Controller for motor
    1.
    发明授权
    Controller for motor 有权
    电机控制器

    公开(公告)号:US08653771B2

    公开(公告)日:2014-02-18

    申请号:US13028990

    申请日:2011-02-16

    IPC分类号: H02P6/10

    CPC分类号: H02P21/05

    摘要: A controller for use with a motor including a stator, around which three-phase coils are wound, and a rotor, which includes a magnet functioning as a first magnetic pole and a salient pole of a core functioning as a second magnetic pole. The controller supplies the three-phase coils with excitation currents having a predetermined phase difference from one another to drive and rotate the rotor. The controller includes a current adjustment unit that adjusts a fundamental wave current using high-order currents for third order and ninth order components in a q-axis to reduce torque ripple. The excitation current is generated based on the fundamental wave current adjusted by the current adjustment unit.

    摘要翻译: 一种与电动机一起使用的控制器,其包括缠绕有三相线圈的定子和包括用作第一磁极的磁体和用作第二磁极的芯的凸极的转子。 控制器为三相线圈提供彼此具有预定相位差的励磁电流,以驱动和旋转转子。 该控制器包括电流调节单元,该电流调节单元使用q阶中的三阶和九阶分量的高次电流调节基波电流以减小转矩波动。 基于由电流调节单元调整的基波电流产生励磁电流。

    Traffic data collection technique
    2.
    发明授权
    Traffic data collection technique 失效
    交通数据采集技术

    公开(公告)号:US06519330B2

    公开(公告)日:2003-02-11

    申请号:US09772947

    申请日:2001-01-31

    IPC分类号: H04M1500

    CPC分类号: H04M15/00

    摘要: A network management system allowing traffic data collection not to overload switching equipment is disclosed. A schedule table has a plurality of entries, in which traffic data collection events for respective ones of traffic counters arc distributed at intervals. A traffic data collection processor sequentially accesses the entries of the schedule table and, when a traffic data collection event is registered in an accessed entry, a traffic data collection request is transmitted to a corresponding traffic counter.

    摘要翻译: 公开了允许交通数据收集不使交换设备过载的网络管理系统。 调度表具有多个条目,其中各个业务计数器的交通数据收集事件以间隔分布。 交通数据收集处理器顺序地访问调度表的条目,并且当业务数据收集事件被登记在访问的条目中时,业务数据收集请求被发送到对应的业务计数器。