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1. 发明申请

US20180175767A1 Motor Control System And Method And Device For Controlling Power Factor On Motor Side 审中-公开
公开(公告)号：US20180175767A1
公开(公告)日：2018-06-21
申请号：US15302599
申请日：2015-09-11
申请人： Guangdong Meizhi Compressor Co., Ltd.
发明人： Wanjie SONG , Xinjie REN , Siqing LIAO , Weimin XIANG , Yongjun FU
IPC分类号： H02P23/26 , H02P21/22 , H02P6/28 , H02K21/02 , H02K1/28 , H02P27/08
CPC分类号： H02P23/26 , H02K1/28 , H02K21/029 , H02P6/28 , H02P21/00 , H02P21/0089 , H02P21/22 , H02P27/08
摘要： The present disclosure provides a method and a device for controlling a power factor on motor side and a system having the same, and the method includes: controlling the motor using a control approach of Id′=0 so as to obtain quadrature-axis voltage Uq′ and direct-axis voltage Ud′ in a virtual coordinate system of a current control cycle; calculating a first control value according to Uq′ and Ud′; obtaining a power factor control target value, and calculating a target control value according to the power factor control target value; performing a PI control on a difference between the target control value and the first control value so as to obtain a coordinate deviation angle, and overlapping the coordinate deviation angle to a motor angle of the current control cycle so as to build a virtual coordinate system of a next control cycle, such that the power factor on the motor side is controllable.

2. 发明申请

US20170317617A1 OPERATING POINT DETERMINATION IN AN ELECTRIC MOTOR SYSTEM 审中-公开
公开(公告)号：US20170317617A1
公开(公告)日：2017-11-02
申请号：US15189963
申请日：2016-06-22
申请人： Faraday&Future Inc.
发明人： Mengwei Campbell , Stefan Grubic
IPC分类号： H02P6/08 , H02K11/24
CPC分类号： H02K11/24 , H02P21/0089 , H02P21/22 , H02P2101/45
摘要： Systems and methods are described for controlling an electric motor. An exemplary system may include a torque detector configured to detect an output torque of the electric motor. The system may also include a controller configured to control a voltage source to apply a predetermined voltage to drive the electric motor and determine an operating table containing a plurality of operating points. The controller may select an operating current value and generate a plurality of current commands. The controller may also apply each of the plurality of current commands to drive the electric motor and determine an output torque generated by the electric motor. The controller may further determine a target current command that generates a maximum output torque. In addition, the controller may determine an operating point of the operating table based on the target current command. Moreover, the controller may control the electric motor using the operating table.

3. 发明授权

US09806597B2 Current conversion device for a single- or multi-axis arrangement and operating method 有权
公开(公告)号：US09806597B2
公开(公告)日：2017-10-31
申请号：US14566438
申请日：2014-12-10
申请人： Siemens Aktiengesellschaft
发明人： Bernd Herrmann , Harald Wiessmann
IPC分类号： H02J1/04 , H02J3/14 , H02M1/088 , H02J3/36 , H02M5/45 , H02M7/5387 , H02P21/00 , H02M1/00 , H02M1/32
CPC分类号： H02M1/088 , H02J3/36 , H02M5/4505 , H02M7/53875 , H02M2001/008 , H02M2001/325 , H02P21/0089 , Y10T307/438
摘要： For operating multi-axis drive assemblies more reliably even in a field weakening range, a current conversion device is proposed which includes a voltage-source DC link, a plurality of inverters having each a DC input side connected to the voltage-source DC link and AC output-side terminals for connection to an electric motor, and a control device configured to short-circuit each of the inverters. A measurement device measures an electrical variable at each of the inverters. The control device determines based on the measured electrical variables independently for each of the inverters directly or indirectly whether a particular inverter is feeding energy into the voltage-source DC link, and short-circuits, when this is the case, the particular inverter independently of the other inverters. A corresponding operating method is also disclosed.

4. 发明授权

US09768719B2 Methods and apparatus for generating current commands for an interior permanent magnet (IPM) motor 有权
公开(公告)号：US09768719B2
公开(公告)日：2017-09-19
申请号：US14859182
申请日：2015-09-18
申请人： Faraday&Future Inc.
发明人： Mengwei Li Campbell , Steven E. Schulz
IPC分类号： H02P21/00 , H02P27/06 , H02P21/06 , H02P21/12
CPC分类号： H02P21/22 , H02P21/0089 , H02P21/06 , H02P21/12 , H02P27/06
摘要： In one aspect, an apparatus includes a motor and inverter configured to provide input power to the motor and a data store comprising at least one entry including a first torque command, a first motor speed, and a first DC voltage value. The first torque command and the first motor speed and the first DC voltage value are associated with a first current output. The apparatus includes a processor configured to receive a torque input, a DC voltage input, and a motor speed input and determine an output current associated with the torque input, the DC voltage input, and the motor speed input, correct the output current to be within a voltage constraint of the motor when the DC voltage input is than a reference voltage at the motor and output the corrected output current to cause the inverter to provide the input power to the motor.

5. 发明授权

US09660560B2 Motor drive circuit and method of driving a motor 有权
公开(公告)号：US09660560B2
公开(公告)日：2017-05-23
申请号：US14780689
申请日：2014-03-26
申请人： TRW Limited
发明人： Graham Alastair Richard Kemp
IPC分类号： H02P21/00 , H02P6/14 , H02P29/66
CPC分类号： H02P6/153 , H02P6/15 , H02P21/0089 , H02P21/22 , H02P29/662
摘要： A drive system for a brushless DC motor having a rotor includes at least one permanent magnet and a stator including at least one phase winding. The system has a drive circuit including a switch associated with the winding for varying the current passing through the winding; a rotor position sensor arranged to sense the position of the rotor; and a controller arranged to provide drive signals to control the switch. The drive system is further arranged to receive a temperature signal that has a value dependent upon the temperature of the at least one magnet of the rotor. The controller is arranged to vary the phase of the current passing through the winding relative to the rotor position dependent upon the temperature of the rotor magnet.

6. 发明申请

US20170085200A1 METHODS AND APPARATUS FOR GENERATING CURRENT COMMANDS FOR AN INTERIOR PERMANENT MAGNET (IPM) MOTOR 有权
公开(公告)号：US20170085200A1
公开(公告)日：2017-03-23
申请号：US14859182
申请日：2015-09-18
申请人： Faraday&Future Inc.
发明人： Mengwei Li Campbell , Steven E. Schulz
IPC分类号： H02P21/00 , H02P27/06
CPC分类号： H02P21/22 , H02P21/0089 , H02P21/06 , H02P21/12 , H02P27/06
摘要： In one aspect, an apparatus includes a motor and inverter configured to provide input power to the motor and a data store comprising at least one entry including a first torque command, a first motor speed, and a first DC voltage value. The first torque command and the first motor speed and the first DC voltage value are associated with a first current output. The apparatus includes a processor configured to receive a torque input, a DC voltage input, and a motor speed input and determine an output current associated with the torque input, the DC voltage input, and the motor speed input, correct the output current to be within a voltage constraint of the motor when the DC voltage input is than a reference voltage at the motor and output the corrected output current to cause the inverter to provide the input power to the motor.

7. 发明申请

US20170072924A1 Method for Controlling a Brake System 审中-公开
标题翻译：制动系统的控制方法
公开(公告)号：US20170072924A1
公开(公告)日：2017-03-16
申请号：US15357612
申请日：2016-11-21
申请人： Continental Teves AG & Co. oHG
发明人： Tom Kaufmann , Peter Stauder
IPC分类号： B60T8/32 , B60T8/40
CPC分类号： B60T8/326 , B60L7/24 , B60T8/4081 , B60T2220/04 , B60T2270/82 , H02P21/0089 , Y02T10/643
摘要： A brake system comprises a cylinder-piston unit movable by an electromechanical actuator. Wheel brakes associated with at least one axle can be supplied with braking pressure via the hydraulic pressure chamber. The electromechanical actuator comprises a rotation-translation transmission and an electronically commutated synchronous machine having a stator with at least two phase windings, a rotor comprising at least one permanent magnet and at least one rotor position sensor. A torque-forming current and/or a magnetic field attenuating current are adjusted in a co-ordinate system which is fixed relative to the rotor. Voltages in the co-ordinate system are detected to serve as control variables and are transformed into a voltage phasor, which indicates for each phase winding of the stator, a voltage to be applied, and a set value for the magnetic field attenuating current is limited to a maximum value being determined from a predetermined characteristic map.
摘要翻译：制动系统包括可由机电致动器移动的气缸 - 活塞单元。与至少一个轴相关联的车轮制动器可以经由液压室被供给制动压力。机电致动器包括旋转平移传输器和电子换向同步电机，其具有具有至少两个相绕组的定子，转子包括至少一个永磁体和至少一个转子位置传感器。在相对于转子固定的坐标系中调整转矩形成电流和/或磁场衰减电流。检测到坐标系中的电压用作控制变量，并将其转换成电压相量，该电压相量表示定子的每个相绕组所施加的电压，并且磁场衰减电流的设定值被限制达到从预定特性图确定的最大值。

8. 发明授权

US09595897B2 Motor control device for controlling current phase on dq/three-phase coordinates 有权
标题翻译：用于控制dq /三相坐标上电流相位的电机控制装置
公开(公告)号：US09595897B2
公开(公告)日：2017-03-14
申请号：US14926344
申请日：2015-10-29
申请人： FANUC CORPORATION
发明人： Hidetoshi Uematsu
IPC分类号： H02P6/14 , H02P21/00 , H02P27/08 , H02P21/10
CPC分类号： H02P6/15 , H02P6/142 , H02P21/0089 , H02P21/0096 , H02P21/10 , H02P21/50 , H02P27/08
摘要： A motor control device for controlling a three-phase AC motor by using dq-three-phase coordinate conversion includes a phase correction amount calculation unit for calculating a phase correction amount by using a detected motor speed and a q-axis current command initial value, a rotor phase angle correction unit for adding or subtracting the phase correction amount to or from a detected rotor phase angle of the motor to calculate a corrected rotor phase angle, and a coordinate conversion unit for performing coordinate conversion between parameters on a dq coordinate system and parameters on a three-phase coordinate system on the basis of the corrected rotor phase angle.
摘要翻译：用于通过使用dq-三相坐标变换来控制三相交流电动机的电动机控制装置包括相位校正量计算单元，用于通过使用检测的电动机速度和q轴电流指令初始值来计算相位校正量，转子相位角校正单元，用于相对于所检测的电动机的转子相位角相加或相减，以计算修正的转子相位角;以及坐标转换单元，用于执行dq坐标系上的参数和基于修正的转子相位角在三相坐标系上的参数。

9. 发明申请

US20160352274A1 SYSTEM OF CONTROLLING INDUCTION ELECTRIC MOTOR 有权
标题翻译：控制电机的控制系统
公开(公告)号：US20160352274A1
公开(公告)日：2016-12-01
申请号：US15164152
申请日：2016-05-25
申请人： LSIS CO., LTD.
发明人： Joo-Young Moon , Hak-Jun Lee , Anno Yoo
IPC分类号： H02P21/00 , H02P21/26 , H02P21/22 , H02P27/08
CPC分类号： H02P21/0089 , H02P21/00 , H02P21/22 , H02P21/26 , H02P23/0086 , H02P27/08
摘要： In some embodiments, a system of controlling an induction electric motor, includes a command voltage output unit for generating a command voltage for operating an inverter according to a command speed and outputting the generated command voltage to the inverter; a control unit for controlling the command voltage output unit such that the command voltage output to the inverter is compared with an operation limiting voltage and the command voltage is corrected to fall within the operation limiting voltage; and the inverter for controlling the induction electric motor depending on the corrected command voltage. Thus, it is possible to precisely control the induction electric motor even in a high speed operation region by regulating the magnitude of the command voltage applied to the induction electric motor by means of dynamic modulation strategies without the magnetic flux controller.
摘要翻译：在一些实施例中，控制感应电动机的系统包括：指令电压输出单元，用于根据指令速度产生用于操作逆变器的指令电压，并将产生的指令电压输出到逆变器; 控制单元，用于控制指令电压输出单元，使得输出到逆变器的指令电压与操作限制电压相比较，并且将指令电压校正为落在操作限制电压内; 以及用于根据校正的指令电压来控制感应电动机的逆变器。因此，通过在没有磁通量控制器的情况下通过动态调制策略来调节施加到感应电动机的指令电压的大小，即使在高速操作区域也可以精确地控制感应电动机。

10. 发明授权

US09425722B2 Electric motor control device and electric motor control method 有权
标题翻译：电动机控制装置及电动机控制方式
公开(公告)号：US09425722B2
公开(公告)日：2016-08-23
申请号：US14384264
申请日：2013-03-08
申请人： NISSAN MOTOR CO., LTD.
发明人： Mitsuhiro Shouji
IPC分类号： H02P6/08 , H02P29/00 , H02P21/00
CPC分类号： H02P6/08 , H02P21/0089 , H02P21/16 , H02P21/20 , H02P29/662
摘要： An electric motor control device includes: a motor constant generator configured to generate a motor constant by using a temperature; a current control unit configured to generate a current command value to an electric motor based on the motor constant and a torque command value and execute a current control mode; a voltage phase control unit configured to calculate a torque estimation value of the electric motor and execute a voltage phase control mode in which a feedback operation is performed for a voltage phase based on the difference between the torque estimation value and the torque command value; and a control mode switching unit configured to switch to the voltage phase control mode in a high rotation area where a flux weakening control is performed. The torque estimation value is calculated using the motor constant common to generation of the current command value in the current control mode.
摘要翻译：电动机控制装置包括：电动机恒定发电机，其被配置为通过使用温度来产生电动机常数; 电流控制单元，其被配置为基于所述电动机常数和转矩指令值向电动机产生电流指令值，并执行电流控制模式; 电压相位控制单元，被配置为计算所述电动机的转矩估计值，并且执行基于所述转矩估计值和所述转矩指令值之间的差异对电压相位执行反馈操作的电压相位控制模式; 以及控制模式切换单元，被配置为在执行磁通削弱控制的高旋转区域中切换到电压相位控制模式。使用在当前控制模式中产生电流指令值的公共电动机常数来计算转矩估计值。

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