公开(公告)号：US5027265A

公开(公告)日：1991-06-25

申请号：US453975

申请日：1989-12-20

申请人： P. John Dhyanchand ,  Sunil Patel ,  Chai-Nam Ng ,  Vietson Nguyen

发明人： P. John Dhyanchand ,  Sunil Patel ,  Chai-Nam Ng ,  Vietson Nguyen

IPC分类号： H02M7/48 ,  H02M7/49

CPC分类号： H02M7/49

摘要： A regulator for a stepped-waveform inverter having first and second subinverters which produce waveforms having a variable phase displacement therebetween and a summing transformer which sums the outputs of the subinverters includes circuitry for detecting a deviation of a parameter of the AC output power produced by the inverter from a reference and circuitry coupled to the detecting circuitry for deriving a phase command signal from the detected deviation. A comparator compares the phase command signal with a ramp signal to obtain a comparison signal and circuitry operates the first and second subinverters responsive to the comparison signal to cause the phase displacement to vary in accordance with the phase command signal.

摘要翻译： 一种用于阶梯波形逆变器的调节器，具有产生具有可变相位位移的波形的第一和第二子逆变器，以及将所述次级逆变器的输出相加的求和变换器包括用于检测由所述逆变器产生的交流输出功率的参数的偏差的电路 来自参考的反相器和耦合到检测电路的电路，用于从检测到的偏差导出相位命令信号。 比较器将相位命令信号与斜坡信号进行比较以获得比较信号，并且电路根据比较信号操作第一和第二子反相器，以使相位位移根据相位指令信号而变化。

公开(公告)号：US5581168A

公开(公告)日：1996-12-03

申请号：US290436

申请日：1994-08-15

申请人： Gregory I. Rozman ,  Albert L. Markunas ,  Alexander Cook ,  Vietson Nguyen

发明人： Gregory I. Rozman ,  Albert L. Markunas ,  Alexander Cook ,  Vietson Nguyen

IPC分类号： F02N11/04 ,  H02P9/08 ,  H02P7/00

CPC分类号： F02N11/04 ,  H02P9/08 ,  H02P2101/30

摘要： A synchronous generator usable in both a starting mode of operation and a generating mode of operation includes a permanent magnet generator having a permanent magnet and an armature winding rotatable with respect to the permanent magnet, an exciter portion having an exciter armature winding and an exciter field winding rotatable with respect to the exciter armature winding, and a main generator portion having a main generator armature winding and a main generator field winding rotatable with respect to the main generator armature winding. An inverter is coupled to supply power to the main generator portion armature winding via a DC link during the starting mode of operation, and a controller is coupled to the DC link for controlling the magnitude of the DC link current provided to the inverter during the starting mode of operation.

摘要翻译： 可用于起动操作模式和发电运行模式的同步发电机包括永久磁铁发生器，其具有永磁体和相对于永磁体可旋转的电枢绕组，激励器部分具有励磁机电枢绕组和励磁场 能够相对于励磁机电枢绕组旋转的主绕组，以及具有主发电机电枢绕组的主发电机部分和能够相对于主发电机电枢绕组旋转的主发电机励磁绕组。 逆变器被耦合以在启动操作模式期间经由DC链路向主发电机部分电枢绕组供电，并且控制器耦合到DC链路，用于控制在启动期间提供给逆变器的DC链路电流的大小 操作模式。

公开(公告)号：US5495403A

公开(公告)日：1996-02-27

申请号：US363136

申请日：1994-12-24

申请人： John Dhyanchand ,  Chai-Nam Ng ,  Vietson Nguyen ,  Richard Arbanella

发明人： John Dhyanchand ,  Chai-Nam Ng ,  Vietson Nguyen ,  Richard Arbanella

IPC分类号： H02M7/48 ,  H02M1/12

CPC分类号： H02M7/483 ,  H02M5/10

摘要： A summing transformer includes first and second sets of primary windings and first and second sets of secondary windings. The primary windings of the first set are connected in a wye configuration whereas the windings of the second set are connected in a delta configuration and the sets of primary windings are connected to form a wye-delta configuration having terminals coupled to the outputs of an inverter bridge. Each winding of the first set of secondary windings is interconnected with a winding of the second set of secondary windings. Circuitry is provided for operating the inverter bridge such that a stepped phase output waveform is produced at each of a plurality of phase outputs.

摘要翻译： 一个求和变压器包括第一和第二组初级绕组和第一和第二组次级绕组。 第一组的初级绕组连接成一个叶状配置，而第二组的绕组以三角形配置连接，并且初级绕组组被连接以形成具有耦合到反相器的输出的端子的叶形三角形结构 桥。 第一组次级绕组的每个绕组与第二组次级绕组的绕组互连。 提供了用于操作逆变器桥的电路，使得在多个相输出中的每一个产生阶梯相输出波形。

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

IPC分类号： F01D15/10 ,  F02C7/268 ,  F02N11/04 ,  H02P9/08 ,  H02P1/46

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。

公开(公告)号：US4973902A

公开(公告)日：1990-11-27

申请号：US448251

申请日：1989-12-11

申请人： John Dhyanchand ,  Vietson Nguyen

发明人： John Dhyanchand ,  Vietson Nguyen

IPC分类号： H02H7/06

CPC分类号： H02H7/06

摘要： A variable speed, constant frequency aircraft power system uses current sensing diodes to rectify the power generator output. The current flow through pairs of diodes is compared to generate phase currents to detect feeder faults.

摘要翻译： 变速恒频飞机电力系统使用电流感应二极管来整流发电机输出。 将通过成对的二极管的电流进行比较以产生相电流以检测馈线故障。