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    HVAC COMPRESSOR PROGNOSTICS
    1.
    发明申请
    HVAC COMPRESSOR PROGNOSTICS 审中-公开
    暖通空调压缩机预制

    公开(公告)号：US20160290671A1

    公开(公告)日：2016-10-06

    申请号：US15088334

    申请日：2016-04-01

    Applicant: Trane International Inc.

    Inventor： Don A. Schuster ,  Thomas Reed ,  Chuan Yan

    IPC: F24F11/00 ,  F04C29/00 ,  F04B35/04 ,  F04C18/02 ,  F04C18/344

    CPC classification number: F04C29/0085 ,  F04B35/04 ,  F04C18/0215 ,  F04C18/344 ,  F25B49/022 ,  F25B49/025 ,  F25B2700/151 ,  F25B2700/171 ,  F25B2700/1931 ,  F25B2700/1933 ,  F25B2700/2106 ,  F25B2700/21151 ,  F25B2700/21152

    Abstract: Systems and methods for determining the health of a compressor are disclosed. In one embodiment, a prognostic-diagnostic unit (PDU) compares expected compressor power consumption, based on current operating conditions of the HVAC system, to actual compressor power consumption. If the actual power consumption is within a predefined range of the expected power consumption under current operational conditions, the HVAC system is determined to be operating properly. If the actual power consumption deviates from the expected power consumption, a fault is indicated. An appropriate action is taken, such as displaying a fault alert, transmitting a fault message to another device, and storing information relating to the fault for later retrieval to assist troubleshooting.

    Abstract translation: 公开了用于确定压缩机健康状况的系统和方法。 在一个实施例中，预测诊断单元（PDU）基于HVAC系统的当前操作条件将预期的压缩机功率消耗与实际的压缩机功率消耗进行比较。 如果实际功耗在当前操作条件下的预期功率消耗的预定范围内，则HVAC系统被确定为正常工作。 如果实际功耗偏离预期功耗，则会显示故障。 采取适当的措施，例如显示故障警报，向其他设备发送故障消息，并存储与故障相关的信息以供以后检索以辅助故障排除。

    Heat pump fault detection system
    4.
    发明授权
    Heat pump fault detection system 有权

    公开(公告)号：US12085295B2

    公开(公告)日：2024-09-10

    申请号：US17705849

    申请日：2022-03-28

    Applicant: Trane International Inc.

    Inventor： Don A. Schuster ,  Prabakaran Chezhian ,  Logenthiran Vazhmuni

    IPC: F24F11/32 ,  F24F11/84 ,  F24F11/86

    CPC classification number: F24F11/32 ,  F24F11/84 ,  F24F11/86 ,  F24F2203/02

    Abstract: Example embodiments of the present disclosure relate to a heat pump including a system or method for detecting a fault in the heat pump. Some embodiments include a method for detecting a switch over valve fault where the heat pump includes a refrigerant cycle, a compressor, a first heat exchanger, a second heat exchanger, and a switch over valve, and the method includes operating the HVAC system in one of a heating mode or a cooling mode, monitoring first, second, and third refrigerant parameters associated with the refrigerant circuit using first, second, and third refrigerant sensors, determining first and second refrigerant inputs based on the first, second, and third second refrigerant parameters, and determining a refrigerant circulation mode by comparing the first refrigerant input to the second refrigerant input to provide an indication of whether the refrigerant is circulating in the heating mode or the cooling mode.

    HVAC components having a variable speed drive with optimized power factor correction
    8.
    发明授权
    HVAC components having a variable speed drive with optimized power factor correction 有权

    公开(公告)号：US09973129B2

    公开(公告)日：2018-05-15

    申请号：US15180320

    申请日：2016-06-13

    Applicant: Trane International Inc.

    Inventor： Don A. Schuster ,  Chuan Yan

    IPC: H02P6/18 ,  H02P23/26

    CPC classification number: H02P23/26

    Abstract: A power factor optimized variable speed drive unit for an electric motor of an HVAC device is disclosed. In an embodiment, the unit includes a selectively-activatable power factor correction unit operatively associated with a switched mode power supply unit. A power measurement unit measures the input power of the electric motor. A comparator unit compares the motor input power to a predetermined threshold. The comparator unit activates the power factor correction unit when the input power of the electric motor is above the threshold, and deactivates the power factor correction unit when the input power of the electric motor falls below the threshold. In an embodiment, motor input power is determined by the product of motor load current and motor speed.

    HVAC COMPONENTS HAVING A VARIABLE SPEED DRIVE WITH OPTIMIZED POWER FACTOR CORRECTION
    9.
    发明申请
    HVAC COMPONENTS HAVING A VARIABLE SPEED DRIVE WITH OPTIMIZED POWER FACTOR CORRECTION 有权
    具有优化功率因数校正的变速驱动器的HVAC组件

    公开(公告)号：US20160365817A1

    公开(公告)日：2016-12-15

    申请号：US15180320

    申请日：2016-06-13

    Applicant: Trane International Inc.

    Inventor： Don A. Schuster ,  Chuan Yan

    IPC: H02P23/26

    CPC classification number: H02P23/26

    Abstract: A power factor optimized variable speed drive unit for an electric motor of an HVAC device is disclosed. In an embodiment, the unit includes a selectively-activatable power factor correction unit operatively associated with a switched mode power supply unit. A power measurement unit measures the input power of the electric motor. A comparator unit compares the motor input power to a predetermined threshold. The comparator unit activates the power factor correction unit when the input power of the electric motor is above the threshold, and deactivates the power factor correction unit when the input power of the electric motor falls below the threshold. In an embodiment, motor input power is determined by the product of motor load current and motor speed.

    Abstract translation: 公开了一种用于HVAC设备的电动机的功率因数优化变速驱动单元。 在一个实施例中，该单元包括与开关模式电源单元可操作地相关联的可选择性激活的功率因数校正单元。 功率测量单元测量电动机的输入功率。 比较器单元将电动机输入功率与预定阈值进行比较。 当电动机的输入功率高于阈值时，比较器单元激活功率因数校正单元，并且当电动机的输入功率低于阈值时，使功率因数校正单元停止。 在一个实施例中，电动机输入功率由电动机负载电流和电动机速度的乘积确定。

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