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公开(公告)号：US09825579B2
公开(公告)日：2017-11-21
申请号：US15098768
申请日：2016-04-14
申请人： FANUC CORPORATION
发明人： Tatsuya Senoo
CPC分类号： H02P29/662 , H02P29/664 , H02P29/67
摘要： A temperature estimating apparatus for a synchronous motor comprises: a voltage command generating unit for controlling d-phase current by increasing or decreasing d-phase and q-phase voltages; a voltage acquiring unit for d-phase and q-phase voltages when the d-phase current is varied; a rotating speed detecting unit for the synchronous motor; a current detecting unit for the d-phase and q-phase currents; a winding temperature acquiring unit; a winding resistance converting unit for winding resistance from winding temperature; an inductance calculating unit for d-axis inductance based on the variation of the d-phase current and the q-phase voltage and on the rotating speed; a counter electromotive voltage constant calculating unit from the q-phase voltage, the varied d-phase current, the rotating speed, the q-phase current, the winding resistance, and the d-axis inductance; and a magnet temperature estimating unit for estimating magnet temperature based on the counter electromotive voltage constant.
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2.发明申请公开(公告)号：US20170155353A1
公开(公告)日：2017-06-01
申请号：US15324498
申请日：2015-05-07
申请人： Robert Bosch GmbH
发明人： Wei-Lung Lee
IPC分类号： H02P29/66
CPC分类号： H02P29/664 , H02P29/66
摘要： The invention relates to a method for determining a rotor temperature of an electric motor, in particular an asynchronous motor, the rotor temperature being determined at least in accordance with reactive powers and/or in accordance with losses of the electric motor. A first rotor temperature is determined in accordance with the reactive powers and, depending on an operating range of the electric motor, plausibility-checked or replaced by a second rotor temperature, which is determined in accordance with the losses.
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公开(公告)号：US11709365B1
公开(公告)日：2023-07-25
申请号：US17228592
申请日：2021-04-12
申请人： Apple Inc.
发明人： Muhammad F. Hossain , Jia Tao , Vijayanish Varadharajan , Alexander M. Brukwinski , Pyone P. Wynn , Hnin Ookhin , Samuel A. Resnick , Aviran Malik , Jason C. Sauers , Amarnath Vuppala
CPC分类号： G02B27/0176 , H02P29/664 , G02B2027/0138 , G02B2027/0192
摘要： A head-mountable device can effectively manage heat with a motor assembly that efficiently and accurately senses a temperature of a motor. A temperature sensor can be provided on an outer surface (e.g., case) of the motor. A flex circuit can be operably connect both the motor and the temperature sensor to a controller of the head-mountable device. The flex circuit can have a first side coupled to the outer surface of the case, a second side supporting the temperature sensor, and thermally conductive vias extending from the first side to the second side to conduct heat from the case to the sensor. The flex circuit can further include a memory comprising calibration data of the temperature sensor and a connector for outputting temperature data based on the temperature sensor and the calibration data of the memory.
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公开(公告)号：US20150145255A1
公开(公告)日：2015-05-28
申请号：US14404835
申请日：2013-05-31
发明人： Maksim V. Borisenko , Edward Thomas Petrak , Roy David Schultz , Rajeev Verma , Sunil Srinivasa Murthy
CPC分类号： H02K9/04 , B60L11/02 , H02P29/02 , H02P29/60 , H02P29/664
摘要： A system (for controlling cooling of an alternator) comprises a control system, an alternator, and a blower fan, the alternator having a stator and a rotor. The control system is adapted to estimate one or more temperatures of the stator and/or rotor of the alternator using a thermal model. The control system is also adapted to control the blower fan to cool the alternator by providing a specified amount of air flow across the stator and rotor of the alternator, based on the estimated one or more temperatures of the stator and/or rotor.
摘要翻译： 一种用于控制交流发电机的冷却的系统包括控制系统，交流发电机和鼓风机，所述交流发电机具有定子和转子。 控制系统适于使用热模型估计交流发电机的定子和/或转子的一个或多个温度。 控制系统还适于通过基于所估计的一个或多个定子和/或转子的温度，通过在交流发电机的定子和转子上提供规定量的空气流来控制鼓风机风扇来冷却交流发电机。
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公开(公告)号：US08487575B2
公开(公告)日：2013-07-16
申请号：US12568002
申请日：2009-09-28
IPC分类号： G05D23/00
CPC分类号： H02P6/08 , G01R31/343 , H02P29/664
摘要： A temperature estimation controller and methods are provided for estimating stator winding temperature over a full range of motor operating speeds. In one implementation, the angular velocity of a motor is determined along with a total power loss for each phase of said motor. The total power loss in each phase comprises stator winding power loss and a core power loss. Stator winding temperatures for each phase of motor can then estimated based on the total power loss in that phase, and a combined thermal impedance for that phase. The combined thermal impedance comprises a first thermal impedance between the stator winding and the stator core, and a second thermal impedance between the stator core and the motor coolant.
摘要翻译： 提供了一种温度估计控制器和方法，用于在整个电机运行速度范围内估计定子绕组温度。 在一个实施方式中，确定电动机的角速度以及所述电动机的每相的总功率损耗。 每相中的总功率损耗包括定子绕组功率损耗和铁芯功率损耗。 然后可以根据该阶段的总功率损耗和该阶段的组合热阻抗来估计电机各相的定子绕组温度。 组合的热阻抗包括定子绕组和定子铁心之间的第一热阻抗，以及定子铁芯和电动机冷却剂之间的第二热阻抗。
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公开(公告)号：US20050067991A1
公开(公告)日：2005-03-31
申请号：US10675723
申请日：2003-09-30
申请人： Yehia El-Ibiary
发明人： Yehia El-Ibiary
CPC分类号： H02P23/14 , G01R31/343 , H02P29/664
摘要： A system and method for establishing estimated values of electrical parameters of a motor. The electrical parameters may be established from stator resistance data and motor data obtained at a single load on the motor. The electrical parameters also may be established without stator resistance data by using motor data at three load conditions of the motor. The electrical parameters also may be established from baseline motor data and motor data obtained at a desired operating load of the motor. Based on the estimated values, the system and method also may be used to estimate motor operating parameters, such as torque, efficiency, output power, output speed, and other performance criteria of the motor.
摘要翻译： 一种用于建立电动机的电参数的估计值的系统和方法。 电气参数可以从定子电阻数据和马达上单个负载获得的电机数据建立。 通过在电动机的三个负载条件下使用电动机数据，也可以在没有定子电阻数据的情况下建立电参数。 电气参数也可以从基于电动机数据和在电动机的期望运行负载下获得的电动机数据建立。 基于估计值，系统和方法也可用于估计电机的运行参数，如转矩，效率，输出功率，输出速度和电机的其他性能标准。
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公开(公告)号：US09755557B2
公开(公告)日：2017-09-05
申请号：US14394637
申请日：2012-09-19
申请人： Kenichi Akita , Masato Mori , Mitsunori Tabata
发明人： Kenichi Akita , Masato Mori , Mitsunori Tabata
CPC分类号： H02P9/48 , B60L15/02 , B60L2240/425 , B60L2240/429 , B60L2240/80 , H02P9/14 , H02P29/664 , Y02T10/645
摘要： A field current limiting section includes a field current limitation instructing section for, when a field current limitation determining section determines that a determination value has reached a predetermined determination threshold value, generating a field current limiting instruction to a field current control section so as to limit field current to be equal to or smaller than a predetermined permissible value during a predetermined field current limitation time Tlim. A field current limitation releasing section outputs a field current limitation releasing instruction to the field current limiting section so as to release limitation of the field current during a predetermined field current limitation release time TC. When having received the field current limitation releasing instruction from the field current limitation releasing section, the field current limiting section releases limitation of the field current during the predetermined field current limitation release time.
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公开(公告)号：US09490682B2
公开(公告)日：2016-11-08
申请号：US14404835
申请日：2013-05-31
发明人： Maksim V. Borisenko , Edward Thomas Petrak , Roy David Schultz , Rajeev Verma , Sunil Srinivasa Murthy
CPC分类号： H02K9/04 , B60L11/02 , H02P29/02 , H02P29/60 , H02P29/664
摘要： A system (for controlling cooling of an alternator) comprises a control system, an alternator, and a blower fan, the alternator having a stator and a rotor. The control system is adapted to estimate one or more temperatures of the stator and/or rotor of the alternator using a thermal model. The control system is also adapted to control the blower fan to cool the alternator by providing a specified amount of air flow across the stator and rotor of the alternator, based on the estimated one or more temperatures of the stator and/or rotor.
摘要翻译： 一种用于控制交流发电机的冷却的系统包括控制系统，交流发电机和鼓风机，所述交流发电机具有定子和转子。 控制系统适于使用热模型估计交流发电机的定子和/或转子的一个或多个温度。 控制系统还适于通过基于所估计的一个或多个定子和/或转子的温度，通过在交流发电机的定子和转子上提供规定量的空气流来控制鼓风机风扇来冷却交流发电机。
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公开(公告)号：US20120209467A1
公开(公告)日：2012-08-16
申请号：US13503788
申请日：2009-12-28
申请人： Masaki Kono , Hideo Okayama
发明人： Masaki Kono , Hideo Okayama
IPC分类号： B60L15/00
CPC分类号： B60L3/0023 , B60L3/0061 , B60L2200/26 , H02P21/16 , H02P29/664 , Y02T10/643
摘要： To include a power converter that drives an induction machine and a control unit that controls the, power converter. The control unit includes a drive stopping unit. The drive stopping unit includes a secondary-resistance-temperature detecting unit that detects temperature rise of a secondary resistance of the induction machine based on a current (a d-axis-current detection value and a q-axis-current detection value, or a d-axis current command and a q-axis current command) detected by the induction machine, an inverter angular frequency calculated based on the current, and speed information of an electric vehicle detected by an external-speed-information detecting unit, and the drive stopping unit also includes a drive-stopping-signal output unit that outputs a drive stopping signal for stopping a driving operation of the power converter based on the speed information ωtrain of an electric vehicle and an output (deviation) from the secondary-resistance-temperature detecting unit.
摘要翻译： 包括驱动感应电机的电源转换器和控制电源转换器的控制单元。 控制单元包括驱动停止单元。 驱动停止单元包括二次电阻温度检测单元，其基于电流（d轴电流检测值和q轴电流检测值或者检测电流检测值）来检测感应电机的二次电阻的温度上升 d轴电流指令和q轴电流指令），基于电流计算的逆变器角频率和由外部速度信息检测单元检测的电动车辆的速度信息，以及驱动器 停止单元还包括驱动停止信号输出单元，其基于电动车辆的速度信息ωtrain输出用于停止功率转换器的驱动操作的驱动停止信号和从次级电阻温度的输出（偏差） 检测单元。
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公开(公告)号：US20110050141A1
公开(公告)日：2011-03-03
申请号：US12568002
申请日：2009-09-28
IPC分类号： H02P7/00
CPC分类号： H02P6/08 , G01R31/343 , H02P29/664
摘要： A temperature estimation controller and methods are provided for estimating stator winding temperature over a full range of motor operating speeds. In one implementation, the angular velocity of a motor is determined along with a total power loss for each phase of said motor. The total power loss in each phase comprises stator winding power loss and a core power loss. Stator winding temperatures for each phase of motor can then estimated based on the total power loss in that phase, and a combined thermal impedance for that phase. The combined thermal impedance comprises a first thermal impedance between the stator winding and the stator core, and a second thermal impedance between the stator core and the motor coolant.
摘要翻译： 提供了一种温度估计控制器和方法，用于在整个电机运行速度范围内估计定子绕组温度。 在一个实施方式中，确定电动机的角速度以及所述电动机的每相的总功率损耗。 每相中的总功率损耗包括定子绕组功率损耗和铁芯功率损耗。 然后可以根据该阶段的总功率损耗和该阶段的组合热阻抗来估计电机各相的定子绕组温度。 组合的热阻抗包括定子绕组和定子铁心之间的第一热阻抗，以及定子铁芯和电动机冷却剂之间的第二热阻抗。
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