Performance enhancement for motor field oriented control system
    1.
    发明申请
    Performance enhancement for motor field oriented control system 审中-公开
    电机磁场定向控制系统的性能提升

    公开(公告)号:US20060043923A1

    公开(公告)日:2006-03-02

    申请号:US10931274

    申请日:2004-08-31

    IPC分类号: H02P7/36

    摘要: A motor controller of the sort having both a transformation function for transforming three-phase feedback information into two components, and then changing an error signal for each of the two components back into three-phase correction numbers is provided with an ARCTAN correction function. The ARCTAN correction function takes in the time derivative of the changing angular position of the motor rotor, and creates a correction factor that is supplied back to the transformation function for changing the two error signals back into three. By supplying this correction ARCTAN function, the control eliminates a disturbance that may have occurred in the prior art at higher frequencies wherein both of the control loops for the two components needed to come into play to correct an error on either of the two loops.

    摘要翻译: 具有用于将三相反馈信息变换为两个分量的变换功能,然后将两个分量中的每一个的误差信号改变回三相校正数的电动机控制器具有ARCTAN校正功能。 ARCTAN校正功能花费了电动机转子角位置变化的时间导数,并产生了一个补偿因子,该系数被提供给变换功能,将两个误差信号改为三个。 通过提供该校正ARCTAN功能,该控制消除了现有技术中可能在较高频率发生的干扰,其中两个组件的两个控制回路都需要进行播放以校正两个回路中的任一个的错误。

    Unbalanced current detection
    2.
    发明申请
    Unbalanced current detection 有权
    不平衡电流检测

    公开(公告)号:US20070085526A1

    公开(公告)日:2007-04-19

    申请号:US11254128

    申请日:2005-10-19

    申请人: Donal Baker

    发明人: Donal Baker

    IPC分类号: G01R25/00

    CPC分类号: H02H7/09 G01R29/16

    摘要: An unbalanced current detection circuit determines when a multi-phase, normally-balanced load is unbalanced. The detection circuit of the present invention includes a plurality of current-squaring circuits, each squaring a sensed current of one of the phases. A summing circuit produces a sum of the squares of the currents. If the load is balanced, this sum should be relatively constant, perhaps changing only slowly over time, with little or no ripple from that relatively constant value. In an unbalanced current condition, the sum of the current squares would consist of an average (dc) component plus a ripple (ac) component. If the amplitude of the ripple current exceeds a threshold, it is determined that the currents are unbalanced.

    摘要翻译: 不平衡电流检测电路确定多相正常平衡负载何时不平衡。 本发明的检测电路包括多个电流平方电路,每个电路平均一个相的感测电流。 求和电路产生电流的平方和。 如果负载平衡,这个总和应该是相对恒定的,可能随着时间的推移变化很小,几乎没有或没有相对恒定值的波动。 在不平衡电流条件下,电流平方和将由平均(直流)分量加波纹(ac)分量组成。 如果纹波电流的幅度超过阈值,则确定电流不平衡。

    Electric engine start with two motors and single motor drive
    3.
    发明申请
    Electric engine start with two motors and single motor drive 有权
    电动发动机由两台电机和单个电机驱动启动

    公开(公告)号:US20070040383A1

    公开(公告)日:2007-02-22

    申请号:US11205699

    申请日:2005-08-17

    IPC分类号: F02N11/04 H02P9/04

    CPC分类号: F02N11/04 F02N11/006

    摘要: An electrical starter-generator system includes a first starter-generator and a second starter-generator. A single drive controls both the first starter-generator and the second starter-generator such that their electrical current and power inputs are minimized and balanced.

    摘要翻译: 电起动器 - 发电机系统包括第一起动发电机和第二起动发电机。 单个驱动器控制第一起动发电机和第二起动发电机,使得它们的电流和功率输入被最小化和平衡。

    Elimination of DC ground fault currents in auto-transformer rectifier unit
    4.
    发明申请
    Elimination of DC ground fault currents in auto-transformer rectifier unit 审中-公开
    消除自动变压器整流单元中的直流接地故障电流

    公开(公告)号:US20070086125A1

    公开(公告)日:2007-04-19

    申请号:US11253325

    申请日:2005-10-19

    申请人: Donal Baker

    发明人: Donal Baker

    IPC分类号: H02H9/08

    CPC分类号: H02M7/06 H02M1/32

    摘要: An auto-transformer rectifier unit includes circuitry for eliminating DC ground faults. Generally, a capacitor is added in series between each of the input AC feeder lines. Consequently a fault on a DC rail to ground or a faulted diode will prevent or eliminate a DC current ground fault condition entirely. It will, however, retain a significant (detectable) increase in current for differential faults, which would let the protective device trip the unit off line. Large magnitude fault currents are also eliminated.

    摘要翻译: 自动变压器整流单元包括用于消除直流接地故障的电路。 通常,在每个输入AC馈线之间串联地加入电容器。 因此,直流电对地或故障二极管的故障将完全阻止或消除直流电流接地故障状态。 然而,对于差分故障,它将保持电流的显着(可检测)增加,这将使保护装置脱离单元。 也消除了大幅度故障电流。

    Parallel inverter motor drive with improved waveform and reduced filter requirements

    公开(公告)号:US20060043922A1

    公开(公告)日:2006-03-02

    申请号:US10926163

    申请日:2004-08-25

    IPC分类号: H02P5/28

    摘要: An improved motor controller for driving polyphase alternating current dynamoelectric machines from a direct current power source that employs two inverter bridges controlled with a state vector modulation symmetrical state sequence that has a desired “chop” frequency so that each of their outputs produce a fundamental component that is exactly in phase but chop frequency components that are exactly 180 degrees out of phase with each other, with their outputs combined through respective interphase transformers to average the potentials of the chop frequency components.

    Electric engine start with two motors and single motor drive
    6.
    发明授权
    Electric engine start with two motors and single motor drive 有权
    电动发动机由两台电机和单个电机驱动启动

    公开(公告)号:US07755208B2

    公开(公告)日:2010-07-13

    申请号:US11753645

    申请日:2007-05-25

    IPC分类号: F02N11/00

    CPC分类号: F02N11/04 F02N11/006

    摘要: An electrical starter-generator system includes a first starter-generator and a second starter-generator. A single drive controls both the first starter-generator and the second starter-generator such that their electrical current and power inputs are minimized and balanced.

    摘要翻译: 电起动器 - 发电机系统包括第一起动发电机和第二起动发电机。 单个驱动器控制第一起动发电机和第二起动发电机,使得它们的电流和功率输入被最小化和平衡。

    Rectifier open diode detection
    8.
    发明申请
    Rectifier open diode detection 审中-公开
    整流二极管开路检测

    公开(公告)号:US20070063708A1

    公开(公告)日:2007-03-22

    申请号:US11230829

    申请日:2005-09-20

    申请人: Donal Baker

    发明人: Donal Baker

    IPC分类号: G01R31/08

    CPC分类号: G01R31/40

    摘要: An open diode detection circuit for use with an auto-transformer rectifier unit includes a plurality of first diodes each connecting one of a plurality of transformer nodes to a detector rail. A comparator compares the detector rail to a rectifier rail, which is also connected by a plurality of diodes to the plurality of transformer nodes. If one of the diodes in the rectifier circuit fails, the voltage on the rail in the rectifier circuit will differ from the voltage on the rail in the detection circuit. This difference will exceed a threshold that is detected by a comparator, which then generates an indication that a diode has failed.

    摘要翻译: 与自动变压器整流器单元一起使用的开路二极管检测电路包括多个第一二极管,每个第一二极管将多个变压器节点之一连接到检测器导轨。 比较器将检测器轨与整流器轨进行比较,整流器轨也通过多个二极管连接到多个变压器节点。 如果整流电路中的二极管之一发生故障,则整流电路中的导轨上的电压将与检测电路中的导轨上的电压不同。 该差异将超过由比较器检测到的阈值,该比较器然后产生二极管失败的指示。

    ELECTRIC ENGINE START WITH TWO MOTORS AND SINGLE MOTOR DRIVE
    9.
    发明申请
    ELECTRIC ENGINE START WITH TWO MOTORS AND SINGLE MOTOR DRIVE 有权
    电动发动机启动与两个电机和单个电机驱动

    公开(公告)号:US20100013222A1

    公开(公告)日:2010-01-21

    申请号:US11753645

    申请日:2007-05-25

    IPC分类号: F02N11/04

    CPC分类号: F02N11/04 F02N11/006

    摘要: An electrical starter-generator system includes a first starter-generator and a second starter-generator. A single drive controls both the first starter-generator and the second starter-generator such that their electrical current and power inputs are minimized and balanced.

    摘要翻译: 电起动器 - 发电机系统包括第一起动发电机和第二起动发电机。 单个驱动器控制第一起动发电机和第二起动发电机,使得它们的电流和功率输入被最小化和平衡。

    Ground fault detector for generator feeder
    10.
    发明申请
    Ground fault detector for generator feeder 审中-公开
    发电机馈线接地故障检测器

    公开(公告)号:US20060044710A1

    公开(公告)日:2006-03-02

    申请号:US10925056

    申请日:2004-08-24

    IPC分类号: H02H7/06

    CPC分类号: H02H3/162 H02H7/06

    摘要: A generator feeder fault detection system includes a ground fault detector transformer that monitors the sum of forward and return currents from and to a generator. During normal operation, the sum of the currents in the ground fault detector equals zero. If there is a fault, however, the ground fault detector will detect a non-zero current sum. Because the ground fault detector measures the sum of the currents traveling through it, the current sensor in the detection circuit can be selected to measure small amounts of current and does not need to have a high threshold, even for generators that output high levels of current.

    摘要翻译: 发电机馈线故障检测系统包括接地故障检测变压器,其监测来自发电机和发电机的正向和反向电流之和。 在正常工作期间,接地故障检测器中的电流之和等于零。 然而,如果有故障,接地故障检测器将检测到非零电流和。 由于接地故障检测器测量通过它的电流的总和,所以可以选择检测电路中的电流传感器来测量少量电流,并且不需要具有高阈值,即使对于输出高电流电流的发电机 。