1
公开(公告)日：2018-05-29
申请号：US15411878
申请日：2017-01-20
Applicant: Johnson Controls Technology Company
Inventor： Bradley J. Ridder , Graeme Willmott , Matthew J. Asmus
CPC classification number: F24F11/0001 , F24F11/30 , F24F11/46 , F24F11/62 , F24F11/70 , F24F2011/0002 , F24F2110/10 , F24F2110/12 , F24F2140/60 , G01W1/10
Abstract: A heating, ventilation, or air conditioning (HVAC) system for a building includes, a chiller, a heat exchanger separate from the chiller, and a controller. The chiller is configured to provide mechanical cooling for a cooling load in the building when the HVAC system operates in a mechanical cooling state. The heat exchanger is configured to provide free cooling for the cooling load in the building when the HVAC system operates in a free cooling state. The controller is configured to predict outside air temperature and transition the HVAC system from operating in the mechanical cooling state to operating in the free cooling state in response to a determination that the predicted outside air temperature will be less than the free cooling temperature threshold for at least the minimum free cooling time.
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公开(公告)号：US09612601B2
公开(公告)日：2017-04-04
申请号：US14599306
申请日：2015-01-16
Applicant: Johnson Controls Technology Company
Inventor： Saman Beyhaghi , Matthew J. Asmus , Justin P. Kauffman
CPC classification number: G05D23/1917 , G05B15/02 , G05B2219/2614 , G05D23/1934
Abstract: An adaptive capacity constraint management system receives a measured value affected by HVAC equipment at actual operating conditions and uses the measured value to determine an operating value for a variable that affects a capacity of the HVAC equipment at the actual operating condition. The system uses the operating value to calculate a gain factor for the variable relative to design conditions and uses the calculated gain factor to determine a capacity gain for the HVAC equipment relative to the design conditions. The system applies the capacity gain to a design capacity limit for the HVAC equipment to determine a new capacity limit for the HVAC equipment at the actual operating conditions. The system may use the new capacity limit as a constraint in an optimization routine that that selects one or more devices of the HVAC equipment to satisfy a load setpoint.
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Patent Agency Ranking
公开(公告)号：US09568204B2
公开(公告)日：2017-02-14
申请号：US13756229
申请日：2013-01-31
Applicant: Johnson Controls Technology Company
Inventor： Matthew J. Asmus , Robert D. Turney , Justin J. Seifi
CPC classification number: F24F11/001 , F24F11/30 , F24F2110/00 , F24F2130/40 , G01D3/021 , G01D3/08
Abstract: A method for detecting and responding to disturbances in a HVAC system using a noisy measurement signal and a signal filter is provided. The method includes detecting a deviation in the noisy measurement signal, resetting the filter in response to a detected deviation exceeding a noise threshold, filtering the noisy measurement signal using the signal filter to determine an estimated state value, and determining that a disturbance has occurred in response to the estimated state value crossing a disturbance threshold. In some embodiments, the method further includes performing one or more control actions in response to the detection of a disturbance.
Abstract translation: 提供一种使用噪声测量信号和信号滤波器来检测和响应HVAC系统中的干扰的方法。 该方法包括检测噪声测量信号中的偏差，响应于超过噪声阈值的检测偏差来重置滤波器，使用信号滤波器对噪声测量信号进行滤波，以确定估计状态值，并确定发生干扰 响应于估计的状态值跨越扰动阈值。 在一些实施例中，该方法还包括响应于干扰的检测而执行一个或多个控制动作。
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公开(公告)号：US20150316903A1
公开(公告)日：2015-11-05
申请号：US14634615
申请日：2015-02-27
Applicant: Johnson Controls Technology Company
Inventor： Matthew J. Asmus , Robert D. Turney
CPC classification number: G05B19/418 , G05B13/021 , G05B13/048 , G05B15/02 , G05B2219/2642 , G05B2219/31414 , G05B2219/32021 , G05F1/66 , G06N99/005 , G06Q10/04 , G06Q10/06 , G06Q50/06 , Y02P70/161 , Y02P80/114 , Y02P90/86
Abstract: Systems and methods for low level central plant optimization are provided. A controller for the central plant uses binary optimization to determine one or more feasible on/off configurations for equipment of the central plant that satisfy operating constraints and meet a thermal energy load setpoint. The controller determines optimum operating setpoints for each feasible on/off configuration and generates operating parameters including at least one of the feasible on/off configurations and the optimum operating setpoints. The operating parameters optimize an amount of energy consumed by the central plant equipment. The controller outputs the generated operating parameters via a communications interface for use in controlling the central plant equipment.
Abstract translation: 提供了低级中央工厂优化的系统和方法。 中央设备的控制器使用二进制优化来确定满足操作约束并满足热能负荷设定点的中央设备设备的一个或多个可行的开/关配置。 控制器为每个可行的开启/关闭配置确定最佳操作设定点，并且生成包括可行的开/关配置和最佳操作设定点中的至少一个的操作参数。 操作参数优化了中央设备设备消耗的能量。 控制器通过通信接口输出生成的操作参数，用于控制中央设备设备。
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公开(公告)号：US20140214214A1
公开(公告)日：2014-07-31
申请号：US13756229
申请日：2013-01-31
Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY
Inventor： Matthew J. Asmus , Robert D. Turney , Justin J. Seifi
CPC classification number: F24F11/001 , F24F11/30 , F24F2110/00 , F24F2130/40 , G01D3/021 , G01D3/08
Abstract: A method for detecting and responding to disturbances in a HVAC system using a noisy measurement signal and a signal filter is provided. The method includes detecting a deviation in the noisy measurement signal, resetting the filter in response to a detected deviation exceeding a noise threshold, filtering the noisy measurement signal using the signal filter to determine an estimated state value, and determining that a disturbance has occurred in response to the estimated state value crossing a disturbance threshold. In some embodiments, the method further includes performing one or more control actions in response to the detection of a disturbance.
Abstract translation: 提供一种使用噪声测量信号和信号滤波器来检测和响应HVAC系统中的干扰的方法。 该方法包括检测噪声测量信号中的偏差，响应于超过噪声阈值的检测偏差来重置滤波器，使用信号滤波器对噪声测量信号进行滤波，以确定估计状态值，并确定发生干扰 响应于估计的状态值跨越扰动阈值。 在一些实施例中，该方法还包括响应于干扰的检测而执行一个或多个控制动作。
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公开(公告)号：US11867419B2
公开(公告)日：2024-01-09
申请号：US17334235
申请日：2021-05-28
Applicant: Johnson Controls Technology Company
Inventor： Matthew J. Asmus , Maxwell J. Neuman
IPC: F24F11/54 , F24F11/56 , H04L67/125 , F24F11/74 , F24F11/52
CPC classification number: F24F11/54 , F24F11/52 , F24F11/56 , F24F11/74 , H04L67/125
Abstract: A controller for a plurality of interconnected devices in a system is shown. The controller includes a processing circuit configured to detect that a first device of the plurality of interconnected devices is unavailable and identify a second device of the plurality of interconnected devices schematically dependent upon the first device by conducting a graph theory analysis on schematic relationships indicating connections among the plurality of interconnected devices. The processing circuit is further configured to, in response to identifying the second device schematically dependent upon the first device, generate a reduced subset of the plurality of interconnected devices that excludes the second device. The processing circuit is further configured to operate the reduced subset to transfer one or more resources among the reduced subset via the connections.
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公开(公告)号：US11221156B2
公开(公告)日：2022-01-11
申请号：US16389731
申请日：2019-04-19
Applicant: Johnson Controls Technology Company
Inventor： Graeme Willmott , Matthew J. Asmus , Jared W. Fread , Ryan C. Beaty , Shawn A. Schlagenhaft
IPC: G05B21/00 , G01M1/38 , G05B13/00 , G05B15/00 , G05D23/00 , F24F11/38 , G05B19/042 , F24F11/64 , F24F11/65 , F24F140/60 , F24F140/00
Abstract: 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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