公开(公告)号：US10014811B2

公开(公告)日：2018-07-03

申请号：US15383275

申请日：2016-12-19

Applicant: LSIS CO., LTD.

Inventor： Mi-Rim Jeon

IPC: H02P27/06 ,  H02P21/04 ,  H02P25/02 ,  H02P21/14 ,  G01R19/25 ,  H02P27/12 ,  H02P21/20

CPC classification number: H02P25/02 ,  G01R19/25 ,  H02P21/04 ,  H02P21/14 ,  H02P21/22 ,  H02P27/06

Abstract: The present disclosure relates to an apparatus for correcting a current reference, and more particularly, to an apparatus for correcting a current reference including a calculation unit configured to set a first torque reference section and a second torque reference section using candidate values of a correction factor that corrects the current reference so as to enable the current reference to satisfy rated operating conditions of the induction machine, and calculate the correction factor according to a section, in which the torque reference is included, of the first torque reference section and the second torque reference section, and a correction unit configured to correct the current reference using the correction factor.

公开(公告)号：US09998054B1

公开(公告)日：2018-06-12

申请号：US15493490

申请日：2017-04-21

Applicant: Summit ESP, LLC

Inventor： Tom G. Yohanan ,  Ryan Bridwell Ashbaugh ,  John Vanderstaay Kenner

IPC: E21B43/00 ,  F04D15/00 ,  H02P27/04 ,  H02P25/02 ,  H02P25/16 ,  H02K17/16

CPC classification number: H02P27/047 ,  H02K17/16 ,  H02P25/02 ,  H02P25/16

Abstract: An electric submersible pump (ESP) variable speed drive (VSD) controller is described. A VSD control system includes a pump assembly including an induction motor operatively coupled to a pump, a power cable and a transformer electrically coupled between the induction motor and a VSD controller that controls a speed of the induction motor, the VSD controller including a converter section that sends a direct current (DC), a DC link including a DC smoothing capacitor that smooths the DC, an inverter that converts the smoothed DC to a pulse width modulated (PWM) output voltage, the inverter including at least one silicon carbide (SiC) power semiconductor module, and a PWM filter that filters the PWM output voltage to produce near sinusoidal voltages, the PWM filter including inductors, and the PWM filter sending voltage to the transformer.

公开(公告)号：US20180026566A1

公开(公告)日：2018-01-25

申请号：US15731365

申请日：2017-06-01

Applicant: Charles Frederick Stewart

Inventor： Charles Frederick Stewart

IPC: H02P27/06 ,  F02B63/04 ,  F02D37/02 ,  H02P25/02

CPC classification number: H02P27/06 ,  F02B63/04 ,  F02D37/02 ,  F02D41/0027 ,  F02D41/021 ,  H02J7/1446 ,  H02J7/345 ,  H02P25/02

Abstract: This system changes the way internal Gasoline, Diesel, Turbine, and Combustion Engines (10 operating portable Alternators/Generators (30), or Stationary Power Stations (40) produce AC/DC, any Hertz electrical input power to any Hertz ECU/VFD (50), where the output from the ECU/VFD (50) to the Electric motor (80), using all of my Patent controlling systems, so the momentary power loss systems can go up to 100% which is higher than normally used, the output of any cycles per second is not used any longer per HP, from the ECU/VFD (50) oversize capacitors (60) can go to 100% using internally/externally or both, starts at any Hertz, the voltage is decreased exactly 10.4165% less Hertz from the (50) ECU/VFD, into the Motor (80), where it's reduced 37.5% also, the first reduction in any cycles is less allowing smaller internal combustion engines (10) Alternators/Generators (30) operating larger electric motors (80).

公开(公告)号：US20150244300A1

公开(公告)日：2015-08-27

申请号：US14620207

申请日：2015-02-12

Applicant: HANKING POWER TECHNOLOGY CO., LTD.

Inventor： Tzu-Nan CHUANG

IPC: H02P25/02 ,  H02P25/22

CPC classification number: H02P25/02 ,  H02K16/00 ,  H02P6/08 ,  H02P25/22

Abstract: A motor speed control system includes a motor, a control module and a displaying module. The motor includes a rotor and a stator. The rotor includes at least one induction rotor portion. The stator includes at least one induction stator portion. The induction rotor portion is corresponding to the induction stator portion. The control module is electrically connected to the rotor and the stator. The control module controls an induction rotor current of the induction rotor portion and an induction stator current of the induction stator port on to produce a rotor speed. The control module decreases or turns off the induction rotor current to keep the rotor speed at a predetermined value according to a rotational inertia of the rotor and the induction stator current when the rotor speed reaches the predetermined value. The displaying module displays the rotor speed and variable currents.

Abstract translation: 电动机速度控制系统包括电动机，控制模块和显示模块。 电动机包括转子和定子。 转子包括至少一个感应转子部分。 定子包括至少一个感应定子部分。 感应转子部分对应于感应定子部分。 控制模块电连接到转子和定子。 控制模块控制感应转子部分的感应转子电流和感应定子端口的感应定子电流以产生转子速度。 当转子速度达到预定值时，控制模块根据转子的转动惯量和感应定子电流减小或关闭感应转子电流，以将转子速度保持在预定值。 显示模块显示转子速度和可变电流。

公开(公告)号：US20150194921A1

公开(公告)日：2015-07-09

申请号：US14590047

申请日：2015-01-06

Applicant: FANUC CORPORATION

Inventor： Shoutarou Hashimoto ,  Tadashi Okita

IPC: H02P25/02 ,  H02P23/06

CPC classification number: H02P25/02 ,  H02P21/08 ,  H02P21/10

Abstract: A motor control device that controls an exciting current and a torque current separately from each other, and drives an induction machine includes: a first exciting current command generating unit that generates a first exciting current command in accordance with a speed and torque command; a second exciting current command generating unit that includes a magnetic flux control unit generating a second exciting current command by using a difference between a first exciting current command and a magnetic flux estimation value, and a magnetic flux estimating unit generating a magnetic flux estimation value from the second exciting current command, the second exciting current command generating unit outputting a second exciting current command; and a switching unit that selects one of a first exciting current command and a second exciting current command in accordance with a control mode or external information.

Abstract translation: 一种控制励磁电流和转矩电流彼此分开并驱动感应电动机的电动机控制装置包括：第一励磁电流指令产生单元，其根据速度和转矩指令产生第一励磁电流指令; 第二励磁电流指令产生单元，其包括通过使用第一励磁电流指令和磁通量估计值之间的差产生第二励磁电流指令的磁通量控制单元和产生来自 所述第二励磁电流指令，所述第二励磁电流指令生成单元输出第二励磁电流指令; 以及根据控制模式或外部信息选择第一励磁电流指令和第二励磁电流指令之一的开关单元。

公开(公告)号：US08552672B2

公开(公告)日：2013-10-08

申请号：US13274914

申请日：2011-10-17

Applicant: Thomas John Bucella ,  Dave Sewhuk ,  Scott Mayne ,  Warren God

Inventor： Thomas John Bucella ,  Dave Sewhuk ,  Scott Mayne ,  Warren God

IPC: H02P6/14

CPC classification number: H02P25/04 ,  H02P6/34 ,  H02P7/04 ,  H02P25/02 ,  H02P25/024

Abstract: A motor drive for driving two-phase motors using a three-phase bridge output stage, and a method of operating the drive. The driven two-phase motor can be a two-phase bipolar motor (such as a hybrid stepping motor). The drive can also be configured so that a single output stage can be used to drive either two-phase or three-phase motors, with or without a feedback sensor. A reference return is provided from one of the three half-bridge output stages with each of the motor phase windings connected between the reference return and one of the other half-bridge outputs. The switches of each half-bridge are modulated so that current can be controlled in each of the two motor phase windings.

Abstract translation: 用于驱动使用三相桥式输出级的两相电动机的电动机驱动器以及驱动装置的操作方法。 驱动的两相电机可以是两相双极电机（如混合式步进电机）。 驱动器也可以进行配置，使单个输出级可用于驱动具有或不具有反馈传感器的两相或三相电机。 从三个半桥输出级之一提供参考回程，每个电动机相绕组连接在参考回路和其他半桥输出之一之间。 每个半桥的开关被调制，使得可以在两个电动机相绕组中的每一个中控制电流。

公开(公告)号：US08482243B2

公开(公告)日：2013-07-09

申请号：US13071932

申请日：2011-03-25

Applicant: Gerald K. Langreck

Inventor： Gerald K. Langreck

IPC: H02P1/50 ,  H02P6/00

CPC classification number: H02K11/30 ,  H02K1/148 ,  H02K1/2706 ,  H02K16/00 ,  H02K2213/06 ,  H02P25/02

Abstract: A high acceleration rotary actuator motor assembly is provided comprising a plurality of phase motor elements provided in tandem on a shaft, each phase element including a rotor carrying magnets which alternate exposed poles, the rotor being connected to the shaft and surrounded by a stator formed of a plurality of interconnected segmented stator elements having a contiguous winding to form four magnetic poles, the stator being in electrical communication with a phase electric drive unit, wherein each of the poles exert a magnetic force upon the magnets carried by the rotor when the poles are electrically charged by the phase electric drive unit. The rotors and magnets of each phase motor element are offset about the shaft from one another. In addition, the phase motor elements are electrically isolated from one another.

Abstract translation: 提供了一种高加速度旋转致动器电动机组件，其包括串联设置在轴上的多个相位电动机元件，每个相位元件包括承载磁体的转子，该磁体交替暴露的磁极，转子连接到轴并由定子形成 多个互连的分段定子元件，具有连续的绕组以形成四个磁极，所述定子与相电驱动单元电连通，其中每个磁极在由磁极承载的磁体上施加磁力时， 由相电驱动单元充电。 每相电动机元件的转子和磁体彼此相对于轴偏移。 此外，相电动机元件彼此电隔离。

公开(公告)号：US08378617B2

公开(公告)日：2013-02-19

申请号：US13024148

申请日：2011-02-09

Applicant: Jin-Woo Ahn ,  Dong-Hee Lee

Inventor： Jin-Woo Ahn ,  Dong-Hee Lee

IPC: H02P1/46

CPC classification number: H02P25/02

Abstract: Disclosed herein is a method of controlling the current of a high-speed Switched Reluctance Motor (SRM) using an inverter circuit including a first switching element, a second switching element, a first diode, a second diode and a reactor, wherein the first switching element and the first diode, the second diode and the second switching element are connected to a bridge circuit, and one end of the reactor is connected to the junction of the first switching element and the first diode, and the remaining end of the reactor is connected to the junction of the second diode and the second switching element; and excitation mode, free-wheeling mode-1, the excitation mode, and free-wheeling mode-2 are sequentially performed in a unit period T, and, when the control is terminated, demagnetization is performed.

Abstract translation: 这里公开了使用包括第一开关元件，第二开关元件，第一二极管，第二二极管和电抗器的逆变器电路来控制高速开关磁阻电动机（SRM）的电流的方法，其中第一开关 元件和第一二极管，第二二极管和第二开关元件连接到桥式电路，并且电抗器的一端连接到第一开关元件和第一二极管的接点，反应器的剩余端 连接到第二二极管和第二开关元件的结; 励磁模式，续流模式-1，励磁模式和续流模式-2在单位周期T中顺序进行，并且当控制终止时，执行退磁。

公开(公告)号：US08294317B2

公开(公告)日：2012-10-23

申请号：US12742057

申请日：2007-11-09

Applicant: Yoshihide Kamida ,  Yasuhiro Komatsu

Inventor： Yoshihide Kamida ,  Yasuhiro Komatsu

IPC: H02K21/12

CPC classification number: H02K21/14 ,  A61B5/0488 ,  A61B5/4893 ,  A61B8/00 ,  H02K1/2746 ,  H02K47/04 ,  H02K53/00 ,  H02K2201/12 ,  H02P25/02

Abstract: A unidirectionally-energized brushless DC motor includes a disk attached to a frame, a plurality of plate-like permanent magnets disposed on the disk at equal intervals around the disk, magnetic cores fixed to the frame according to the plurality of permanent magnets, windings each of which is wound around the magnetic core and to which DC power is supplied, a predetermined number of magnetic cores fixed to the frame, and windings each of which is wound around the magnetic core and connected to a power consumption device. The permanent magnets are located such that an angle formed by a straight line passing through the center of the disk and the center of the permanent magnet and a normal line in the center of a magnetic pole plane of the permanent magnet ranges from 0° to 60°.

Abstract translation: 单向通电的无刷直流电动机包括附接到框架的盘，围绕盘等间隔地设置在盘上的多个板状永磁体，根据多个永磁体固定到框架的磁芯，每个绕组 其被缠绕在磁芯上并且供应DC电力，固定在框架上的预定数量的磁芯，以及缠绕在磁芯上并连接到功率消耗装置的绕组。 永久磁铁的位置使得通过圆盘中心的直线和永磁体的中心与永久磁铁的磁极面的中心的法线形成的角度为0°至60° °。

公开(公告)号：US11967913B2

公开(公告)日：2024-04-23

申请号：US17742727

申请日：2022-05-12

Applicant: Exro Technologies Inc.

Inventor： Eric Hustedt

IPC: H02P25/18 ,  H02P23/28 ,  H02P25/02

CPC classification number: H02P23/28 ,  H02P25/02

Abstract: Disclosed is a series mode modulation configuration and a parallel voltage equivalent modulation configuration. In the series mode modulation configuration a unipolar modulation is utilized. Unipolar modulation utilizes a zero vector and produces a voltage across the load with a frequency factor of 2×. In the parallel voltage equivalent mode modulation configuration there are two H bridges driving two coils with identical current. The H bridges can advantageously be operated out of phase with one another (e.g., 180 out of phase with one another to interleave the currents to further reduce ripple current stress.