SYSTEM AND METHOD FOR NON-SINUSOIDAL CURRENT WAVEFORM EXCITATION OF ELECTRICAL GENERATORS
    1.
    发明申请
    SYSTEM AND METHOD FOR NON-SINUSOIDAL CURRENT WAVEFORM EXCITATION OF ELECTRICAL GENERATORS 有权
    用于非发电机电流波形发生器的系统和方法

    公开(公告)号:US20110320051A1

    公开(公告)日:2011-12-29

    申请号:US12826076

    申请日:2010-06-29

    IPC分类号: H02P9/08 H02P9/14

    摘要: An electrical generator includes a stator having fractional-slot concentrated windings and a rotor having field windings. A drive is provided having a circuit to control current flow to the field windings and a controller to input an initial DC field current demand to the circuit to cause the circuit to output an initial DC field current representative of a DC field current demand that would cause an electrical generator having sinusoidal stator windings to output a desired AC power. The controller receives feedback on the magnetic field generated by the initial DC field current, isolates an ideal fundamental component of the magnetic field based on the feedback and to generate a modified DC field current demand, and inputs the modified DC field current demand to the circuit, thereby causing the circuit to output an instantaneous non-sinusoidal current to the field windings to generate a sinusoidal rotating air gap magnetic field.

    摘要翻译: 发电机包括具有分数槽集中绕组的定子和具有励磁绕组的转子。 提供了一种驱动器,其具有控制到场绕组的电流的电路和控制器,以向电路输入初始DC场电流需求,以使电路输出代表将导致的DC场电流需求的初始DC场电流 具有正弦定子绕组的发电机,以输出所需的交流电力。 控制器接收由初始直流场电流产生的磁场的反馈,根据反馈隔离出磁场的理想基波分量,并产生修正的直流场电流需求,并将修正后的直流场电流需求输入到电路 从而使电路向场绕组输出瞬时非正弦电流以产生正弦旋转气隙磁场。

    Rotor section containment with steel punched star
    2.
    发明授权
    Rotor section containment with steel punched star 失效
    转子部分装有钢冲孔

    公开(公告)号:US6008562A

    公开(公告)日:1999-12-28

    申请号:US309427

    申请日:1999-05-11

    IPC分类号: H02K1/28 H02K1/00

    摘要: A rotor assembly for a synchronous reluctance machine has a plurality of steel punched star-shaped supports secured along a shaft at spaced locations for retaining a plurality of laminated rotor sections. The star-shaped supports have four equiangularly spaced arms having arcuate valleys disposed therebetween that define a plurality of channels for receiving the rotor sections. The rotor sections have a plurality of linearly-disposed apertures for receiving mounting members that extend radially from the valleys of the star-shaped supports. The portions of free ends of the mounting members that extend through the apertures, are stamped or formed to secure the rotor sections to the star-shaped supports. A rotor bar may be disposed within a concave cavity defined by the rotor sections to reduce audible noise produced as the rotor rotates at a high rate of speed.

    摘要翻译: 用于同步磁阻电机的转子组件具有多个沿冲压轴固定的钢冲孔星形支撑件,用于保持多个层叠的转子部分。 星形支撑件具有四个等角间隔的臂,其间设置有弓形谷,其限定用于接收转子部分的多个通道。 转子部分具有多个线性布置的孔,用于接收从星形支撑件的谷部径向延伸的安装构件。 安装构件的延伸穿过孔的自由端的部分被冲压或形成以将转子部分固定到星形支撑件。 转子杆可以设置在由转子部分限定的凹腔内,以减小当转子以高速度旋转时产生的可听见的噪声。

    Rotor for a synchronous reluctance machine
    3.
    发明授权
    Rotor for a synchronous reluctance machine 失效
    转子用于同步磁阻电机

    公开(公告)号:US6064134A

    公开(公告)日:2000-05-16

    申请号:US122448

    申请日:1998-07-24

    CPC分类号: H02K1/246 H02K1/30 H02K19/103

    摘要: A rotor assembly for a synchronous reluctance machine has a plurality of steel punched star-shaped supports secured along a shaft at spaced locations for retaining a plurality of laminated rotor sections. The star-shaped supports have four equiangularly spaced arms having arcuate valleys disposed therebetween that define a plurality of channels for receiving the rotor sections. The rotor sections are secured to the star-shaped core by a plurality of bands fastened circumferentially around the rotor. A plurality of grooves disposed circumferentially around the rotor receive and retain the bands in place. A rotor bar and arcuate spring may be disposed within a concave cavity defined by the rotor sections to reduce audible noise produced as the rotor rotates at a high rate of speed and provide added compression on the rotor sections to the core. The rotor sections also include a dimpled separator of predetermined thickness disposed between the laminate sheets to optimize the machine. The separator is a steel sheet having a plurality of dimples that define the thickness of the separator. This results in a high speed axially-laminated synchronous reluctance rotor running at high speeds without any bolts or end caps in the rotor.

    摘要翻译: 用于同步磁阻电机的转子组件具有多个沿冲压轴固定的钢冲孔星形支撑件,用于保持多个层叠的转子部分。 星形支撑件具有四个等角间隔的臂,其间设置有弓形谷,其限定用于接收转子部分的多个通道。 转子部分通过周向围绕转子固定的多个带固定到星形芯。 围绕转子周向设置的多个槽接收并将带保持在适当位置。 转子杆和弧形弹簧可以设置在由转子部分限定的凹腔内,以减小当转子以高速度旋转时产生的可听到的噪声,并且在转子部分上向芯提供额外的压缩。 转子部分还包括设置在层压片之间的预定厚度的凹凸分离器,以优化机器。 隔板是具有限定隔板厚度的多个凹坑的钢板。 这导致高速轴向层压的同步磁阻转子在高速下运行而没有转子中的任何螺栓或端盖。

    System and method for non-sinusoidal current waveform excitation of electrical generators
    4.
    发明授权
    System and method for non-sinusoidal current waveform excitation of electrical generators 有权
    发电机非正弦电流波形激励的系统和方法

    公开(公告)号:US08901896B2

    公开(公告)日:2014-12-02

    申请号:US12826076

    申请日:2010-06-29

    IPC分类号: H02P9/08 H02P9/10 H02P9/14

    摘要: An electrical generator includes a stator having fractional-slot concentrated windings and a rotor having field windings. A drive is provided having a circuit to control current flow to the field windings and a controller to input an initial DC field current demand to the circuit to cause the circuit to output an initial DC field current representative of a DC field current demand that would cause an electrical generator having sinusoidal stator windings to output a desired AC power. The controller receives feedback on the magnetic field generated by the initial DC field current, isolates an ideal fundamental component of the magnetic field based on the feedback and to generate a modified DC field current demand, and inputs the modified DC field current demand to the circuit, thereby causing the circuit to output an instantaneous non-sinusoidal current to the field windings to generate a sinusoidal rotating air gap magnetic field.

    摘要翻译: 发电机包括具有分数槽集中绕组的定子和具有励磁绕组的转子。 提供了一种驱动器,其具有控制到场绕组的电流的电路和控制器,以向电路输入初始DC场电流需求,以使电路输出代表将导致的DC场电流需求的初始DC场电流 具有正弦定子绕组的发电机,以输出所需的交流电力。 控制器接收由初始直流场电流产生的磁场的反馈,根据反馈隔离出磁场的理想基波分量,并产生修正的直流场电流需求,并将修正后的直流场电流需求输入到电路 从而使电路向场绕组输出瞬时非正弦电流以产生正弦旋转气隙磁场。

    System and method for non-sinusoidal current waveform excitation of electrical machines
    5.
    发明授权
    System and method for non-sinusoidal current waveform excitation of electrical machines 有权
    电机非正弦电流波形激励的系统和方法

    公开(公告)号:US08222855B2

    公开(公告)日:2012-07-17

    申请号:US12549437

    申请日:2009-08-28

    IPC分类号: H02P6/10

    CPC分类号: H02P29/50 Y02T10/7258

    摘要: A system and method for exciting an electrical machine with instantaneous non-sinusoidal current waveforms is disclosed. The system includes an inverter that controls current flow and terminal voltages in an electrical machine. The controller is further programmed to receive feedback on an air gap magnetic field in the electrical machine generated by an initial sinusoidal current demand, generate a non-sinusoidal current demand based on received air gap magnetic field feedback, and input the non-sinusoidal current demand to the inverter, thereby causing the inverter to output a non-sinusoidal current.

    摘要翻译: 公开了一种用瞬时非正弦电流波形激励电机的系统和方法。 该系统包括控制电机中的电流和端电压的逆变器。 控制器进一步被编程为接收由初始正弦电流需求产生的电机中的气隙磁场的反馈,基于接收的气隙磁场反馈产生非正弦电流需求,并输入非正弦电流需求 到逆变器,从而使逆变器输出非正弦电流。

    Grain oriented composite soft magnetic structure
    7.
    发明授权
    Grain oriented composite soft magnetic structure 失效
    晶粒取向复合软磁结构

    公开(公告)号:US5898253A

    公开(公告)日:1999-04-27

    申请号:US876725

    申请日:1997-06-16

    CPC分类号: H02K15/03 Y10T29/49012

    摘要: A soft magnetic structure substantially comprised of a plurality of magnetic field carrying particles molded and retained in a predetermined shape, bonded in that shape by an insulating binding agent, wherein said particles have grain alignment substantially parallel to a preferred direction, and wherein said preferred direction is parallel to a direct axis providing the structure with a high direct axis to quadrature axis reactance ratio.

    摘要翻译: 一种软磁结构,其基本上由多个成型并保持为预定形状的磁场承载颗粒组成,通过绝缘粘合剂以该形状粘合,其中所述颗粒具有基本平行于优选方向的晶粒取向,并且其中所述优选方向 平行于直轴,为结构提供高直轴与正交轴电抗比。

    High-speed self-cascaded electric machine
    8.
    发明授权
    High-speed self-cascaded electric machine 有权
    高速自级联电机

    公开(公告)号:US08115434B2

    公开(公告)日:2012-02-14

    申请号:US12790349

    申请日:2010-05-28

    IPC分类号: H02P23/12

    摘要: An electric machine is disclosed comprising a first energy source, a second energy source, and a stator which comprises a first set of windings and a second set of windings. The electric machine has a rotor and a controller, the controller configured to control the first energy source to supply a first current to the first set of windings and control the second energy source to supply a second current to the second set of windings. The controller also detects an angular position of the rotor, detects the first current, detects the second current, and determines an optimum phase shift angle of the first current based on the angular position of the rotor, the first current, and the second current. The controller controls the first energy source based on the optimum phase shift angle to modify the first current supplied to the first set of windings.

    摘要翻译: 公开了一种包括第一能量源,第二能量源和定子的电机,其包括第一组绕组和第二组绕组。 电机具有转子和控制器,该控制器被配置为控制第一能量源以向第一组绕组提供第一电流并且控制第二能量源以向第二组绕组提供第二电流。 控制器还检测转子的角度位置,检测第一电流,检测第二电流,并且基于转子的角位置,第一电流和第二电流确定第一电流的最佳相移角。 控制器基于最佳相移角控制第一能量源,以修改提供给第一组绕组的第一电流。

    SYSTEM AND METHOD FOR NON-SINUSOIDAL CURRENT WAVEFORM EXCITATION OF ELECTRICAL MACHINES
    9.
    发明申请
    SYSTEM AND METHOD FOR NON-SINUSOIDAL CURRENT WAVEFORM EXCITATION OF ELECTRICAL MACHINES 有权
    非机械电流波形激励电机的系统与方法

    公开(公告)号:US20110050151A1

    公开(公告)日:2011-03-03

    申请号:US12549437

    申请日:2009-08-28

    IPC分类号: H02P6/10

    CPC分类号: H02P29/50 Y02T10/7258

    摘要: A system and method for exciting an electrical machine with instantaneous non-sinusoidal current waveforms is disclosed. The system includes an inverter that controls current flow and terminal voltages in an electrical machine and a controller programmed to input an initial sinusoidal current demand to the inverter, thereby causing the inverter to output an initial sinusoidal input current. The controller is further programmed to receive feedback on an air gap magnetic field in the electrical machine generated by the initial sinusoidal current demand, determine an instantaneous fundamental component and instantaneous harmonic components of the air gap magnetic field, apply a correction to the instantaneous fundamental component of the air gap magnetic field to generate an ideal fundamental component, generate a non-sinusoidal current demand based on the ideal fundamental component, and input the non-sinusoidal current demand to the inverter, thereby causing the inverter to output a non-sinusoidal current.

    摘要翻译: 公开了一种用瞬时非正弦电流波形激励电机的系统和方法。 该系统包括控制电机中的电流和终端电压的逆变器,以及被编程为向逆变器输入初始正弦电流需求的控制器,从而使逆变器输出初始正弦输入电流的逆变器。 控制器还被编程为接收由初始正弦电流需求产生的电机中的气隙磁场的反馈,确定气隙磁场的瞬时基波分量和瞬时谐波分量,对瞬时基波分量应用校正 的气隙磁场产生理想的基波分量,基于理想的基波分量产生非正弦电流需求,并向逆变器输入非正弦电流需求,从而使逆变器输出非正弦电流 。

    Rotor section containment with steel punched star

    公开(公告)号:US5929551A

    公开(公告)日:1999-07-27

    申请号:US122447

    申请日:1998-07-24

    IPC分类号: H02K1/28 H02K1/00

    摘要: A rotor assembly for a synchronous reluctance machine has a plurality of steel punched star-shaped supports secured along a shaft at spaced locations for retaining a plurality of laminated rotor sections. The star-shaped supports have four equiangularly spaced arms having arcuate valleys disposed therebetween that define a plurality of channels for receiving the rotor sections. The rotor sections have a plurality of linearly-disposed apertures for receiving mounting members that extend radially from the valleys of the star-shaped supports. The portions of free ends of the mounting members that extend through the apertures, are stamped or formed to secure the rotor sections to the star-shaped supports. A rotor bar may be disposed within a concave cavity defined by the rotor sections to reduce audible noise produced as the rotor rotates at a high rate of speed.