会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Power conversion circuit
    • 电源转换电路
    • US4835408A
    • 1989-05-30
    • US488547
    • 1983-04-06
    • William F. RayRex M. Davis
    • William F. RayRex M. Davis
    • H02M7/515H02M7/525H02P25/08
    • H02M7/525H02M7/5155H02P25/0925H02M2007/4811Y10T307/352Y10T307/43Y10T307/461
    • A multi-phase switched reluctance motor is driven from a tow-point d.v. supply (11) in which capacitors (12) and (13) are provided across the supply with their common point (14) constituting a third power supply point. The load windings W.sub.1, W.sub.3, W.sub.5 and W.sub.2, W.sub.4, W.sub.6 are connected in two different load circuits connected across the different capacitors. In order to prevent the voltage of the third point wandering because the currents in the the two load circuits are not the same, control means (21) can control the distribution of current between the various load windings by appropriate control of semi-conductor switches in the various load circuits.
    • PCT No.PCT / GB82 / 00261 Sec。 371日期:1983年4月6日 102(e)日期1983年4月6日PCT申请日1982年8月31日PCT公布。 第WO83 / 00961号公报 日期:1983年3月17日。多相开关磁阻电机由牵引点d.v驱动。 电源(12)和(13)的电源(11)跨越电源提供有构成第三电源点的公共点(14)。 负载绕组W1,W3,W5和W2,W4,W6连接在跨不同电容器连接的两个不同的负载电路中。 为了防止第三点的电压由于两个负载电路中的电流不相同而流动,控制装置(21)可以通过适当地控制半导体开关的控制来控制各种负载绕组之间的电流分布 各种负载电路。
    • 2. 发明授权
    • Reluctance electric motor drive systems
    • 磁阻电动机驱动系统
    • US4253053A
    • 1981-02-24
    • US890946
    • 1978-03-28
    • William F. RayRex M. Davis
    • William F. RayRex M. Davis
    • H02P27/02H02P7/00H02P25/08H02P27/06H02P7/36
    • H02P25/08H02P7/03
    • In a variable reluctance electric drive system motor the fractions of a cycle during which the winding inductance of a phase increases with movement in either direction are such that the motor is self starting in either direction. The timing of the power converter in relation to the cycle of inductance is such that the current increases from its minimum value to substantially its maximum value while the winding inductance is substantially at its minimum value and thereafter substantially decreases before the power converter disconnects the winding from the supply. This can be achieved by making the switch-on and commutation of current occur at predetermined positions so related to the variation of inductance that the peak current ip at maximum power and maximum speed, is greater than I, where I=E/(R+dL/dt), E is the supply voltage, R the winding resistance and dL/dt is the maximum rate of increase of inductance before the commutation point.
    • 在可变磁阻电动驱动系统电动机中,相位的绕组电感随着任一方向的运动而增加的周期的一部分使得电动机在任一方向上是自启动的。 功率转换器相对于电感周期的定时使得电流从其最小值增加到其最大值,同时绕组电感基本上处于其最小值,然后在功率转换器断开绕组之前基本上减小 供应。 这可以通过使电流的接通和换向在与最大功率和最大速度下的峰值电流ip大于I的电感变化相关的预定位置处实现,其中I = E /(R + dL / dt),E是电源电压,R是绕组电阻,dL / dt是换向点前电感的最大增加速率。
    • 4. 发明授权
    • Electric power converter circuit
    • 电力转换电路
    • US4563619A
    • 1986-01-07
    • US486954
    • 1983-04-06
    • Rex M. DavisWilliam F. Ray
    • Rex M. DavisWilliam F. Ray
    • H02M7/527H02P6/08H02P27/06H02P7/06
    • H02M7/527
    • A multi-phase switched variable-reluctance motor having a number of phase windings (A, B, C) each connected in series with at least one main thyristor (1,2,3,4,5,6) across a D.C. supply (V.sub.5) has commutating means (23) responsive to the current in the different windings, the angular position of the rotor, the state of the main thyristors, the motor speed, and the desired operating condition, to control the firing and commutation of the main thyristors. Two modes of operation described in detail are a chopping mode in which chopping is controlled independently in two adjacent phases at the same time, and a single pulse mode with free-wheeling.
    • PCT No.PCT / GB82 / 00262 Sec。 371日期:1983年4月6日 102(e)日期1983年4月6日PCT申请日1982年8月31日PCT公布。 公开号WO83 / 00962 日期:1983年3月17日。具有多个相绕组(A,B,C)的多相开关可变磁阻电动机,每个相绕组与至少一个主晶闸管(1,2,3,4,5, 6)跨越DC电源(V5)具有响应于不同绕组中的电流,转子的角位置,主晶闸管的状态,电动机速度和期望的操作条件的换向装置(23),以控制 主晶闸管的点火和换向。 详细描述的两种操作模式是同时在两个相邻相位中独立地控制斩波的斩波模式和具有续流的单脉冲模式。
    • 5. 发明授权
    • Variable reluctance motor systems
    • 可变磁阻电机系统
    • US4387326A
    • 1983-06-07
    • US187835
    • 1980-01-10
    • William F. RayRex M. Davis
    • William F. RayRex M. Davis
    • H02P23/00B60L11/18H02P25/08H02P27/06H02K29/02
    • B60L11/1807H02P25/089Y02T10/646Y02T10/648Y02T10/7005
    • A variable reluctance electric motor system includes a variable reluctance motor having a main winding for each phase and a power converter circuit including a main thyristor in series with each main winding connected across a direct voltage source from which the main windings are supplied sequentially with uni-directional current pulses, characterized by a commutating thyristor (16) for starving the main thyristor (12) of the current flowing through one main winding (11) while charging a capacitor unit (51,52) in one sense, and a commutating thyristor (26) for starving the main thyristor (22) of the next phase winding (21) of the current flowing through the next main winding (21) while charging the capacitor unit in the other sense. The arrangement is such that commutation of a main thyristor initiated by firing a commutating thyristor and terminated when this commutating thyristor ceases to conduct, leaves the commutating capacitor unit charged with the correct polarity and adequate voltage for the commutation of the next main thyristor in the conducting sequence.
    • PCT No.PCT / GB79 / 00078 Sec。 371日期1980年1月10日 102(e)日期1980年1月10日PCT申请日1979年5月24日PCT公布。 出版物WO79 / 01132 日期:1979年12月27日。可变磁阻电动机系统包括具有每相的主绕组的可变磁阻电动机和电源转换器电路,电源转换器电路包括与跨过直流电压源连接的每个主绕组串联的主晶闸管, 绕组以单向电流脉冲依次提供,其特征在于,一个换向晶闸管(16),用于使流过一个主绕组(11)的电流的主晶闸管(12)挨饿,同时在一个电容器单元(51,52)中充电 感测和一个换向晶闸管(26),用于在另一方面对电容器单元进行充电,使流过下一个主绕组(21)的电流的下一个相绕组(21)的主晶闸管(22)挨饿。 这种布置使得通过点火换向晶闸管引发的主晶闸管的换向,并且当该换向晶闸管停止导通时终止,使整流电容器单元充电正确的极性和足够的电压,用于导通下一个主晶闸管的换向 序列。