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1. 发明申请

US20190058426A1 SYSTEM AND METHOD FOR OPERATING A PUMPED STORAGE POWER PLANT WITH A DOUBLE FED INDUCTION MACHINE 审中-公开
公开(公告)号：US20190058426A1
公开(公告)日：2019-02-21
申请号：US16104991
申请日：2018-08-20
申请人： GE Energy Power Conversion Technology Ltd
发明人： Kai Alexander Rothenhagen , Piotr Sadowski
IPC分类号： H02P9/30 , H02P9/00 , H02P9/10 , F03B13/06
CPC分类号： H02P9/305 , F03B13/06 , H02P9/007 , H02P9/102 , H02P23/08 , H02P29/68 , H02P2101/10 , H02P2103/10
摘要： A system and method of operating a pumped storage power plant using a double fed induction machine with a frequency converter in a rotor circuit is disclosed. A current target value for the rotor current frequency is determined based on a target power to be transmitted between an electrical grid and the double fed induction machine depending on measured actual operating variables. A current inadmissible synchronous deadband is determined depending on variables characterizing a current state of the pumped storage power plant. The synchronous deadband is determined by a permissible minimum required rotor current frequency or speed difference of the rotor speed from the synchronous speed for the stationary operation. The converter is controlled to generate voltages and currents with the current target value of the rotor current frequency if the current target value of the rotor current frequency or speed does not fall in the current inadmissible synchronous deadband.

2. 发明授权

US09843283B2 Control device of rotating electric machine and method for controlling the same 有权
公开(公告)号：US09843283B2
公开(公告)日：2017-12-12
申请号：US14892119
申请日：2014-05-19
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Takashi Ota , Youhei Yamada
IPC分类号： H02P23/08 , H02P21/00
CPC分类号： H02P23/08 , H02P21/0025
摘要： An electronic control unit includes calculating a slip frequency of a rotating electric machine from a torque instruction value to the rotating electric machine and a target value of output efficiency to the rotating electric machine, calculating a frequency of the instruction signal from the slip frequency and a rotational frequency of the rotating electric machine, the slip frequency being changed by changing the target value of the output efficiency with the torque instruction value maintained and changing the slip frequency so as to change the frequency of the instruction signal to out of an inverter lock frequency band when the frequency of the instruction signal is included in the inverter lock frequency band.

3. 发明授权

US09641116B2 Method and device for operating an asynchronous machine, and an asynchronous machine 有权
公开(公告)号：US09641116B2
公开(公告)日：2017-05-02
申请号：US14901437
申请日：2014-06-04
申请人： Robert Bosch GmbH
发明人： Manfred Weiffen
IPC分类号： H02P1/24 , H02P23/08 , H02P27/06
CPC分类号： H02P23/08 , H02P27/06
摘要： The invention relates to a method for operating an asynchronous machine (1) comprising a rotor (3) and a stator (2), in which a torque of the asynchronous machine (1) is adjusted by specifying a desired magnetic flux of a surrounding magnetic field of the stator (2) and specifying a desired slip between a rotational speed of the rotor (3) and the rotational speed of the surrounding magnetic field. According to the invention, at least in the load condition and when a rotary frequency of the surrounding magnetic field of the stator is equal to zero, the desired magnetic flux and/or the desired slip with constant torque is changed in such a way that an actual rotary frequency of the surrounding magnetic field is not equal to zero.

4. 发明申请

US20160336881A1 Single Phase Motor Energy Economizer for Regulating the Use of Electricity 审中-公开
标题翻译：用于调节电力使用的单相电机节能器
公开(公告)号：US20160336881A1
公开(公告)日：2016-11-17
申请号：US15218116
申请日：2016-07-25
申请人： Protective Energy Economizer Technology
发明人： Mario Marcelo Marcoccia
IPC分类号： H02P1/02 , H02H7/09 , G05B19/042 , H02H11/00
CPC分类号： H02P1/029 , G05B19/042 , H02H7/09 , H02H11/006 , H02P1/028 , H02P1/42 , H02P1/426 , H02P23/02 , H02P23/08 , H02P23/26
摘要： A system for reducing inrush loading when a source power is restored includes a device for switching power that selectively connects a load to the source of power and a circuit for measuring the AC voltage at the source and
摘要翻译：用于在源电源恢复时减少浪涌负荷的系统包括用于切换功率的装置，用于选择性地将负载连接到电源，以及用于测量源的AC电压的电路，

5. 发明申请

US20160276971A1 METHODS OF AUTO TUNING MACHINE PARAMETERS AND SYSTEMS THEREOF 审中-公开
标题翻译：自动调谐机参数及其系统的方法
公开(公告)号：US20160276971A1
公开(公告)日：2016-09-22
申请号：US14658804
申请日：2015-03-16
申请人： Lav THYAGARAJAN , Long WU , Tianjun FU
发明人： Lav THYAGARAJAN , Long WU , Tianjun FU
IPC分类号： H02P23/08 , H02P25/02 , H02P23/30
CPC分类号： H02P23/08 , H02P21/14 , H02P23/30 , H02P25/02
摘要： In one example embodiment, a method includes determining a first adjustment value for a slip frequency of a rotor in an induction motor, determining a second adjustment value for an inductance of the induction motor and tuning the slip frequency of the rotor and the inductance of the induction motor based on the first adjustment value and the second adjustment value, respectively.
摘要翻译：在一个示例性实施例中，一种方法包括确定感应电动机中转子的转差频率的第一调整值，确定感应电动机的电感的第二调整值并调整转子的转差频率和感应电动机分别基于第一调整值和第二调整值。

6. 发明授权

US09431949B2 Induction motor speed estimation 有权
标题翻译：感应电机速度估算
公开(公告)号：US09431949B2
公开(公告)日：2016-08-30
申请号：US14264332
申请日：2014-04-29
申请人： General Electric Company
发明人： Pinjia Zhang , Prabhakar Neti , Patel Bhageerath Reddy
IPC分类号： H02P23/00 , H02P25/00 , H02P27/00 , H02P23/08 , H02P23/14 , H02P27/02
CPC分类号： H02P23/08 , H02P21/18 , H02P23/14 , H02P23/16 , H02P27/026 , H02P29/0241
摘要： A method for estimating a speed of an induction motor includes applying a voltage to the induction motor and measuring a current of the induction motor. A current fast fourier transform (FFT) of the current is then determined and a slip of the induction motor is calculated based on the current FFT. A speed of the induction motor is then estimated based on the slip of the induction motor.
摘要翻译：用于估计感应电动机的速度的方法包括向感应电动机施加电压并测量感应电动机的电流。然后确定电流的当前快速傅立叶变换（FFT），并且基于当前FFT来计算感应电动机的滑差。然后基于感应电动机的滑移来估计感应电动机的速度。

7. 发明申请

US20160156298A1 METHOD AND DEVICE FOR OPERATING AN ASYNCHRONOUS MACHINE, AND AN ASYNCHRONOUS MACHINE 有权
标题翻译：用于操作异步机的方法和装置，以及异步机
公开(公告)号：US20160156298A1
公开(公告)日：2016-06-02
申请号：US14901437
申请日：2014-06-04
申请人： ROBERT BOSCH GMBH
发明人： Manfred Weiffen
IPC分类号： H02P23/08
CPC分类号： H02P23/08 , H02P27/06
摘要： The invention relates to a method for operating an asynchronous machine (1) comprising a rotor (3) and a stator (2), in which a torque of the asynchronous machine (1) is adjusted by specifying a desired magnetic flux of a surrounding magnetic field of the stator (2) and specifying a desired slip between a rotational speed of the rotor (3) and the rotational speed of the surrounding magnetic field. According to the invention, at least in the load condition and when a rotary frequency of the surrounding magnetic field of the stator is equal to zero, the desired magnetic flux and/or the desired slip with constant torque is changed in such a way that an actual rotary frequency of the surrounding magnetic field is not equal to zero.
摘要翻译：本发明涉及一种用于操作包括转子（3）和定子（2）的异步电机（1）的方法，其中异步电机（1）的扭矩通过指定周围磁体的期望磁通量来调节并且确定转子（3）的旋转速度与周围磁场的旋转速度之间的期望滑差。根据本发明，至少在负载条件下，当定子的周围磁场的旋转频率等于零时，具有恒定转矩的所需磁通量和/或期望的滑差以这样的方式改变：周围磁场的实际旋转频率不等于零。

8. 发明授权

US09190947B2 Electric power tool 有权
标题翻译：电动工具
公开(公告)号：US09190947B2
公开(公告)日：2015-11-17
申请号：US13760435
申请日：2013-02-06
申请人： MAKITA CORPORATION
发明人： Kenya Yanagihara , Yoshitaka Ichikawa , Motohiro Omura , Yutaka Matsunaga
IPC分类号： H02P6/00 , H02P23/08 , H02P23/00 , B25F5/00
CPC分类号： H02P23/08 , B25F5/00 , H02P23/00
摘要： An electric power tool according to the present invention is provided with a tool main body, an induction motor, a power supply unit, and an inverter. The power supply unit and the inverter are integrally incorporated in the tool main body together with the induction motor.
摘要翻译：根据本发明的电动工具设置有工具主体，感应电动机，电源单元和逆变器。电源单元和逆变器与感应电动机一体地并入工具主体。

9. 发明授权

US09148082B2 Control device and control method 有权
标题翻译：控制装置及控制方法
公开(公告)号：US09148082B2
公开(公告)日：2015-09-29
申请号：US14266164
申请日：2014-04-30
申请人： Takashi Ota
发明人： Takashi Ota
IPC分类号： H02P23/00 , H02P27/06 , H02P23/08 , B60L3/00
CPC分类号： H02P23/0095 , B60L3/0061 , H02P23/08 , H02P23/28 , H02P27/06 , H02P2207/01 , Y02T10/642
摘要： A control device for an induction motor that drives a vehicle includes an electronic control unit. The electronic control unit i) controls torque of the induction motor when an inverter that controls supply of electric current to the induction motor is in a locked state, so as to release the inverter from the locked state, ii) determines whether the inverter is in the locked state, iii) controls a slip frequency of the induction motor when it determines that the inverter is in the locked state, and iv) superimposes a frequency that actual torque does not substantially respond, on the slip frequency, so that an electric frequency lies in a region outside a lock region in which the inverter is in the locked state.
摘要翻译：用于驱动车辆的感应电动机的控制装置包括电子控制单元。电子控制单元i）当控制对感应电动机的电流的供给的逆变器处于锁定状态时，控制感应电动机的转矩，从而将逆变器从锁定状态解除，ii）判断逆变器是否处于锁定状态，iii）当确定变频器处于锁定状态时控制感应电动机的转差频率，以及iv）将实际转矩基本上不响应的频率叠加在转差频率上，使得电频率位于逆变器处于锁定状态的锁定区域外的区域。

10. 发明授权

US08362735B2 Single phase motor energy economizer for regulating the use of electricity 有权
标题翻译：单相电机节能器用于调节电力的使用
公开(公告)号：US08362735B2
公开(公告)日：2013-01-29
申请号：US13041686
申请日：2011-03-07
申请人： Mario M. Marcoccia
发明人： Mario M. Marcoccia
IPC分类号： H02P1/42 , H02P3/18
CPC分类号： H02P1/029 , G05B19/042 , H02H7/09 , H02H11/006 , H02P1/028 , H02P1/42 , H02P1/426 , H02P23/02 , H02P23/08 , H02P23/26
摘要： A device for improving efficiency of an induction motor that soft-starts the motor by applying a voltage to the motor that is substantially less than the rated voltage then gradually increasing the voltage while monitoring changes in current drawn by the motor, thereby detecting when maximum efficiency is found. Once maximum efficiency is found, the nominal motor current is found and operating ranges are set. Now, the voltage to the motor is increased/decreased by measuring the phase angle between the voltage and the current to the motor and increasing the voltage when the phase angle is less than a minimum phase angle (determined during soft-start) and decreasing the voltage when the phase angle is greater than or equal to the minimum phase angle as long as the voltage does not fall below a minimum voltage determined during soft-start.
摘要翻译：一种用于提高感应电动机的效率的装置，其通过向电动机施加基本上小于额定电压的电压来软启动电动机，然后逐渐增加电压，同时监测由电动机汲取的电流的变化，从而检测何时最大效率被发现。一旦找到最大效率，就会找到电机额定电流，并设置工作范围。现在，通过测量电压与电机电流之间的相位角，当相位角小于最小相位角（软启动期间确定）时，增加电压，可以提高/降低电机的电压，并降低只要电压不低于软启动时确定的最小电压，相位角大于或等于最小相位角时的电压。

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