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1.发明授权Identification and protection of an aerospace AC-DC power system in the presence of DC content due to faulty loads 有权由于负载有故障，在存在DC内容的情况下识别和保护航空航天交流 - 直流电力系统公开(公告)号：US08164866B2
公开(公告)日：2012-04-24
申请号：US12388297
申请日：2009-02-18
IPC分类号： H02H7/06
摘要： A fault protection system for an AC-DC distribution system detects the presence of DC content at individual loads, isolates the load responsible for the fault from the remainder of the distribution system, and blocks DC content from being propagated from the faulty load to the AC source. The fault protection system includes at least one circuit breaker connected to monitor the AC current provided to the individual electrical load and to detect the presence of DC content indicative of the load being faulty. In response to detected DC content, the circuit breaker trips open to disconnect the electrical load from the AC distribution system to prevent DC content from being propagated to adjacent loads.
摘要翻译： 用于AC-DC分配系统的故障保护系统检测各个负载中DC内容的存在，将负责故障的负载与分配系统的其余部分隔离开，并阻止DC内容从故障负载传播到AC 资源。 故障保护系统包括至少一个断路器，其连接以监测提供给各个电负载的交流电流并且检测指示负载有故障的直流内容的存在。 响应于检测到的直流含量，断路器断路器断开电气负载从交流配电系统，以防止直流含量传播到相邻负载。
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公开(公告)号：US5541488A
公开(公告)日：1996-07-30
申请号：US226188
申请日：1994-04-11
摘要： The present invention provides for detecting rotor speed through the use of sense coils on the stator teeth. Voltage ripples caused by the rotor slots is detected by combining the signals of several such sense coils so that the fundamental voltage signal is cancelled or rejected and only the ripple voltages remain, a signal proportional to rotor speed. Several alternative methods for implementing that technique are discussed herein. At low induction motor speeds, the present invention filters out the voltage ripples and incident third harmonics and instead estimates rotor speed from the fundamental voltage. When the induction motor is already being driven by a prime mover, the present invention selects a proper initial frequency command for initial motor start by identifying rotor speed from the PWM inverter. Further, the present invention provides for using a generator to control voltage to the induction motor, with a PWM inverter to control frequency signals to the induction motor.
摘要翻译： 本发明提供了通过使用定子齿上的感测线圈来检测转子速度。 通过组合几个这样的检测线圈的信号来检测由转子槽引起的电压波纹，使得基波电压信号被抵消或者被拒绝，并且仅纹波电压保持为与转子速度成比例的信号。 这里讨论了用于实现该技术的几种替代方法。 在低感应电动机速度下，本发明滤除电压波纹和入射的三次谐波，并且从基波电压估计转子速度。 当感应电动机已经由原动机驱动时，本发明通过从PWM逆变器识别转子速度来选择用于初始电动机启动的适当的初始频率指令。 此外，本发明提供使用发电机来控制感应电动机的电压，通过PWM逆变器来控制到感应电动机的频率信号。
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公开(公告)号：US5430362A
公开(公告)日：1995-07-04
申请号：US63166
申请日：1993-05-12
申请人： Kenneth R. Carr , Gregory I. Rozman , Albert L. Markunas , Michael J. Hanson , Leland E. Weber , James A. Shippling , Malcolm J. McArthur , Vijay K. Maddali , Paul E. Nuechterlein , Alexander Cook , Vietson Nguyen , Mario R. Rinaldi
发明人： Kenneth R. Carr , Gregory I. Rozman , Albert L. Markunas , Michael J. Hanson , Leland E. Weber , James A. Shippling , Malcolm J. McArthur , Vijay K. Maddali , Paul E. Nuechterlein , Alexander Cook , Vietson Nguyen , Mario R. Rinaldi
CPC分类号： F02N11/04 , H02P9/302 , F05B2220/50
摘要： A control for operating an electromagnetic machine in a starting mode of operation wherein the main armature winding of the machine receives electrical power from a controllable power source during the starting mode of operation, comprises a circuit for detecting a magnitude of a parameter of power applied to the main armature winding relative to a stationary frame of reference, a position sensor for detecting rotor position of the electromagnetic machine, a converter responsive to angular position indication for converting the detected parameter magnitude into field and torque producing components relative to a rotating frame of reference, and a circuit responsive to the field and torque producing components for controlling the power source during operation in the starting mode. This control includes an igniter for igniting a prime mover. Further, the control is operable during a first phase prior to ignition of the prime mover for causing the electromagnetic machine to provide motive power to the prime mover so as to accelerate the prime mover at a first predetermined rate, is operable during a second phase subsequent to the first phase so as to accelerate the prime mover at a second predetermined rate, is operable during this second phase for providing fuel to the prime mover to facilitate ignition thereof, and is operable during a third phase subsequent to the ignition of the prime mover so as to accelerate the prime mover at a third predetermined rate to a self-sustaining speed.
摘要翻译： 一种用于在起动操作模式下操作电磁机器的控制器，其中机器的主电枢绕组在起动操作模式期间从可控电源接收电力，包括用于检测施加到 相对于固定参考系的主电枢绕组，用于检测电磁机器的转子位置的位置传感器，响应于角度位置指示的转换器，用于将检测到的参数幅度转换成相位和转矩产生部件相对于旋转参考系 以及响应于场和转矩产生组件的电路，用于在起动模式下操作期间控制电源。 该控制包括用于点燃原动机的点火器。 此外，控制可以在原动机点火之前的第一阶段期间操作，以使得电磁机器向原动机提供动力，以便以第一预定速率加速原动机，在第二阶段期间可操作 到第一阶段以便以第二预定速率加速原动机，在该第二阶段期间可操作以向原动机提供燃料以促进其点燃，并且在原动机点火之后的第三阶段期间可操作 以便将原动机以第三预定速率加速至自持速度。
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4.发明申请IDENTIFICATION AND PROTECTION OF AN AEROSPACE AC-DC POWER SYSTEM IN THE PRESENCE OF DC CONTENT DUE TO FAULTY LOADS 有权由于故障负载直流内容的存在，航空器AC-DC电力系统的识别和保护公开(公告)号：US20100208393A1
公开(公告)日：2010-08-19
申请号：US12388297
申请日：2009-02-18
IPC分类号： H02H5/00
摘要： A fault protection system for an AC-DC distribution system detects the presence of DC content at individual loads, isolates the load responsible for the fault from the remainder of the distribution system, and blocks DC content from being propagated from the faulty load to the AC source. The fault protection system includes at least one circuit breaker connected to monitor the AC current provided to the individual electrical load and to detect the presence of DC content indicative of the load being faulty. In response to detected DC content, the circuit breaker trips open to disconnect the electrical load from the AC distribution system to prevent DC content from being propagated to adjacent loads.
摘要翻译： 用于AC-DC分配系统的故障保护系统检测各个负载中DC内容的存在，将负责故障的负载与分配系统的其余部分隔离开，并阻止DC内容从故障负载传播到AC 资源。 故障保护系统包括至少一个断路器，其连接以监测提供给各个电负载的交流电流并且检测指示负载有故障的直流内容的存在。 响应于检测到的直流含量，断路器断路器断开电气负载从交流配电系统，以防止直流含量传播到相邻负载。
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