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31.发明授权公开(公告)号：US11652421B2
公开(公告)日：2023-05-16
申请号：US17701543
申请日：2022-03-22
Applicant: Rockwell Automation Technologies, Inc.
Inventor： Gary L. Skibinski , Zhijun Liu
CPC classification number: H02M5/458 , H02P23/00 , H03H7/06 , H02P2201/01
Abstract: A line interface filter apparatus to couple a drive or group of drives to a shared multiphase AC bus, including individual phase circuits having an inductor coupled between a respective bus and drive phase lines, a tapped resistor coupled to the respective drive phase line, and a capacitor coupled between the resistor and a common connection of the capacitors of the individual phase circuits, where the capacitance of the capacitors is 5 to 15 times a per-phase equivalent capacitance of the drive or group of drives, and the resistance of the resistors is two times a damping ratio times a square root of a ratio of the filter inductance to the filter capacitance, where the damping ratio ζ is greater than or equal to 1.0 and less than or equal to 2.0.
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公开(公告)号：US08970158B1
公开(公告)日：2015-03-03
申请号：US13432773
申请日：2012-03-28
Applicant: Louis David Chowning
Inventor： Louis David Chowning
CPC classification number: H02P23/14 , F25B9/14 , F25B2309/1428 , H02P23/0004 , H02P27/16 , H02P2201/01
Abstract: In one embodiment, a cryocooler drive circuit for a cryocooler motor is provided that includes: a first switching power converter configured to track a first sinusoidal input voltage signal to provide a first sinusoidal output voltage signal at a first output node; and a second switching power converter configured to track a second sinusoidal input voltage signal to provide a second sinusoidal output voltage signal at a second output node, wherein the second sinusoidal input voltage signal is an inverted version of the first sinusoidal input voltage signal such that the cryocooler motor is driven by an alternating current flowing between the first and second output nodes.
Abstract translation: 在一个实施例中，提供了一种用于低温冷却器电动机的低温冷却器驱动电路，其包括：第一开关功率转换器，被配置为跟踪第一正弦输入电压信号以在第一输出节点处提供第一正弦输出电压信号; 以及第二开关功率转换器，被配置为跟踪第二正弦输入电压信号以在第二输出节点处提供第二正弦输出电压信号，其中所述第二正弦输入电压信号是所述第一正弦输入电压信号的反相形式， 低温冷却电机由在第一和第二输出节点之间流动的交流电驱动。
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公开(公告)号：US20140319838A1
公开(公告)日：2014-10-30
申请号：US13871309
申请日：2013-04-26
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Robert Gregory Wagoner , Cornelius Edward Holliday
IPC: F03D7/02
CPC classification number: F03D7/0276 , F03D7/0272 , F03D7/028 , F05B2270/337 , H02J3/386 , H02P9/007 , H02P2201/01 , H02P2207/073 , Y02E10/723 , Y02E10/763
Abstract: A method for operating a power generation system that supplies power for application to a load is disclosed. The method may generally include receiving, at a power converter, an alternating current power generated by a generator operating at a speed that is substantially equal to its synchronous speed and converting, with the power converter, the alternating current power to an output power, wherein the power converter includes at least one switching element. In addition, the method may include receiving a control command to control a switching frequency of the at least one switching element and adjusting the switching frequency to an adjusted switching frequency that is substantially equal to a fundamental frequency of the load.
Abstract translation: 公开了一种用于操作向负载施加电力的发电系统的方法。 该方法通常可以包括在功率转换器处接收由发电机产生的交流电力，该发电机以基本上等于其同步速度的速度运行，并且利用功率转换器将交流电力转换为输出功率，其中 功率转换器包括至少一个开关元件。 此外，该方法可以包括接收用于控制至少一个开关元件的开关频率并将开关频率调整到基本上等于负载的基频的调节开关频率的控制命令。
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公开(公告)号：US08816625B2
公开(公告)日：2014-08-26
申请号：US13282898
申请日：2011-10-27
Applicant: Jeremiah Kopiness , Raymond G. Sladky , Ahmed Mohamed sayed ahmed
Inventor： Jeremiah Kopiness , Raymond G. Sladky , Ahmed Mohamed sayed ahmed
CPC classification number: H03K17/164 , H02M1/36 , H02M5/4585 , H02P1/26 , H02P2201/01 , H03K17/168
Abstract: Integrated AC regenerative motor drives and operating methods are presented in which a precharging circuit is provided with an IGBT, a diode and a parallel current limiting component in an intermediate DC circuit between a switching rectifier and an output inverter, and the drive is operated in one of three modes for motoring, regenerating and precharging.
Abstract translation: 综合交流再生电动机的驱动方式和操作方法，其中预充电电路在开关整流器和输出逆变器之间的中间直流电路中设置有IGBT，二极管和并联限流部件，并且驱动器在一个 三种运行，再生和预充电模式。
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公开(公告)号：US11984829B2
公开(公告)日：2024-05-14
申请号：US17558866
申请日：2021-12-22
Applicant: Rockwell Automation Technologies, Inc.
Inventor： Zeljko Jankovic , Ji Jun Cao
CPC classification number: H02P27/06 , H02M7/4833 , H02P2201/01 , H02P2201/03
Abstract: A system has a DC bus circuit with first and second terminals, an intermediate node, first and second capacitors, first and second depletion mode FETs, and first and second switching control circuits, where the first depletion mode FET has a drain coupled to the first bus terminal, a source, and a gate coupled to the intermediate node, the second depletion mode FET has a drain coupled to the intermediate node, a source, and a gate coupled to the second bus terminal, the first switching control circuit turns the first depletion mode FET off responsive to a first capacitor voltage of the first bus capacitor being less than or equal to a second capacitor voltage of the second bus capacitor, and the second switching control circuit turns the second depletion mode FET off responsive to the first capacitor voltage being greater than or equal to the second capacitor voltage.
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Patent Agency Ranking
公开(公告)号：US20230198446A1
公开(公告)日：2023-06-22
申请号：US17558866
申请日：2021-12-22
Applicant: Rockwell Automation Technologies, Inc.
Inventor： Zeljko Jankovic , Ji Jun Cao
CPC classification number: H02P27/06 , H02P27/16 , H02P2201/01
Abstract: A system has a DC bus circuit with first and second terminals, an intermediate node, first and second capacitors, first and second depletion mode FETs, and first and second switching control circuits, where the first depletion mode FET has a drain coupled to the first bus terminal, a source, and a gate coupled to the intermediate node, the second depletion mode FET has a drain coupled to the intermediate node, a source, and a gate coupled to the second bus terminal, the first switching control circuit turns the first depletion mode FET off responsive to a first capacitor voltage of the first bus capacitor being less than or equal to a second capacitor voltage of the second bus capacitor, and the second switching control circuit turns the second depletion mode FET off responsive to the first capacitor voltage being greater than or equal to the second capacitor voltage.
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公开(公告)号：US20190058433A1
公开(公告)日：2019-02-21
申请号：US16168108
申请日：2018-10-23
Applicant: Bitzer Kuehlmaschinenbau GmbH
Inventor： John Gibson , Tobias Hieble , Julian Pfaffl , Juergen Nill , Ferdinand Breithuth
CPC classification number: H02P27/047 , F25B49/025 , F25B2500/26 , F25B2600/021 , H02P23/00 , H02P27/06 , H02P29/02 , H02P29/032 , H02P2201/01 , Y02B30/741
Abstract: In order to improve a method for selecting a frequency converter for a refrigerant compressor unit that includes a refrigerant compressor and an electric drive motor such that the frequency converter is selected in a manner for optimized use, it is proposed that a working state suitable for operation of the refrigerant compressor unit should be selected within an application field of an application graph of the refrigerant compressor, that an operating frequency for this selected working state should be selected, and that a working state operating current value that corresponds to the selected working state and the selected operating frequency should be determined from drive data, for operation of the refrigerant compressor unit.
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公开(公告)号：US20170054301A1
公开(公告)日：2017-02-23
申请号：US15307566
申请日：2015-04-28
Applicant: GENERAL ELECTRIC TECHNOLOGY GMBH
Inventor： Georgios FINTZOS , Robert Stephen WHITEHOUSE , Carl David BARKER
CPC classification number: H02J5/00 , H02J3/382 , H02J3/386 , H02J2003/365 , H02M5/40 , H02M7/02 , H02P9/102 , H02P2101/15 , H02P2201/01 , H02P2201/03 , Y02E10/763
Abstract: A wind farm side voltage source converter comprises a DC terminal for connection to a DC transmission link, an AC terminal for connection to a wind farm that includes at least one wind turbine, and a main controller. The main controller is configured to modify an active power demand (Pdemand) of the voltage source converter which is received from a higher level controller by introducing an artificial inertia factor and/or in response to a measured DC voltage (Vdc_msr) at the DC terminal.
Abstract translation: 风电场侧电压源转换器包括用于连接到DC传输链路的DC终端，用于连接到包括至少一个风力涡轮机的风电场的AC端子和主控制器。 主控制器被配置为通过引入人造惯性因子和/或响应于直流端的测量直流电压（Vdc_msr）来修改从较高级控制器接收的电压源转换器的有功功率需求（Pdemand） 。
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公开(公告)号：US20130106328A1
公开(公告)日：2013-05-02
申请号：US13282898
申请日：2011-10-27
Applicant: Jeremiah Kopiness , Raymond G. Sladky , Ahmed S. Mohamed Sayed Ahmed
Inventor： Jeremiah Kopiness , Raymond G. Sladky , Ahmed S. Mohamed Sayed Ahmed
CPC classification number: H03K17/164 , H02M1/36 , H02M5/4585 , H02P1/26 , H02P2201/01 , H03K17/168
Abstract: Integrated AC regenerative motor drives and operating methods are presented in which a precharging circuit is provided with an IGBT, a diode and a parallel current limiting component in an intermediate DC circuit between a switching rectifier and an output inverter, and the drive is operated in one of three modes for motoring, regenerating and precharging.
Abstract translation: 综合交流再生电动机的驱动方式和操作方法，其中预充电电路在开关整流器和输出逆变器之间的中间直流电路中设置有IGBT，二极管和并联限流部件，并且驱动器在一个 三种运行，再生和预充电模式。
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40.发明申请VERFAHREN ZUR AUSWAHL EINES FREQUENZUMRICHTERS FÜR EINE KÄLTEMITTELVERDICHTEREINHEIT 审中-公开一种用于选择制冷压缩机单元的频率反转器的方法
公开(公告)号：WO2017186259A1
公开(公告)日：2017-11-02
申请号：PCT/EP2016/059168
申请日：2016-04-25
Applicant: BITZER KÜHLMASCHINENBAU GMBH
Inventor： GIBSON, John , HIEBLE, Tobias , PFAFFL, Julian , NILL, Jürgen , BREITHUTH, Ferdinand
IPC: H02P27/04 , F25B31/00 , G06Q50/00 , H02P29/024 , H02P23/00 , H02P29/032
CPC classification number: H02P27/047 , F25B49/025 , F25B2500/26 , F25B2600/021 , H02P23/00 , H02P27/06 , H02P29/02 , H02P29/032 , H02P2201/01 , Y02B30/741
Abstract: Um ein Verfahren zur Auswahl eines Frequenzumrichters für eine Kältemittelverdichtereinheit, umfassend einen Kältemittelverdichter und einen elektrischen Antriebsmotor derart zu verbessern, dass der Frequenzumrichter anwendungsoptimiert ausgewählt wird, wird vorgeschlagen, dass ein für den Betrieb der Kältemittelverdichtereinheit geeigneter Arbeitszustand in einem Einsatzfeld eines Einsatzdiagramms des Kältemittelverdichters ausgewählt wird, dass zu diesem ausgewählten Arbeitszustand eine Betriebsfrequenz ausgewählt wird und dass aus Antriebsdaten ein dem ausgewählten Arbeitszustand und der ausgewählten Betriebsfrequenz entsprechender Arbeitszustandsbetriebsstromwert für den Betrieb der Kältemittelverdichtereinheit ermittelt wird.
Abstract translation:
为了用于选择频率f导航中使用的方法R A K＆AUML; ltemittelverdichtereinheit包括K＆AUML; ltemittelverdichter并以这样的方式使得频率转换器应用优化AUML拾取改善电驱动马达;是HLT，所以建议一 ˚F导航用途r为K＆AUML的操作;而在K＆AUML的使用模式的应用的领域拾取AUML ltemittelverdichters ;; ltemittelverdichtereinheit合适的工作条件是HLT该AUML此拾取; hlten工作状态AUML拾取的操作频率;是HLT和驱动数据到该AUML拾取; hlten工作状态和 选定的运行状态电流值用于制冷剂压缩机单元的运行。
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