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    • 1. 发明授权
    • Excitation of switched reluctance motors
    • 开关磁阻电机的励磁
    • US07208906B2
    • 2007-04-24
    • US10837140
    • 2004-04-30
    • Michael James TurnerPaul Andrew Sykes
    • Michael James TurnerPaul Andrew Sykes
    • H02P1/46
    • H02P6/22H02P25/098
    • A switched reluctance drive is supplied from a power source. The phases of the machine are controlled by a current controller which uses an excitation strategy to minimize the supply current drawn for a particular output. The strategy alternates the excitation between two phases for a given time until the rotor moves to a desired position. A method of starting a switched reluctance motor having a stator with at least two phases, a moveable part, and a position transducer includes determining from transducer output a plurality of phases that are available to produce force in a desired direction, energizing a first phase of the available phases for a predetermined time period that is independent of the transducer output, and energizing a second phase of the available phases after energization of the first phase is initiated.
    • 开关磁阻驱动器由电源供电。 机器的相位由电流控制器控制,电流控制器使用激励策略来最小化为特定输出提供的电源电流。 该策略交替给定时间的两相之间的激励,直到转子移动到期望的位置。 一种启动具有至少两相的定子的开关磁阻电动机的方法,可移动部件和位置传感器包括从换能器输出确定可在期望方向上产生力的多个相,激励第一阶段 启动独立于换能器输出的预定时间段的可用相位,以及在第一阶段通电之后激励可用相的第二阶段。
    • 4. 发明授权
    • Switching circuit for a reluctance machine
    • 用于磁阻电机的开关电路
    • US6087799A
    • 2000-07-11
    • US100280
    • 1998-06-19
    • Michael James Turner
    • Michael James Turner
    • H02P25/08H02P1/46
    • H02P25/092
    • A switching circuit for a reluctance machine includes one or more half-bridge converter modules including serially connected switches connected between power rails +V.sub.dc and -V.sub.dc. A pair of capacitors are also connected between the power rails, and the phase winding of the machine is connected at one end between transistors and at the other end between the capacitors. The switches act as separate power circuits, alternately conducting to excite the phase winding either during alternate phase conduction periods or during alternate groups of phase periods. The half-bridge modules are commercially readily available as cost-effective preassembled items.
    • 用于磁阻电机的开关电路包括一个或多个半桥转换器模块,其包括连接在电源轨+ Vdc和-Vdc之间的串联连接的开关。 一对电容器也连接在电源轨之间,机器的相绕组一端连接在晶体管之间,另一端连接在电容器之间。 开关作为单独的电源电路,交替地在交替的相导通周期期间或在交替的相位组期间激励相绕组。 半桥模块是商业上容易获得的,作为具有成本效益的预组装物品。
    • 8. 发明授权
    • Device and method for controlling a time variable inductive load
    • 用于控制时变电感负载的装置和方法
    • US6002222A
    • 1999-12-14
    • US12290
    • 1998-01-23
    • Michael James Turner
    • Michael James Turner
    • H02P25/08H02P1/46
    • H02P25/08H02M2003/1555
    • A switched reluctance machine controller derives an error signal from the difference between a current reference and the phase winding current. The error signal is applied to a pair of hysteresis circuits which define adjacent hysteresis bands above and below the reference current. The magnitude of the hysteresis bands may vary as a function of the current reference. The outputs of the hysteresis circuits are received by control logic which permits current to be applied to the phase winding when the current is below the hysteresis bands, removes current from the phase winding when the current is above the hysteresis bands and allows the phase winding current to freewheel when the current is between the upper and lower hysteresis limits. The power device used for freewheeling alternates between an upper power device and a lower power device.
    • 开关磁阻电机控制器从电流基准和相绕组电流之间的差异中导出误差信号。 误差信号被施加到一对滞后电路,其限定在参考电流之上和之下的相邻滞后带。 滞后带的幅度可以随电流参考值的函数而变化。 滞后电路的输出由控制逻辑接收,当电流低于磁滞带时,允许电流施加到相绕组,当电流高于磁滞带时,从相绕组去除电流,并允许相绕组电流 当电流在上下滞后限制之间时,要飞行。 用于续流的电源设备在上电源设备和下电源设备之间交替显示。