公开(公告)号：US20050151515A1

公开(公告)日：2005-07-14

申请号：US11036068

申请日：2005-01-14

申请人： Alexander Isurin ,  Alexander Cook

发明人： Alexander Isurin ,  Alexander Cook

IPC分类号： H02H7/06 ,  H02P9/00 ,  H02P11/00

CPC分类号： H02P9/305 ,  H02M2003/1555

摘要： A system for controlling the excitation of an alternator field coil. The system comprises a capacitor forming a charge reservoir, a first and a second selectively operable switch connected to opposing ends of a field coil of the alternator, a first catch diode, and a second catch diode. At least one of the first and second switches are operated at a variable duty cycle and the capacitor both absorbs energy from the field coil and supplies energy to the field coil to regulate the magnetic field of the field coil, effective to regulate the output voltage of the alternator and rapidly compensate for changes in at least one load connected to the alternator.

摘要翻译： 用于控制交流发电机励磁线圈的激励的系统。 该系统包括形成电荷储存器的电容器，连接到交流发电机的励磁线圈的相对端的第一和第二选择性操作开关，第一捕捉二极管和第二捕获二极管。 第一和第二开关中的至少一个以可变占空比运行，并且电容器既吸收来自励磁线圈的能量，并向场线圈提供能量以调节励磁线圈的磁场，从而有效地调节励磁线圈的输出电压 交流发电机，并快速补偿连接到交流发电机的至少一个负载的变化。

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：US5126647A

公开(公告)日：1992-06-30

申请号：US509740

申请日：1990-04-17

申请人： Scott E. Blackburn ,  Alexander Cook

发明人： Scott E. Blackburn ,  Alexander Cook

IPC分类号： H02M7/5395 ,  H02P23/00

CPC分类号： H02M7/5395 ,  H02P23/20

摘要： An average current measuring circuit (40) in accordance with the invention includes a first switch (42) connected between a pair of reference potentials which has a duty cycle which is controlled by a control signal which pulse width modulates current flowing through the switch to a load and varies the current flowing through the switch in frequency; a first current transformer (44) coupled to the current flowing through the first switch for producing an output signal proportional to the current flow; a sampling circuit (46), coupled to the output signal, for sampling current magnitude when the switch is turned on; and an averaging circuit (60) coupled to the sampling circuit, for producing an average signal of successive samples of a current flow through the load.

摘要翻译： 根据本发明的平均电流测量电路（40）包括连接在一对参考电位之间的第一开关（42），其具有由控制信号控制的占空比，脉冲宽度调制流过开关的电流为 加载并改变流经开关的电流频率; 耦合到流经所述第一开关的电流的第一电流互感器（44），用于产生与所述电流成比例的输出信号; 耦合到所述输出信号的采样电路（46），用于当所述开关导通时对所述电流幅度进行采样; 以及耦合到采样电路的平均电路（60），用于产生通过负载的电流的连续采样的平均信号。

公开(公告)号：US5034876A

公开(公告)日：1991-07-23

申请号：US580277

申请日：1990-09-10

申请人： Maurice A. Kirchberg, Jr. ,  Alexander Cook

发明人： Maurice A. Kirchberg, Jr. ,  Alexander Cook

IPC分类号： H02M7/529

CPC分类号： H02M7/529

摘要： A pulse-width-modulated inverter models the output response of the system for a given switching angle set under existent load and d.c. link conditions. Before implementation, a provisionally selected angle set is input to the model, which produces an output representative of system operation for the provisional selected set. The harmonics content of the model output is compared with criteria establishing maximally allowable amplitudes for the harmonics and the set is implemented only if the output meets the criteria.

摘要翻译： 脉冲宽度调制的反相器对现有负载和直流电压下给定的开关角度设置系统的输出响应。 链接条件。 在实施之前，将临时选择的角度集合输入到模型，其产生代表临时选择集合的系统操作的输出。 将模型输出的谐波含量与建立谐波最大允许幅度的标准进行比较，只有当输出满足标准时才执行该设置。

公开(公告)号：US5001622A

公开(公告)日：1991-03-19

申请号：US521742

申请日：1990-05-10

申请人： Maurice A. Kirchberg, Jr. ,  Alexander Cook

发明人： Maurice A. Kirchberg, Jr. ,  Alexander Cook

IPC分类号： H02M7/5395

CPC分类号： H02M7/5395

摘要： In a pulse width modulated inverter, the fit of a selected switching angle is monitored by counting zero crossings in a neighborhood of the function ##EQU1## for each harmonic of interest. If the fit is bad, a switching angle is moved to improve the fit.

摘要翻译： 在脉冲宽度调制的逆变器中，通过对每个感兴趣的谐波的功能的邻域中的零交叉进行计数来监视所选切换角的拟合。 如果配合不好，则移动切换角度以改善配合。

公开(公告)号：US4977492A

公开(公告)日：1990-12-11

申请号：US514674

申请日：1990-04-25

申请人： Maurice A. Kirchberg, Jr. ,  Alexander Cook

发明人： Maurice A. Kirchberg, Jr. ,  Alexander Cook

IPC分类号： H02M7/5395

CPC分类号： H02M7/5395

摘要： An inverter controller adjusts a selected switching pattern to accommodate minor variations and loads in the neighborhood of that pattern. The controller realizes in real-time the equivalent of an iterative solution of predetermined patterns. A number of representative pulse width modulated (PWM) patterns are selected for a range of loads and link ripple. A portion of the fundamental output is inserted onto the d.c. link to control one or more higher harmonics.

摘要翻译： 逆变器控制器调整所选择的开关模式以适应该图案附近的微小变化和负载。 控制器实时实现相当于预定模式的迭代解决方案。 针对一系列负载和链路纹波选择了一些代表性的脉宽调制（PWM）模式。 基本输出的一部分被插入到直流 链接以控制一个或多个更高次谐波。

公开(公告)号：US4935859A

公开(公告)日：1990-06-19

申请号：US421451

申请日：1989-10-13

申请人： Maurice A. Kirchberg ,  Alexander Cook

发明人： Maurice A. Kirchberg ,  Alexander Cook

IPC分类号： H02M5/27

CPC分类号： H02M5/272

摘要： This invention relates to a VSCF system for aircraft power generation having a DC source, the DC source producing a substantially constant voltage DC signal. An inverter is coupled to the DC source and receives the DC signal, applying a PWM pattern of switching transients to the DC signal to produce an AC signal from the DC signal. The subject invention contemplates the addition of a feedback circuit which comprises a transformer providing an inductive coupling between the AC signal at a point of regulation and the DC signal at a point between the DC source and the inverter to eliminate short duration switching transients in the PWM pattern. Modulation of the DC signal allows short duration switching transients in the PWM pattern to be lengthened, thereby avoiding physical minimum time switching limitations in the switches of the inverter. Feedback of the AC signal allows inverter frequency to be changed while maintaining synchronization between the DC signal modulation and PWM pattern fed to the inverter.

摘要翻译： 本发明涉及一种用于飞机发电的VSCF系统，其具有DC源，DC源产生基本恒定的电压DC信号。 反相器耦合到DC源并接收DC信号，将开关瞬变的PWM模式应用于DC信号以产生来自DC信号的AC信号。 本发明考虑了添加反馈电路，该反馈电路包括在调节点处的AC信号和DC源和逆变器之间的点处的DC信号之间提供电感耦合的变压器，以消除PWM中的短时间开关瞬变 模式。 直流信号的调制允许PWM模式中的短时间切换瞬变被延长，从而避免逆变器开关中的物理最小时间切换限制。 交流信号的反馈允许变频器频率同时保持直流信号调制与馈送到逆变器的PWM模式之间的同步。

公开(公告)号：US4908565A

公开(公告)日：1990-03-13

申请号：US15903

申请日：1987-02-18

申请人： Alexander Cook ,  Richard W. Reynolds

发明人： Alexander Cook ,  Richard W. Reynolds

IPC分类号： H02J3/38 ,  H02P9/00 ,  H02P9/04 ,  H02P9/08 ,  H02P9/48

CPC分类号： H02P9/48 ,  H02P9/08 ,  H02P2101/30

摘要： A power supply system for developing electrical power from variable-speed motive power produced by a prime mover includes a differential speed summer having a first shaft coupled to the prime mover and further having second and third shafts coupled to first and second generators, respectively, a power conditioner coupled to the second generator for conditioning the power developed thereby and means for regulating the conditioned power developed by the second generator so that the first generator develops constant-frequency AC power.

摘要翻译： 用于从由原动机产生的可变速动力来开发电力的电源系统包括差速减速器，其具有联接到原动机的第一轴，并且还具有分别联接到第一和第二发电机的第二和第三轴， 耦合到第二发生器的功率调节器，用于调节由此产生的功率，以及用于调节由第二发生器产生的调节功率的装置，使得第一发生器产生恒定的交流电力。

公开(公告)号：US20090296429A1

公开(公告)日：2009-12-03

申请号：US12475446

申请日：2009-05-29

申请人： ALEXANDER COOK ,  ALEXANDER ISURIN

发明人： ALEXANDER COOK ,  ALEXANDER ISURIN

IPC分类号： H02M1/14 ,  H02M7/5387

CPC分类号： H02M7/538 ,  H02M1/34 ,  H02M2001/342 ,  Y02B70/1491

摘要： A snubber circuit for a switching converter. A power source has a first rail and a second rail. A snubber transformer has a primary winding and a secondary winding, a first end of each of the primary and secondary windings being coupled together to form a transformer common point and a second end of the primary winding being connected to a half-bridge switching converter. A first capacitor is connected between the first rail and the transformer common point. A second capacitor is connected between the second rail and the transformer common point. A first diode is connected between the secondary winding and the first rail. A second diode is connected between the secondary winding and the second rail. The snubber circuit suppresses voltage transients and recovers energy from said voltage transients. In one embodiment the switching converter is a half-bridge configuration with zero current switching in a multi-level topology.

摘要翻译： 用于开关转换器的缓冲电路。 电源具有第一导轨和第二导轨。 缓冲变压器具有初级绕组和次级绕组，每个初级和次级绕组的第一端被耦合在一起以形成变压器公共点，并且初级绕组的第二端连接到半桥开关转换器。 第一电容器连接在第一导轨和变压器公共点之间。 第二电容器连接在第二导轨和变压器公共点之间。 第二二极管连接在次级绕组和第一导轨之间。 第二二极管连接在次级绕组和第二导轨之间。 缓冲电路抑制电压瞬变，并从所述电压瞬变恢复能量。 在一个实施例中，开关转换器是在多电平拓扑中具有零电流切换的半桥配置。

公开(公告)号：US20050151509A1

公开(公告)日：2005-07-14

申请号：US11035830

申请日：2005-01-14

申请人： Alexander Cook

发明人： Alexander Cook

IPC分类号： H02J7/00

CPC分类号： B60R16/033 ,  B60L1/00 ,  B60L11/1866 ,  H02J1/00 ,  H02J7/0018 ,  H02J7/1423 ,  H02J2001/008 ,  Y02T10/7005 ,  Y02T10/7055 ,  Y02T10/7061

摘要： An electrical system control for a vehicle having a charging source, a first battery connected in series with a second battery to form a primary power supply that is connected to the charging source, and a third battery forming a secondary power supply. The system comprises a first bidirectional battery equalizer connected to the charging source and further connected to the second battery, a second bidirectional battery equalizer connected to the charging source and further connected to the third battery, and a controller adapted to monitor the state of at least one of the charging source and the first, second and third batteries. The controller also controls the operation of at least one of the first and second bidirectional battery equalizers in a predetermined manner, effective to control the charge and discharge of at least one of the first, second and third batteries.

摘要翻译： 一种用于具有充电源的车辆的电气系统控制，与第二电池串联连接以形成连接到充电源的主电源的第一电池和形成二次电源的第三电池。 该系统包括连接到充电源并进一步连接到第二电池的第一双向电池均衡器，连接到充电源并进一步连接到第三电池的第二双向电池均衡器，以及适于监视至少 一个充电源和第一个，第二个和第三个电池。 控制器还以预定的方式控制第一和第二双向电池均衡器中的至少一个的操作，有效地控制第一，第二和第三电池中的至少一个电池的充电和放电。