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公开(公告)号：US20170111004A1
公开(公告)日：2017-04-20
申请号：US15129011
申请日：2014-05-13
CPC分类号： H02P29/00 , G05B17/02 , H02P21/143 , H02P23/14 , H02P29/0016
摘要： By providing a configuration for calculating motor control constants to be set in a motor control apparatus automatically on the basis of a target response time constant obtained from a target response time constant input unit, waveform parameters obtained from a waveform parameter input unit, a normalized time constant obtained from a normalized time constant calculation unit, and a motor load inertia obtained from a motor load inertia input unit, it is possible to obtain a motor control constant calculation device that can determine appropriate motor control constants for obtaining a desired response characteristic by automatic calculation while avoiding variation and an increase in the number of steps due to differences in the abilities of users.
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公开(公告)号：US20170040916A1
公开(公告)日：2017-02-09
申请号：US15298154
申请日：2016-10-19
发明人： Yasufumi YOSHIURA , Yasuhiko KAKU
CPC分类号： H02P7/00 , G05B19/404 , H02P21/143 , H02P23/14 , H02P29/00
摘要： Provided is a motor control device, including an acceleration command calculation unit configured to calculate an acceleration command directed to a motor, a torque command calculation unit configured to calculate a torque command directed to the motor based on the acceleration command and a predetermined moment-of-inertia value, a torque correction value calculation unit configured to estimate disturbance of the motor based on the torque command and at least one of a motor position or a motor speed, to thereby calculate a torque correction value for the torque command, and a moment-of-inertia value change unit configured to change the predetermined moment-of-inertia value based on an estimated moment-of-inertia ratio, which is a ratio of the torque correction value to the torque command.
摘要翻译： 提供了一种电动机控制装置，包括：加速指令计算单元，被配置为计算针对电动机的加速度指令;扭矩指令计算单元，被配置为基于加速指令计算指向电动机的转矩指令和预定时刻 - 惯量值，扭矩校正值计算单元，被配置为基于所述转矩指令和所述电动机位置或电动机速度中的至少一个来估计所述电动机的干扰，从而计算所述转矩指令的转矩校正值，以及瞬间 - 惯性值改变单元，其基于作为转矩校正值与转矩指令的比率的估计转动惯量比来改变预定转动惯量值。
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公开(公告)号：US09013131B2
公开(公告)日：2015-04-21
申请号：US13992147
申请日：2011-12-08
申请人： Ki Hong Kim
发明人： Ki Hong Kim
CPC分类号： G05B13/0245 , H02P21/143 , H02P23/14
摘要： The present disclosure relates to a real-time servo motor controller based on a load weight capable of not only adaptively controlling the servo motor even when load inertia varies in accordance with a weight of a load (material) but also controlling the servo motor in an optimum state regardless of the load weight by reflecting in real time various mechanical variables generated while transferring the load.
摘要翻译： 本公开涉及一种基于负载重量的实时伺服电动机控制器，其不仅能够自适应地控制伺服电动机，即使当负载惯量根据负载（材料）的重量而变化时，也可以在伺服电动机中控制伺服电动机 通过实时反映在传送负载时产生的各种机械变量而与负载重量无关的最佳状态。
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公开(公告)号：US20230405875A1
公开(公告)日：2023-12-21
申请号：US18032240
申请日：2021-09-20
申请人： HUSQVARNA AB
发明人： Magnus Rosén , Victor Johansson , David Dufke , Johan Berg
CPC分类号： B28D7/005 , B28D1/04 , H02P3/22 , H02P21/143
摘要： A hand-held electrically powered cut-off tool (100) for cutting concrete and stone by a rotatable cutting disc (105), the cut-off tool (100) comprising an electric motor (130) arranged to be controlled by a control unit (110) via a motor control interface (120), wherein the control unit (110) is arranged to obtain data indicative of an angular velocity of the cutting disc (105), and to detect a kickback condition based on a decrease in angular velocity, wherein the control unit (110) is arranged to control an electromagnetic braking of the electric motor (130) in response to detecting a kickback condition, wherein the control unit (110) is arranged to determine an angular acceleration associated with the electric motor (130), and to detect the kickback condition based on a comparison between the determined angular acceleration and a configurable detection threshold.
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公开(公告)号：US09859836B2
公开(公告)日：2018-01-02
申请号：US15129011
申请日：2014-05-13
CPC分类号： H02P29/00 , G05B17/02 , H02P21/143 , H02P23/14 , H02P29/0016
摘要： By providing a configuration for calculating motor control constants to be set in a motor control apparatus automatically on the basis of a target response time constant obtained from a target response time constant input unit, waveform parameters obtained from a waveform parameter input unit, a normalized time constant obtained from a normalized time constant calculation unit, and a motor load inertia obtained from a motor load inertia input unit, it is possible to obtain a motor control constant calculation device that can determine appropriate motor control constants for obtaining a desired response characteristic by automatic calculation while avoiding variation and an increase in the number of steps due to differences in the abilities of users.
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公开(公告)号：US20170214356A1
公开(公告)日：2017-07-27
申请号：US15480384
申请日：2017-04-06
发明人： Yasufumi YOSHIURA , Yasuhiko KAKU
IPC分类号： H02P29/00
CPC分类号： H02P29/00 , H02P6/34 , H02P21/143 , H02P29/40 , H02P29/50
摘要： Provided is an electric-motor control device, including: a command value calculation unit configured to calculate a command value directed to an electric motor based on a command value and a given moment-of-inertia value; a difference detection unit configured to detect a difference between the moment-of-inertia value and an estimated moment-of-inertia value; a moment-of-inertia value change unit configured to change at least anyone of the moment-of-inertia value and a correction coefficient for the moment-of-inertia value based on the difference; and a change restriction unit configured to restrict a change in the moment-of-inertia value or the correction coefficient when at least any one of the moment-of-inertia value and the correction coefficient is changed to decrease by the moment-of-inertia value change unit.
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公开(公告)号：US09647602B1
公开(公告)日：2017-05-09
申请号：US14932613
申请日：2015-11-04
CPC分类号： G01R31/343 , H02P21/14 , H02P21/143 , H02P23/14 , H02P29/64
摘要： An electric machine assembly includes an electric machine having a stator and a rotor. The stator has stator windings at a stator winding temperature (tS) and the rotor is configured to rotate at a rotor speed (ω). A controller is operatively connected to the electric machine and has a processor and tangible, non-transitory memory on which is recorded instructions for executing a method for determining stator winding resistance. The controller is configured to determine a high-speed resistance factor (rH) which is based at least partially on the torque command (T*), the stator winding temperature (tS), the rotor speed (ω), a characterized torque error and the number of pole pairs (P). The controller may determine a total resistance value (R) based on a weighting factor (k), the high-speed resistance factor (rH) and the low-speed resistance factor (rL).
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公开(公告)号：US20150260159A1
公开(公告)日：2015-09-17
申请号：US14634053
申请日：2015-02-27
CPC分类号： F03D7/0284 , F03D7/0276 , F03D9/257 , F03D80/88 , F05B2270/1033 , F05B2270/107 , F05B2270/337 , H02J3/386 , H02P9/00 , H02P21/143 , Y02E10/723 , Y02E10/763
摘要： Inertia control system for a wind turbine comprising a rotor (5), generator (12) driven by the rotor (5) that interacts with a power converter (13) to generate electricity, a wind turbine controller (15) that comprises a blade pitch controller (19) and a generated power controller (18), a controller for the power converter (14) that interacts with the wind turbine controller (15), characterized because it comprises an inertia emulation block (17) that generates an extra power signal (32) negatively proportional to the frequency change rate (23) that is added to the power reference of the wind turbine generated power controller (15) and adapts the rotational speed reference of the wind turbine controller (15) according to the grid frequency (21) to prevent distortion in the active power output after adding or subtracting power in proportion to the frequency change rate (23).
摘要翻译： 一种用于风力涡轮机的惯性控制系统，包括转子（5），由转子（5）驱动的发电机（12），其与功率转换器（13）相互作用以发电;风力涡轮机控制器（15），其包括叶片间距 控制器（19）和生成的功率控制器（18），用于与风力涡轮机控制器（15）相互作用的用于功率转换器（14）的控制器，其特征在于，其包括惯性仿真块（17），其产生额外的功率信号 （32）与所述风力涡轮机发电功率控制器（15）的功率基准相加的频率变化率（23）成负比，并根据电网频率（15）适应风力涡轮机控制器（15）的转速基准 21），以防止与频率变化率（23）成比例地加减功率后的有功功率输出失真。
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公开(公告)号：US20130047724A1
公开(公告)日：2013-02-28
申请号：US13590708
申请日：2012-08-21
申请人： Jussi TAMMINEN , Tero Ahonen , Jero Ahola , Markku Niemelä
发明人： Jussi TAMMINEN , Tero Ahonen , Jero Ahola , Markku Niemelä
IPC分类号： G01P3/12
CPC分类号： F04D27/001 , F04D25/06 , F04D25/08 , F04D29/703 , H02P21/143 , H02P23/14
摘要： A method for determining a change in a mass of a fan impeller. The method includes inducing a torque to the fan impeller and determining a change in the angular speed of the fan impeller, induced by the torque. A value for a first parameter representing a present mass of the fan impeller is determined on the basis of the change in the angular speed and the torque. The change in the mass is then determined on the basis of the first parameter and a second parameter representing the reference mass of the fan impeller.
摘要翻译： 一种用于确定风扇叶轮的质量变化的方法。 该方法包括向风扇叶轮诱导扭矩并确定由扭矩引起的风扇叶轮的角速度的变化。 基于角速度和转矩的变化来确定表示风扇叶轮的当前质量的第一参数的值。 然后基于第一参数和表示风扇叶轮的参考质量的第二参数来确定质量的变化。
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公开(公告)号：US20230390963A1
公开(公告)日：2023-12-07
申请号：US18032250
申请日：2021-09-20
申请人： HUSQVARNA AB
发明人： Magnus Rosén , Victor Johansson , David Dufke , Johan Berg
CPC分类号： B28D7/005 , B28D1/04 , H02P21/143 , H02P3/22 , B25F5/00
摘要： A hand-held electrically powered cut-off tool (100) for cutting concrete and stone by a rotatable cutting disc (105), the cut-off tool (100) comprising an electric motor (130) arranged to be controlled by a control unit (110) via a motor control interface (120), wherein the control unit (110) is arranged to obtain data indicative of an angular velocity of the cutting disc (105), and to detect a kickback condition based on a decrease in angular velocity, wherein the control unit (110) is arranged to determine an angular acceleration associated with the electric motor (130), and to detect the kickback condition based on a comparison between the determined angular acceleration and a detection threshold, wherein the detection threshold is configured at an angular acceleration between 5000 rad/s2 and 35000 rad/s2, and preferably between 10000 rad/s2 and 30000 rad/s2, and more preferably between 20000 rad/s2 and 30000 rad/s2.
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