公开(公告)号：US20180041041A1

公开(公告)日：2018-02-08

申请号：US15366555

申请日：2016-12-01

Applicant: Rolls-Royce North American Technologies Inc.

Inventor： Mark Jon Blackwelder ,  Paul M. Rancuret

IPC: H02J3/40

CPC classification number: H02J3/40 ,  H02P1/46 ,  H02P9/00 ,  H02P11/06

Abstract: Methods and systems for load alignment assistance are provided. An alignment current may be provided with a partial power converter through an n-phase supply line to a synchronous alternating current (AC) motor during a startup of a synchronous AC grid. The synchronous AC motor may receive polyphase AC power through the n-phase supply line from the synchronous AC grid during the startup. The partial power converter may be powered by a power source isolated from the synchronous AC grid. The alignment current may be controlled such that the alignment current causes a rotor of the synchronous AC motor to align with a rotor of a generator that powers the synchronous AC grid.

公开(公告)号：US20120206112A1

公开(公告)日：2012-08-16

申请号：US12931873

申请日：2011-02-14

Applicant: John Kissane

Inventor： John Kissane

IPC: H02P11/06

CPC classification number: H02P11/06

Abstract: The invention described above is a method of producing high voltage alternating current electricity for use in the electrolysis of liquid. The advantages of using high voltage alternating current over just direct current are that there are resonant frequencies for functional groups in any chemical. By using high voltage alternating current instead of just direct current new pathways might be found to produce chemicals. Possibly even the production of synthetic fuels. My invention is a tool for use in this experimentation. The high voltage oscilloscope provides for means of controlling both frequency and voltage at a specific test site.

Abstract translation: 上述发明是生产用于电解液体的高压交流电的方法。 在直流电流下使用高压交流电的优点在于，在任何化学品中存在功能组的共振频率。 通过使用高压交流电而不是直接的新途径可能会发现生产化学品。 甚至可能生产合成燃料。 我的发明是在这个实验中使用的工具。 高电压示波器提供了在特定测试地点控制频率和电压的方法。

公开(公告)号：US20120146437A1

公开(公告)日：2012-06-14

申请号：US13315019

申请日：2011-12-08

Applicant: Kent Kernahan

Inventor： Kent Kernahan

IPC: H02K13/00

CPC classification number: H02K47/30 ,  H02K7/025 ,  H02K7/108 ,  H02K7/14 ,  H02P11/06

Abstract: Methods, apparatus and systems provide a rotary three-phase to two-phase converter. The converter may receive three phase electrical power in windings of a three phase induction motor. The motor may have a rotor and induction windings with three connections in parallel in a delta wiring configuration. Two of the connectors may be connected in parallel to a two phase load. In the various embodiments, switches may be controlled to optionally disconnect the load from the rotary converter. In various embodiments, the induction motor rotor may be free rotating, coupled to fly wheel or mechanically connected to a mechanical load.

Abstract translation: 方法，装置和系统提供一个旋转三相到两相转换器。 转换器可以在三相感应电动机的绕组中接收三相电力。 电动机可以具有三角形接线配置的具有并联的三个连接的转子和感应绕组。 两个连接器可以并联连接到两相负载。 在各种实施例中，可以控制开关以可选地将负载与旋转转换器断开连接。 在各种实施例中，感应电动机转子可以是自由旋转的，耦合到飞轮或机械连接到机械负载。

公开(公告)号：US4719560A

公开(公告)日：1988-01-12

申请号：US845569

申请日：1986-03-28

Applicant: Horace B. Ford

Inventor： Horace B. Ford

IPC: H02K47/30 ,  H02P11/06 ,  H02M5/32

CPC classification number: H02K47/30 ,  H02P11/06

Abstract: A rotary phase generator for generating 3 phase voltage is provided which can operate off of 230 or 460 volts A-C. Also provided is a rotary phase generator which has two groups of running capacitors for providing a stable voltage on the third phase at no load and light loads. In addition, a booster system is provided for a rotary phase generator to provide high starting torque to one or more of the motors operated on the rotary phase generator. A plurality of smaller rotary phase generators may be connected in parallel and started in time delay sequence to eliminate the heavy starting current when starting the system on one phase power.

Abstract translation: 提供了用于产生三相电压的旋转相位发生器，其可以操作230或460伏A-C。 还提供了一种旋转相位发生器，其具有两组运行电容器，用于在无负载和轻负载下在第三相上提供稳定的电压。 此外，为旋转相位发生器提供增压系统，以向在旋转相位发生器上操作的一个或多个电动机提供高起动转矩。 多个较小的旋转相位发生器可并联连接并以时间延迟顺序启动，以消除在一相功率下启动系统时的重起动电流。

公开(公告)号：US09327605B2

公开(公告)日：2016-05-03

申请号：US13884372

申请日：2011-11-07

Applicant: Robert Januschevski ,  Juergen Kett

Inventor： Robert Januschevski ,  Juergen Kett

IPC: B60L11/18

CPC classification number: B60L11/1811 ,  B60L11/1814 ,  B60L11/1816 ,  B60L2220/54 ,  H02J7/022 ,  H02M7/219 ,  H02M7/40 ,  H02P11/06 ,  H02P27/06 ,  Y02T10/641 ,  Y02T10/642 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T90/127 ,  Y02T90/14

Abstract: The present method relates to a method of charging a traction battery of a vehicle from an external AC power supply system. The traction battery is coupled, via an inverter, to an electric alternating-field machine such that the AC power supply can be connected to the phase windings of the alternating-field machine. The method includes a step of synchronizing the rotational speed of the alternating-field machine with the frequency of the AC power supply. Then the AC power supply is connected to the phase windings of the alternating-field machine and the inverter, which is electrically coupled to the alternating-field machine, is operated as a step-up converter.

Abstract translation: 本方法涉及从外部交流电源系统对车辆的牵引电池进行充电的方法。 牵引电池通过逆变器耦合到电动交变电机，使得交流电源可以连接到交变电机的相绕组。 该方法包括使交流电机的转速与交流电源的频率同步的步骤。 然后交流电源连接到交变电机的相绕组，电耦合到交流电机的逆变器作为升压转换器运行。

公开(公告)号：US20130317630A1

公开(公告)日：2013-11-28

申请号：US13477275

申请日：2012-05-22

Applicant: Steven E. Schulz ,  Michael J. Grimmer ,  Konstantin S. Majarov ,  William R. Cawthorne

Inventor： Steven E. Schulz ,  Michael J. Grimmer ,  Konstantin S. Majarov ,  William R. Cawthorne

IPC: G05B15/02

CPC classification number: H02P27/085 ,  H02P11/06 ,  H02P23/04

Abstract: Embodiments of the present disclosure relate to methods, systems and apparatus for implementing dithering in motor drive system for controlling operation of a multi-phase electric machine.

Abstract translation: 本公开的实施例涉及用于实现电动机驱动系统中的抖动以控制多相电机的操作的方法，系统和装置。

公开(公告)号：US20130193882A1

公开(公告)日：2013-08-01

申请号：US13756204

申请日：2013-01-31

Applicant: LSIS CO., LTD.

Inventor： Hong Min YUN

IPC: H02P23/02 ,  H02P27/06

CPC classification number: H02P23/02 ,  H02P3/00 ,  H02P5/74 ,  H02P11/06 ,  H02P27/06

Abstract: A method for controlling an inverter in a system including a load, a motor for driving the load, and an inverter for operating the motor comprises when a load amount of the load is reduced to below a sleep level, checking whether a time corresponding to a sleep delay has lapsed; when the load amount of the load is still below the sleep level even after the sleep delay, varying an operating frequency of the motor, and if there is no change in a feedback from the load in response to the variation in the operating frequency, controlling the inverter to enter a sleep mode.

Abstract translation: 一种用于控制包括负载，用于驱动负载的电动机和用于操作电动机的逆变器的系统中的逆变器的方法，包括当负载的负载量降低到低于睡眠水平时，检查对应于 睡眠延迟已经失效了 即使在睡眠延迟之后负载的负载量仍然低于睡眠水平，改变电动机的工作频率，并且如果响应于工作频率的变化而来自负载的反馈没有变化，则控制 变频器进入睡眠模式。

公开(公告)号：US4378587A

公开(公告)日：1983-03-29

申请号：US202757

申请日：1980-10-31

Applicant: James E. McClain ,  Howard L. Scott

Inventor： James E. McClain ,  Howard L. Scott

IPC: H02K47/20 ,  H02P11/06 ,  H02M5/32

CPC classification number: H02P11/06 ,  H02K47/20

Abstract: Disclosed is a frequency converter system for altering the frequency of a-c power supplied from a distribution network to a load, the system including a pair of mechanically coupled rotating alternating current machines, the alteration of the rate and direction of rotation of the prime mover altering the frequency of the power. A variable impedance network comprising saturable core reactors and connected in the rotor circuit of the prime mover is utilized to effect the change of rate and direction of prime mover rotation.

Abstract translation: 公开了一种变频器系统，用于改变从分配网络提供给负载的交流电力的频率，该系统包括一对机械耦合的旋转交流电机，改变原动机的转速和转向方向， 功率的频率。 包括饱和核心反应器并连接在原动机的转子回路中的可变阻抗网络用于实现原动机旋转速率和方向的变化。

公开(公告)号：US20180198396A1

公开(公告)日：2018-07-12

申请号：US15573360

申请日：2016-07-21

Applicant: Mitsubishi Electric Corporation

Inventor： Yoshitomo HAYASHI ,  Yoji TSUTSUMISHITA ,  Masaya HARAKAWA ,  Yuji NOJIRI

IPC: H02P11/06 ,  H02K47/04 ,  H02P9/10

CPC classification number: H02M7/217 ,  H02K47/04 ,  H02M5/4585 ,  H02M7/219 ,  H02M2001/0022 ,  H02M2001/327 ,  H02P9/107 ,  H02P11/06 ,  H02P27/06 ,  H02P29/027 ,  H02P29/032 ,  H02P2201/03

Abstract: A power regenerative converter, includes: a power module configured to include rectifiers and regenerative switches; a smoothing capacitor connected to direct-current power supply terminals, and that accumulates direct-current power during an alternating-current to direct-current conversion; a bus current detector that detects a bus current flowing between either of the direct-current power supply terminals and the smoothing capacitor; a power supply phase detector that detects a phase of an input power supply; a base drive signal generator that generates base drive signals that perform ON/OFF control of the regenerative switching elements based on a power supply phase detected by the power supply phase detection unit; a regeneration controller that performs a start and stop process of a power regenerative operation based on a detection result of the bus current detector and the base drive signals; and an overload detector that detects overload of a power regenerative converter based on the detection result of the bus current detector.

公开(公告)号：US07808201B2

公开(公告)日：2010-10-05

申请号：US11448614

申请日：2006-06-07

Applicant: Ana Borisavljevic

Inventor： Ana Borisavljevic

IPC: H02P6/00

CPC classification number: H02P11/06 ,  H02P21/24 ,  H02P2207/05

Abstract: A power converter circuit for providing maximum utilization of a DC bus voltage to a two-phase Permanent Magnet Synchronous Motor (PMSM) is disclosed. The circuit includes first, second, and third nodes, each node being the junction between series connected high and low side switches connected across a DC bus; a PMSM having first and second windings and a star point at which the first and second windings are coupled to each other, the first winding having a terminal connected to the first node, the second winding having a terminal connected to the second node, and the star point being connected to the third node; and a controller for performing a three-point Pulse Width Modulation (PWM) coupled to a gate of each switch.

Abstract translation: 公开了一种用于将DC总线电压最大程度地利用到两相永磁同步电动机（PMSM）的电力转换器电路。 该电路包括第一，第二和第三节点，每个节点是连接在直流总线上的串联连接的高端和低端交换机之间的连接点; 具有第一和第二绕组的PMSM和第一和第二绕组彼此耦合的星点，第一绕组具有连接到第一节点的端子，第二绕组具有连接到第二节点的端子，并且 星点连接到第三节点; 以及用于执行耦合到每个开关的门的三点脉宽调制（PWM）的控制器。