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公开(公告)号：US4835408A
公开(公告)日：1989-05-30
申请号：US488547
申请日：1983-04-06
申请人： William F. Ray , Rex M. Davis
发明人： William F. Ray , Rex M. Davis
CPC分类号： H02M7/525 , H02M7/5155 , H02P25/0925 , H02M2007/4811 , Y10T307/352 , Y10T307/43 , Y10T307/461
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US5563488A
公开(公告)日：1996-10-08
申请号：US486939
申请日：1995-06-07
申请人： John M. Stephenson , William F. Ray
发明人： John M. Stephenson , William F. Ray
摘要： A control system for and method of controlling a switched reluctance generator to maintain stable control of the generator in the continuous current mode. This is achieved by sensing the load on the generator, the speed of the rotor and the position of the rotor with respect to each phase winding in order to derive switching command signals to maintain the volt-seconds applied to the winding in each phase period so as to inhibit progressive flux growth in the phase windings by actuation of the controller switches.
摘要翻译： 一种用于控制开关磁阻发电机的控制系统和方法，以在连续电流模式下维持发电机的稳定控制。 这是通过感测发电机上的负载，转子的速度和转子相对于每个相绕组的位置来实现的，以便导出开关指令信号，以保持在每个相周期中施加到绕组的伏秒 以通过致动控制器开关来抑制相绕组中的逐渐通量增长。
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公开(公告)号：US5545964A
公开(公告)日：1996-08-13
申请号：US486320
申请日：1995-06-07
申请人： John M. Stephenson , William F. Ray
发明人： John M. Stephenson , William F. Ray
摘要： A control system for and method of controlling a switched reluctance generator to maintain stable control of the generator in the continuous current mode. This is achieved by sensing the load on the generator, the speed of the rotor and the position of the rotor with respect to each phase winding in order to derive switching command signals to maintain the volt-seconds applied to the winding in each phase period so as to inhibit progressive flux growth in the phase windings by actuation of the controller switches.
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公开(公告)号：US5469039A
公开(公告)日：1995-11-21
申请号：US950599
申请日：1992-09-24
申请人： John M. Stephenson , William F. Ray
发明人： John M. Stephenson , William F. Ray
摘要： A control system for and method for controlling a switched reluctance generator to maintain stable control of the generator in the continuous current mode. This is achieved by sensing the load on the generator, the speed of the rotor and the position of the rotor with respect to each phase winding in order to derive switching command signals to maintain the volt-seconds applied to the winding in each phase period so as to inhibit progressive flux growth in the phase windings by actuation of the controller switches.
摘要翻译： 用于控制开关磁阻发电机的控制系统和方法，以在连续电流模式下维持发电机的稳定控制。 这是通过感测发电机上的负载，转子的速度和转子相对于每个相绕组的位置来实现的，以便导出开关指令信号，以保持在每个相周期中施加到绕组的伏秒 以通过致动控制器开关来抑制相绕组中的逐渐通量增长。
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公开(公告)号：US5467025A
公开(公告)日：1995-11-14
申请号：US70190
申请日：1993-06-02
申请人： William F. Ray
发明人： William F. Ray
CPC分类号： H02P6/18 , H02P25/089
摘要： A sensorless rotor position measurement system comprises a digital processor (6) which receives signals from current and flux sensors (7, 8) of the current and flux associated with a phase winding of the machine. The measurement of the current and flux is enabled at a predicted reference rotor position. The measurements are compared with stored values of current and flux and an error between the actual and the predicted reference position calculated. The calculated rotor position can then be used to predict the instant the rotor will reach the next reference position.
摘要翻译： 无传感器转子位置测量系统包括数字处理器（6），其从电流和通量传感器（7,8）接收与机器的相绕组相关联的电流和通量的信号。 在预测的参考转子位置启用电流和通量的测量。 将测量值与电流和通量的存储值进行比较，并计算实际和预测的参考位置之间的误差。 然后可以使用计算出的转子位置来预测转子将到达下一个参考位置的时刻。
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公开(公告)号：US5380994A
公开(公告)日：1995-01-10
申请号：US5380
申请日：1993-01-15
申请人： William F. Ray
发明人： William F. Ray
CPC分类号： G06K7/10881 , G06F1/163 , G06K2017/0051
摘要： A portable microcomputer inventory system including a plurality of components and a support for supporting the components on an user as the user inventories items that have a bar code disposed thereon. The components include a microcomputer, a handheld bar code scanner for scanning the bar code on items to be inventoried, a visual display device carried on the user to display information relative to the item being inventoried, a keypad for accessing the computer and a rechargeable battery pac for supplying electrical power to the components of the inventory system.
摘要翻译： 一种便携式微型计算机库存系统，包括多个组件和用于在用户上存储有条形码的用户存放项目的用户上支持组件的支持。 这些部件包括微型计算机，用于扫描要被盘存的物品上的条形码的手持式条形码扫描器，用于显示相对于所记录的物品的信息的用户显示的视觉显示装置，用于访问计算机的键盘和可充电电池 用于向库存系统的组件供电。
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公开(公告)号：US4563619A
公开(公告)日：1986-01-07
申请号：US486954
申请日：1983-04-06
申请人： Rex M. Davis , William F. Ray
发明人： Rex M. Davis , William F. Ray
CPC分类号： H02M7/527
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US4387326A
公开(公告)日：1983-06-07
申请号：US187835
申请日：1980-01-10
申请人： William F. Ray , Rex M. Davis
发明人： William F. Ray , Rex M. Davis
CPC分类号： B60L11/1807 , H02P25/089 , Y02T10/646 , Y02T10/648 , Y02T10/7005
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US4360770A
公开(公告)日：1982-11-23
申请号：US187837
申请日：1980-06-10
申请人： William F. Ray , Rex M. Davis
发明人： William F. Ray , Rex M. Davis
CPC分类号： B60L11/1807 , H02P25/092 , H02P25/0925 , Y02T10/642 , Y02T10/7005
摘要： A variable reluctance motor control system has for each main phase winding (11) a power converter circuit including a main thyristor (12) across a D.V. source (50) and a commutating circuit including a capacitor (51,52) and a commutating thristor (16), arranged to resonantly reverse the charge on the capacitor in preparation for energizing the next main phase winding (21) by passing a current through the other main phase winding.
摘要翻译： PCT No.PCT / GB79 / 00079 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 / 01133 日期为1979年12月27日。可变磁阻电动机控制系统具有用于每个主相绕组（11）的功率转换器电路，其包括跨越D.V的主晶闸管（12）。 源极（50）和包括电容器（51,52）和换向旋转器（16）的整流电路，其布置成使电容器上的电荷谐振地反向，以准备通过使电流通过电流来激励下一个主相绕组（21） 另一主相绕组。
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公开(公告)号：US09606152B2
公开(公告)日：2017-03-28
申请号：US14006931
申请日：2012-03-07
CPC分类号： G01R19/25 , G01R15/181 , G01R19/0084 , G01R19/0092 , G05F1/561 , H03F3/217 , H03F3/2173 , H03F3/45475 , H03F2200/261 , H03F2203/45512 , H03F2203/45526 , H03F2203/45528 , H03F2203/45594 , Y10T29/49117
摘要： A voltage to current converter is provided for use with a current measuring device, said current measuring device being operable to provide an output voltage which is an analog of a current to be measured. The converter is arranged to provide an output current which is an analog of the current to be measured. The converter comprises an electronic controller, a switching amplifier and means for measuring the output current as an analog voltage and providing a measure of said analog voltage to the electronic controller.
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