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    • 2. 发明授权
    • Method and apparatus for increasing the maximum speed of rotation of a
synchronous machine with a given excitation field strength and terminal
voltage
    • 用于以给定的励磁场强度和端子电压增加同步电机的最大转速的方法和装置
    • US4460860A
    • 1984-07-17
    • US458040
    • 1983-01-14
    • Gunter SchwesigHartmut VogtErich VossHans-Hermann Zander
    • Gunter SchwesigHartmut VogtErich VossHans-Hermann Zander
    • H02P6/06H02P21/00H02P21/06H02P25/03H02P5/40
    • H02P21/06H02P21/0003H02P25/03H02P2207/05
    • An apparatus and method for increasing the maximum speed of rotation of a synchronous machine having constant excitation field strength is disclosed. The synchronous machine is preceded by a converter, which has an adjusted current reference value as an input. The adjusted current reference value comprises an active-current reference value and a reactive-current reference value. For actual speeds n.sub.ist, the absolute value .vertline.n.sub.ist .vertline. of which is above a predetermined value n.sub.o, the amplitude of the active-current reference value is limited to a value which is inversely proportional to the factor .vertline.n.sub.ist .vertline./n.sub.o. The value n.sub.o is a predetermined speed at which the sum of the magnet wheel voltage of the synchronous machine and the voltage drop in the stator winding is maximally equal to the largest possible output voltage of the converter. To obtain the adjusted current reference value, a reactive-current reference value shifted 90.degree. relative to the active-current reference value is vectorially added to the active-current reference value, the amplitude of the reactive-current reference value being proportional to the factor (1-n.sub.o /.vertline.n.sub.ist .vertline.). A reactive current is thus generated in the machine. The voltage drop across the reactance of the synchronous machine caused by this reactive current is 180.degree. out of phase with the speedproportional magnet-wheel voltage. The magnet wheel voltage can therefore be increased beyond the terminal voltage, so that the speed of rotation of the machine can be increased.
    • 公开了一种用于增加具有恒定的励磁场强的同步电机的最大转速的装置和方法。 同步电机的前面是一个转换器,它有一个调整的电流参考值作为输入。 经调整的电流参考值包括有功电流参​​考值和无功电流参考值。 对于实际速度nist,其绝对值| nist|高于预定值no,有效电流参考值的幅度被限制为与因子| nist| / no成反比的值。 值no是同步电机的磁轮电压和定子绕组中的电压降之和最大等于转换器的最大可能输出电压的预定速度。 为了获得调整后的电流基准值,相对于有功电流基准值偏移90°的无功电流基准值被矢量地加到有功电流参​​考值,无功电流参考值的幅度与因子成比例 (1-no / |nist|)。 因此在机器中产生无功电流。 由无功电流引起的同步电机电抗的电压降与速比成比例的磁轮电压相差180°。 因此,磁轮电压可以增加超过端子电压,从而可以增加机器的旋转速度。
    • 3. 发明授权
    • Stator for an electric machine excited by permanent magnets
    • 由永磁体激发的电机的定子
    • US4412145A
    • 1983-10-25
    • US343111
    • 1982-01-27
    • Erich VossHorst Grafenschnell
    • Erich VossHorst Grafenschnell
    • H02K23/04H02K1/17H02K21/26
    • H02K1/17
    • Arcuate permanent magnets are inserted into the bore hole of a stator intended for use in an electric machine which is excited by permanent magnets. Spring elements, inserted into recesses in the wall of the bore between the magnets, have spring arms which are connected to each other via a back part and which rest against axially extending lateral edges of the permanent magnets. To insure retention of the permanent magnets against high mechanical shock stresses without connecting the spring elements to the stator, the spring elements are provided with extensions, formed on their back parts, which frictionally engage undercuts in the recesses. The spring arms themselves extend around the lateral edges of the permanent magnets in a form-locking manner.
    • 弧形永久磁铁被插入到用于由永磁体激励的电机中的定子的钻孔中。 插入在磁体之间的孔壁的凹部中的弹簧元件具有通过后部彼此连接并且抵靠永磁体的轴向延伸的侧边缘的弹簧臂。 为了确保在不将弹簧元件连接到定子的情况下保持永磁体抵抗高机械冲击应力,弹簧元件设置有延伸部,形成在其后部部分上,该凹部与凹部中的底切部摩擦接合。 弹簧臂本身以形状锁定的方式围绕永磁体的侧边缘延伸。
    • 4. 发明授权
    • Magnetic multi-pole arrangement of the nth order
    • 磁性多极排列的n阶
    • US4633208A
    • 1986-12-30
    • US614917
    • 1984-05-29
    • Erich VossHermann Wollnik
    • Erich VossHermann Wollnik
    • H01J37/141G21K1/08G21K1/093H01J3/20H01J29/64H01J37/10H05H7/00H05H7/04H01F7/00H01F1/00
    • G21K1/08H01J3/20H05H7/04
    • An nth order magnetic multipole arrangement for influencing the trajectory of charged particles is disclosed. In order to avoid using structural parts that are manufactured separately, it has been found to provide as the multipole arrangement, the stator of a multi-pole alternating current machine, the stator winding of which is fed by a voltage source in such a way that the produce of current and number of turns (number of ampere turns) in a groove or group of grooves disposed under the azimuth angle .theta. is proportional to cos (n .theta.), n corresponding to the order (order number) of the multipole arrangement, and the factors a and b being taken from the ratio b/a which states the orientation of the multipole relative to the azmith angle .theta.=0. As the multipole arrangement there may be provided also a stator, excited by permanent magnets, of a direct current machine.
    • 公开了用于影响带电粒子的轨迹的第n级磁多极装置。 为了避免使用单独制造的结构部件,已经发现,提供多极装置,多极交流电机的定子,其定子绕组由电压源馈送,使得 设置在方位角θ下方的槽或一组槽中的电流和匝数(安培匝数)的产生与对应于多极装置的顺序(顺序号)的cos(nθ),n成正比, 并且因子a和b取自表示多极相对于立方角θ= 0的取向的比率b / a。 作为多极装置,还可以设置直流电机的由永磁体激励的定子。