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1. 发明授权

US10746448B2 Controls and operation of variable frequency drives 有权
公开(公告)号：US10746448B2
公开(公告)日：2020-08-18
申请号：US15495269
申请日：2017-04-24
申请人： TRANE INTERNATIONAL INC.
发明人： Benjamin James Sykora , Nathan Thomas West , David Marshall Foye , Dennis Myron Beekman , Korwin Jay Anderson , Robert Bakkestuen
IPC分类号： F25B49/02 , F04C28/28 , F04C18/16 , F25B31/02 , F04C18/02 , F04C28/04 , F04C28/08 , F04C29/00 , G05D23/00 , F25B1/00
摘要： A system includes a refrigerant compressor, an electric motor and configured to drive the refrigerant compressor, and a controller. The controller is configured to operate the compressor in a liquid clearing start mode where electrical current through the motor is prevented from exceeding a predetermined current limit for a period of time not to exceed a predetermined period of time, and is configured to operate the compressor in a run mode in response to determining the motor exceeds a predetermined speed threshold at or before expiration of the predetermined period of time, wherein the run mode does not prevent electrical current through the motor from exceeding said predetermined current limit.

2. 发明授权

US09605886B2 Axial thrust control for rotary compressors 有权
公开(公告)号：US09605886B2
公开(公告)日：2017-03-28
申请号：US14168346
申请日：2014-01-30
申请人： Trane International Inc.
发明人： Nathan Thomas West , Dennis Myron Beekman , David Marshall Foye , Korwin Jay Anderson , Benjamin James Sykora
IPC分类号： F04B49/06 , F25B49/02 , F04D27/00 , F25B1/04 , F04D27/02
CPC分类号： F25B49/022 , F04B49/065 , F04B49/20 , F04C18/0215 , F04C28/06 , F04C28/08 , F04D27/0261 , F25B1/04 , F25B2600/021 , F25B2700/1931 , F25B2700/1933 , F25B2700/21151 , F25B2700/21152 , Y02B30/741
摘要： Systems and methods are used to control operation of a rotary compressor of a refrigeration system to limit or prevent movement of rotors due to axial thrust loading resulting from rapid changes in speed of the rotors of the compressor. The operational profile of the motor is controlled to maintain acceleration torque and deceleration torque within predefined limits. The acceleration torque and deceleration torque are maintained within the predefined limits by controlling the speed of the motor, or by controlling the torque applied by the motor to the rotors during acceleration or deceleration.

3. 发明申请

US20150330693A1 MULTIPLE LOAD CONTROL FOR VARIABLE FREQUENCY DRIVE HARMONIC MITIGATION 审中-公开
标题翻译：用于变频驱动谐波缓解的多载荷控制
公开(公告)号：US20150330693A1
公开(公告)日：2015-11-19
申请号：US14813348
申请日：2015-07-30
申请人： Trane International Inc.
发明人： Benjamin James Sykora , Nathan Thomas West , David Marshall Foye
IPC分类号： F25B49/02
摘要： Apparatuses, methods, and systems of multiple load control for variable frequency drive harmonic mitigation are disclosed. An exemplary embodiment includes a system including a plurality of loads including at least one compressor configured to compress refrigerant. The plurality of loads are driven by a plurality of electric motors. The plurality of electric motors are driven by a plurality of variable frequency drives. The plurality of variable frequency drives are electrically coupled to an AC source. In operation a desired cooling capacity of the system is determined, a harmonic mitigation control parameter is determined, and output of one or more of the variable frequency drives is activated, deactivated, adjusted or modulated to reduce the input harmonics and provide the desired cooling capacity.
摘要翻译：公开了用于变频驱动谐波抑制的多重负载控制的装置，方法和系统。示例性实施例包括包括多个负载的系统，所述负载包括构造成压缩制冷剂的至少一个压缩机。多个负载由多个电动机驱动。多个电动机由多个变频驱动器驱动。多个可变频率驱动器电耦合到AC电源。在操作中，确定系统的期望的冷却能力，确定谐波缓解控制参数，并且激活，去激活，调节或调制一个或多个变频驱动器的输出，以减少输入谐波并提供所需的制冷量。

4. 发明授权

US10240839B2 Apparatuses, systems, and methods of variable frequency drive operation and control 有权
公开(公告)号：US10240839B2
公开(公告)日：2019-03-26
申请号：US14849866
申请日：2015-09-10
申请人： TRANE INTERNATIONAL INC.
发明人： Benjamin James Sykora , Nathan Thomas West , Pavak Mehta
IPC分类号： F25B49/02 , F25B13/00 , F25B31/00
摘要： An exemplary system includes a compressor, a condenser, an expander, and an evaporator fluidly coupled to form a vapor-compression circuit, and an electric motor configured to drive the compressor. An inverter having a plurality of switching elements is configured to provide an output voltage to the electric motor through operation of the switching elements. A waste heat recovery circuit is configured to transfer waste heat from the inverter to a load. A controller is configured provide switching commands to the switching elements of the inverter. The controller is further configured to sense a condition of the system, determine a heat production requirement based at least in part upon the system condition, and to vary the number of switching commands per unit time based at least in part upon the heat production requirement.

5. 发明授权

US09939795B2 Dynamic simulated motor for controller testing 有权
公开(公告)号：US09939795B2
公开(公告)日：2018-04-10
申请号：US14162924
申请日：2014-01-24
申请人： TRANE INTERNATIONAL INC.
发明人： Korwin Jay Anderson , Nathan Thomas West
IPC分类号： G05B17/02 , G05B23/02
CPC分类号： G05B17/02 , G05B23/0205
摘要： A controller is configured to generate control signals to control a variable frequency drive coupled with a load. A simulator receives the control signals and processes the control signals. The simulator simulates a variable frequency drive and a load by generating feedback signals based on a model and the control signals. The controller receives the feedback signals from the simulator.

6. 发明授权

US09647591B2 Magnet degradation and damage controls and diagnostics for permanent magnet motors 有权
公开(公告)号：US09647591B2
公开(公告)日：2017-05-09
申请号：US14751481
申请日：2015-06-26
申请人： Trane International Inc.
发明人： Nathan Thomas West , David Marshall Foye
IPC分类号： H02H7/08 , H02P21/14 , G01R31/34 , H02P29/00
CPC分类号： H02P6/14 , G01R31/34 , G01R31/343 , H02P21/14 , H02P21/141 , H02P29/024 , H02P29/60 , H02P29/662
摘要： Techniques for motor magnet degradation controls and diagnostics are disclosed. An exemplary technique determines q-axis current, d-axis current, q-axis voltage, and/or d-axis voltage of a permanent magnet motor based upon sensed current and voltage information of the motor. This information is utilized to determine flux information. The flux information is utilized in evaluating collective state conditions of a plurality of motor magnets and evaluating localized state conditions of a subset of the plurality of motor magnets. The evaluations can be used to identify degradation or damage to one or more of the magnets which may occur as a result of elevated temperature conditions, physical degradation, or chemical degradation.

7. 发明授权

US09568208B2 HVAC electrical system power supply packaging system 有权
标题翻译： HVAC电力系统电源包装系统
公开(公告)号：US09568208B2
公开(公告)日：2017-02-14
申请号：US14681750
申请日：2013-10-08
申请人： TRANE INTERNATIONAL INC.
发明人： Nathan Thomas West , David Marshall Foye , William James Walters
IPC分类号： F25B49/02 , F24F11/02 , F24F11/00
CPC分类号： F24F11/02 , F24F11/0009 , F24F11/30 , F24F11/89 , F25B49/025 , F25B2600/0253
摘要： Embodiments of a HVAC electrical system power supply packaging system within an ultimate enclosure are provided. The HVAC electrical system power supply packaging system provides serviceability, safety, manufacturability, and system management failure diagnostic reporting enhancements over conventional packaging systems while conforming to agency safety requirements. The embodiments disclosed herein also reduce equipment and service costs for HVAC electrical system power supply components provided within the HVAC electrical system power supply packaging system by reducing delays in servicing these components. Thus, customer uptime of the HVAC system can be increased.
摘要翻译：提供了在最终外壳内的HVAC电气系统电源封装系统的实施例。 HVAC电气系统电源包装系统在符合机构安全要求的同时，提供超过常规包装系统的可维护性，安全性，可制造性和系统管理故障诊断报告增强功能。本文公开的实施例还通过减少维修这些部件的延迟来降低在HVAC电气系统电源包装系统内提供的HVAC电力系统供电部件的设备和服务成本。因此，可以增加HVAC系统的客户正常运行时间。

8. 发明申请

US20150327399A1 VARIABLE FREQUENCY DRIVE OPERATION TO AVOID OVERHEATING 审中-公开
标题翻译：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。

9. 发明授权

US10003287B2 Magnet degradation and damage controls and diagnostics for permanent magnet motors 有权
公开(公告)号：US10003287B2
公开(公告)日：2018-06-19
申请号：US15450999
申请日：2017-03-06
申请人： Trane International Inc.
发明人： Nathan Thomas West , David Marshall Foye
IPC分类号： H02P6/14 , H02P29/66 , H02P29/024 , H02P21/14 , G01R31/34
CPC分类号： H02P6/14 , G01R31/34 , G01R31/343 , H02P21/14 , H02P21/141 , H02P29/024 , H02P29/0241 , H02P29/60 , H02P29/662
摘要： Techniques for motor magnet degradation controls and diagnostics are disclosed. An exemplary technique determines q-axis current, d-axis current, q-axis voltage, and/or d-axis voltage of a permanent magnet motor based upon sensed current and voltage information of the motor. This information is utilized to determine flux information. The flux information is utilized in evaluating collective state conditions of a plurality of motor magnets and evaluating localized state conditions of a subset of the plurality of motor magnets. The evaluations can be used to identify degradation or damage to one or more of the magnets which may occur as a result of elevated temperature conditions, physical degradation, or chemical degradation.

10. 发明授权

US09654049B2 Variable frequency drive active harmonic mitigation controls and diagnostics 有权
公开(公告)号：US09654049B2
公开(公告)日：2017-05-16
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： G05B11/01 , H02P29/50 , 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.

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