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    VARIABLE FREQUENCY DRIVE OPERATION TO AVOID OVERHEATING
    4.
    发明申请
    VARIABLE FREQUENCY DRIVE OPERATION TO AVOID OVERHEATING 审中-公开
    可变频率驱动操作避免过热

    公开(公告)号：US20150327399A1

    公开(公告)日：2015-11-12

    申请号：US14802294

    申请日：2015-07-17

    申请人： Trane International Inc.

    发明人： Nathan Thomas West ,  Benjamin James Sykora ,  David Marshall Foye ,  Korwin Jay Anderson

    IPC分类号： H05K7/20

    CPC分类号： H05K7/20254 ,  H01L23/427 ,  H01L2924/0002 ,  H02P27/04 ,  H02P29/60 ,  H05K7/20945 ,  H01L2924/00

    摘要： Operation of a variable frequency in a manner configured to avoid overheating is provided. In one form, a method includes providing a variable frequency drive that includes a switching device in thermal communication with a heat sink including a thermal mass. The method further includes operating the drive in a first mode before active cooling of the heat sink is established and a second mode following the first mode. Operation of the drive in the first mode includes operating the switching device in a first switching frequency mode, and the first switching frequency mode and the thermal mass of the heat sink are selected to provide a temperature of the switching device below a predetermined threshold before active cooling of the heat sink is established. Further embodiments, forms, features, and aspects shall become apparent from the description and drawings.

    摘要翻译： 提供以避免过热的方式操作可变频率。 在一种形式中，一种方法包括提供包括与包括热质量的散热器热连通的开关装置的变频驱动器。 该方法还包括在建立散热器的主动冷却之前以第一模式操作驱动器，以及在第一模式之后的第二模式。 在第一模式中的驱动器的操作包括以第一开关频率模式操作开关装置，并且选择散热器的第一开关频率模式和热质量以在开关之前将开关装置的温度提高到预定阈值以下 确定了散热器的冷却。 从描述和附图，其他实施例，形式，特征和方面将变得显而易见。

    Assymetrical power inverter
    5.
    发明授权
    Assymetrical power inverter 有权
    对称功率变频器

    公开(公告)号：US09093942B2

    公开(公告)日：2015-07-28

    申请号：US13938595

    申请日：2013-07-10

    申请人： Trane International Inc.

    发明人： Korwin Jay Anderson ,  Thomas Anthony Lipo

    IPC分类号： H02P1/30 ,  H02P27/06 ,  H02K15/00 ,  H02P1/44

    CPC分类号： H02P27/06 ,  H02K15/0006 ,  H02P1/44 ,  Y10T29/49009

    摘要： An exemplary inverter includes first, second and third legs connected in parallel to a line rail and a neutral rail. Each leg includes a first switch, a second switch, and a node between the first and second switches. The first leg further includes a voltage boosting section operable to selectively increase and decrease the voltage potential of the node of the first leg. The voltage boosting section may include a capacitor in parallel with the first and second switches. The first leg may further include a third switch in series with the voltage boosting section and between the voltage boosting section and the line rail, and a fourth switch in series with the voltage boosting section and between the voltage boosting section and the neutral rail.

    摘要翻译： 示例性逆变器包括平行于线轨和中性轨道连接的第一，第二和第三腿。 每条腿包括第一开关，第二开关和第一和第二开关之间的节点。 第一支路还包括升压部分，其可操作以选择性地增加和减小第一支路节点的电压电位。 升压部分可以包括与第一和第二开关并联的电容器。 第一支路还可以包括与升压部分和升压部分和线路轨道之间串联的第三开关，以及与升压部分以及升压部分和中性线路串联的第四开关。

    VARIABLE FREQUENCY DRIVE SELF-CHECK
    7.
    发明申请
    VARIABLE FREQUENCY DRIVE SELF-CHECK 有权
    可变频率自动检测

    公开(公告)号：US20160056750A1

    公开(公告)日：2016-02-25

    申请号：US14791858

    申请日：2015-07-06

    申请人： Trane International Inc.

    发明人： Nathan Thomas West ,  Benjamin James Sykora ,  Korwin Jay Anderson ,  Matthew August Shepeck ,  David Marshall Foye

    IPC分类号： H02P29/02

    CPC分类号： H02P29/024 ,  G01R31/025 ,  G01R31/026 ,  G01R31/42 ,  H02M1/32 ,  H02M1/36 ,  H02M5/458 ,  H02M7/53871 ,  H02P1/022 ,  H02P29/0241

    摘要： Diagnostic and/or control methods, systems and apparatuses for variable frequency drives are disclosed. The variable frequency drive may be controlled by a controller that may conduct one or more tests or evaluations. The tests or evaluations may include determining whether a switching device in the variable frequency drive is open-circuited, short-circuited, or operating normally. The tests may include determining whether current provided at an inverter output of the variable frequency drive is within a predetermined range. An exemplary embodiment evaluates the drive for a short circuit condition, an open circuit condition, and a sensor error or failure condition, controls operation of the drive based upon these one or more evaluations, may abort operation of the drive based upon one or more evaluations, and may set a fault code indicative of the type of error encountered.

    摘要翻译： 公开了用于变频驱动器的诊断和/或控制方法，系统和装置。 变频驱动器可以由可执行一个或多个测试或评估的控制器来控制。 测试或评估可以包括确定变频驱动器中的开关装置是否断路，短路或正常工作。 测试可以包括确定提供在变频驱动器的逆变器输出处的电流是否在预定范围内。 一个示例性实施例评估用于短路状态，开路状况和传感器错误或故障状况的驱动器，基于这些一个或多个评估来控制驱动器的操作，可以基于一个或多个评估中止驱动器的操作 ，并且可以设置指示遇到的错误类型的故障代码。

    VARIABLE FREQUENCY DRIVE ACTIVE HARMONIC MITIGATION CONTROLS AND DIAGNOSTICS
    9.
    发明申请
    VARIABLE FREQUENCY DRIVE ACTIVE HARMONIC MITIGATION CONTROLS AND DIAGNOSTICS 有权
    可变频率驱动主动谐波抑制控制和诊断

    公开(公告)号：US20150333668A1

    公开(公告)日：2015-11-19

    申请号：US14806055

    申请日：2015-07-22

    申请人： Trane International Inc.

    发明人： Nathan Thomas West ,  Benjamin James Sykora ,  David Marshall Foye ,  Korwin Jay Anderson ,  William James Walters

    IPC分类号： H02P6/00

    CPC分类号： H02P29/50 ,  H02P6/10 ,  H02P6/28

    摘要： Variable frequency drive active harmonic mitigation controls and diagnostics are disclosed. Exemplary controls and diagnostics include operating a variable frequency drive including converting an AC input line voltage to a DC voltage, generating a motor drive signal using the DC voltage, and driving an electric motor with the motor drive signal. A harmonic mitigation signal is provided to the drive configured to at least partially mitigate harmonics during the operation of the drive. The harmonic mitigation signal is inhibited based upon presence of an error condition associated with the drive input. The inhibiting is terminated based upon the absence of the error condition. A diagnostic fault condition based upon a number of occurrences of the error condition.

    摘要翻译： 公开了变频驱动主动谐波抑制控制和诊断。 示例性控制和诊断包括操作变频驱动器，包括将AC输入线路电压转换为DC电压，使用DC电压产生电动机驱动信号，以及利用电动机驱动信号驱动电动机。 向驱动器提供谐波抑制信号，该驱动器被配置为在驱动器的操作期间至少部分地减轻谐波。 基于与驱动输入相关联的错误状况的存在来抑制谐波抑制信号。 基于不存在错误条件而终止禁止。 基于出现错误条件的次数的诊断故障状况。