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    • 6. 发明授权
    • Permanent magnet synchronous machine with integrated magnetic bearings
    • 永磁同步电机带集成磁轴承
    • US6020665A
    • 2000-02-01
    • US30757
    • 1998-02-25
    • Joseph Michael MaurioEdgar S. Thaxton
    • Joseph Michael MaurioEdgar S. Thaxton
    • F16C32/04F16C39/06H02K7/09H02K21/14
    • F16C32/0497F16C32/0444H02K7/09
    • In the particular embodiments described in the specification, a permanent magnet synchronous machine includes a stator with a plurality of stator coils and a rotor within the stator having a plurality of permanent magnets disposed around its periphery, and position detectors for detecting the horizontal, vertical and axial positions of the rotor within the stator. A magnetic bearing control arrangement generates control signals based on deviations of the rotor position from a desired position and supplies corrective signals to the stator coils and a motor control arrangement detects the angular position and speed of the rotor within the stator and supplies signals to the stator coils simultaneously with the magnetic bearing control signals to control the angular position and rotational speed of the rotor.
    • 在本说明书中描述的特定实施例中,永磁同步电机包括具有多个定子线圈的定子和定子内的转子,其具有围绕其周边设置的多个永磁体,以及位置检测器,用于检测水平,垂直和 转子在定子内的轴向位置。 磁轴承控制装置基于转子位置与期望位置的偏差产生控制信号,并向定子线圈提供校正信号,并且马达控制装置检测定子内的转子的角位置和速度,并将信号提供给定子 线圈与磁轴承控制信号同时控制转子的角位置和转速。
    • 7. 发明授权
    • Fault protection arrangement for electric power distribution systems
    • 配电系统故障保护装置
    • US6008971A
    • 1999-12-28
    • US46078
    • 1998-03-23
    • Greg DubaEdgar S. ThaxtonJohn Walter
    • Greg DubaEdgar S. ThaxtonJohn Walter
    • H02H7/22H02H3/06H02H7/26H02H7/28H02H7/30H02J3/38H02J13/00H02H3/00
    • H02H7/30H02H3/063
    • A fault protection arrangement for electric power distribution systems includes a plurality of power sources connected to a distribution bus through circuit breakers and a plurality of loads connected through switches to the distribution bus, along with fault sensors in each of the power source lines and load lines and a control means responsive to detection of a fault in a load line to open the circuit breakers in the power source lines connected to the distribution bus and then to open the switch in the load line containing the fault and then to reclose the circuit breakers in the power source line to resume power flow to unaffected loads. The embodiments provide automatic fault isolation and automatic system realignments using a minimum amount of circuit interrupting devices in conjunction with a distributed control system. The embodiments eliminate fault coordination difficulties and improve power continuity as compared to conventional hierarchal protective schemes.
    • 电力分配系统的故障保护装置包括通过断路器连接到配电总线的多个电源以及通过开关连接到分配总线的多个负载以及每个电源线和负载线路中的故障传感器 以及控制装置,其响应于检测负载线路中的故障以打开连接到分配总线的电源线中的断路器,然后在包含故障的负载线路中打开开关,然后将断路器重新闭合 电源线恢复电源流向不受影响的负载。 这些实施例使用与分布式控制系统结合的最小量的电路中断装置来提供自动故障隔离和自动系统重新对准。 与传统的层次保护方案相比,这些实施例消除了故障协调困难并提高了功率连续性。
    • 8. 发明授权
    • Heat transfer cold plate arrangement
    • 传热冷板排列
    • US06230791B1
    • 2001-05-15
    • US09385277
    • 1999-08-30
    • Pieter Van DineEdgar S. ThaxtonJames S. SmithJeffrey Linkinhoker
    • Pieter Van DineEdgar S. ThaxtonJames S. SmithJeffrey Linkinhoker
    • H05K720
    • H01L23/473H01L2924/0002H01L2924/00
    • In the embodiments described in the specification a metal heat transfer cold plate has two sets of parallel coolant passages extending between opposite end surfaces and non-metallic headers made of electrically insulating material are attached to the opposite ends of the metal plate. One of the headers provides an inlet to one set of coolant passages and an outlet from the other set of coolant passages and the other header provides fluid communication between the two sets of coolant passages. The headers are affixed to the cold plate by adhesive or by a snap-in connection having a sealing gasket between each header and the cold plate and the assembled cold plate and headers are insulatively supported by mounting feet attached to the electrically insulating headers.
    • 在说明书中描述的实施例中,金属传热冷板具有在相对端面之间延伸的两组平行的冷却剂通道,并且由电绝缘材料制成的非金属集管附接到金属板的相对端。 一个集管提供一组冷却剂通道的入口和另一组冷却剂通道的出口,另一个集管提供两组冷却剂通道之间的流体连通。 集管通过粘合剂或通过在每个集管和冷板之间具有密封垫片的卡扣连接固定到冷板,并且组装的冷板和集管由安装在电绝缘集管上的安装脚绝缘地支撑。
    • 9. 发明授权
    • Method and arrangement for direct current circuit interruption
    • 直流电路中断的方法和布置
    • US6075684A
    • 2000-06-13
    • US46075
    • 1998-03-23
    • Greg A. DubaEdgar S. ThaxtonJohn Walter
    • Greg A. DubaEdgar S. ThaxtonJohn Walter
    • H01H33/59H03K17/0814H03K17/16H02H3/00
    • H03K17/164H03K17/08142H03K17/168
    • In the direct current circuit interruption arrangements disclosed in the specification, a solid state circuit interrupter interrupts the connection in a circuit path between a power source and a load. The stored energy in the circuit is dissipated in a resistive commutation circuit by using controllable power semiconductors such as Insulated Gate Bipolar Transistors to increase resistance between the terminals of the circuit interruption arrangement. An in-line power semiconductor switch acts as the circuit disconnecting device and is shunted by a resistive commutation circuit consisting of a plurality of solid state commutation switches and resistors in various configurations which act to dissipate the energy. In one embodiment the solid state switches in the commutation circuit are connected to a common circuit interrupter terminal and to a resistor through a series of taps on the resistor and the resistor is connected to the other circuit interrupter terminal. In another embodiment, the commutation circuit consists of parallel branches each having a solid state switch in series with a resistor and each branch is shunted across the circuit interrupter. In a further embodiment, the circuit path between the power source and the load consists of a plurality of parallel cables and each cable has an in-line solid state switch with a shunted resistive commutation circuit. In each of the embodiments the in-line solid state switches are opened and the solid state commutation switches are closed simultaneously, introducing resistance into the circuit path. The commutation switches are then sequentially opened to further increase the circuit resistance and complete the circuit interruption without causing electric potentials to exceed the device ratings for the circuit interrupter.
    • 在本说明书中公开的直流电路中断装置中,固态电路断路器中断电源和负载之间的电路中的连接。 电路中存储的能量通过使用诸如绝缘栅双极晶体管的可控功率半导体在电阻换向电路中消散以增加电路中断布置的端子之间的电阻。 在线功率半导体开关用作电路断开装置,并且由各种配置中的多个固态换向开关和电阻器组成的电阻换向电路分流,其作用是耗散能量。 在一个实施例中,换向电路中的固态开关通过电阻器上的一系列抽头连接到公共断路器端子和电阻器,并且电阻器连接到另一个断路器端子。 在另一个实施例中,换向电路由每个具有与电阻器串联的固态开关的并联支路组成,并且每个支路在电路断续器上分流。 在另一个实施例中,电源和负载之间的电路路径由多条平行电缆组成,每条电缆具有带有分流电阻换向电路的直列式固态开关。 在每个实施例中,在线固态开关被打开并且固态换向开关同时闭合,将电阻引入电路路径。 然后顺序地打开换向开关,以进一步增加电路电阻并完成电路中断,而不会使电位超过电路断续器的装置额定值。