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1. 发明授权

US4689543A Frequency and voltage control for inverter powered AC motor 失效
标题翻译：变频器供电的交流电机的频率和电压控制
公开(公告)号：US4689543A
公开(公告)日：1987-08-25
申请号：US813996
申请日：1985-12-27
申请人： David J. Hucker
发明人： David J. Hucker
IPC分类号： H02P1/26 , H02P27/08 , H02P5/40
CPC分类号： H02P27/08 , H02P1/26
摘要： An induction motor is powered from a DC source through a DC to AC inverter. The inverter frequency and the AC output voltage of the inverter are controlled as a function of motor current to minimize motor starting current and to accommodate a range of DC supply voltages.
摘要翻译：感应电动机由直流电源通过直流到交流逆变器供电。逆变器频率和交流输出电压作为电机电流的函数进行控制，以最大限度地减少电机起动电流并适应一定范围的直流电源电压。

2. 发明授权

US4517483A Permanent magnet rotor with saturable flux bridges 失效
标题翻译：具有饱和磁通桥的永磁转子
公开(公告)号：US4517483A
公开(公告)日：1985-05-14
申请号：US565345
申请日：1983-12-27
申请人： David J. Hucker , Donald A. Straznickas
发明人： David J. Hucker , Donald A. Straznickas
IPC分类号： H02K1/27 , H02K21/12
CPC分类号： H02K1/278
摘要： A rotor structure for a permanent magnet generator, or PMG, includes a plurality of spaced apart magnets and magnetic circuit elements in series with the magnets on the rotor to act as flux limitation means to thereby limit the output voltage of the permanent magnet generator at low current levels.
摘要翻译：用于永磁发电机或PMG的转子结构包括与转子上的磁体串联的多个间隔开的磁体和磁路元件，用作磁通限制装置，从而将永磁发电机的输出电压限制在低当前水平。

3. 发明授权

US4139807A Rotor short-circuiting switch 失效
标题翻译：转子短路开关
公开(公告)号：US4139807A
公开(公告)日：1979-02-13
申请号：US815068
申请日：1977-07-12
申请人： David J. Hucker
发明人： David J. Hucker
IPC分类号： H02P1/50
CPC分类号： H02P1/50
摘要： A transistor switch short-circuits the main field rotor winding of a synchronous machine during start-up. A transistor is connected across the main field rotor winding and is responsive to the polarity of the voltage induced in the main field rotor winding by the main stator winding. When the voltage is of one polarity, the transistor conducts to short-circuit the main field rotor winding. When the voltage across the main rotor winding is of the opposite polarity, diodes limit the voltage buildup. The transistor which shorts the main field rotor winding is rendered inoperative when the machine is operating at or near synchronous speed.
摘要翻译：晶体管开关在启动期间使同步电机的主励磁转子绕组短路。晶体管跨越主场转子绕组连接，并且响应于主定子绕组在主场转子绕组中感应的电压的极性。当电压为一个极性时，晶体管导通，使主励磁转子绕组短路。当主转子绕组两端的电压极性相反时，二极管限制电压的积累。当机器以同步速度或接近同步速度运行时，使主场转子绕组短路的晶体管不工作。

4. 发明授权

US4052658A Inverter circuit for producing synthesized sinusoidal waveforms 失效
标题翻译：用于生成合成SINUSOIDAL波形的逆变器电路
公开(公告)号：US4052658A
公开(公告)日：1977-10-04
申请号：US733106
申请日：1976-10-18
申请人： David J. Hucker
发明人： David J. Hucker
IPC分类号： H02M7/48 , H02M7/49 , H02M1/12
CPC分类号： H02M7/49
摘要： An inverter circuit which provides a synthesized sinusoidal output waveform having a low harmonic content. The inverter is light in weight, highly efficient and driven by a fundamental rectangular component having a frequency equal to the desired synthesized sinusoidal output frequency. Single-phase or three-phase output is provided.

5. 发明授权

US4547843A Multiple output DC power supply 失效
标题翻译：多路输出直流电源
公开(公告)号：US4547843A
公开(公告)日：1985-10-15
申请号：US670916
申请日：1984-11-13
申请人： David J. Hucker
发明人： David J. Hucker
IPC分类号： H02M7/162
CPC分类号： H02M7/1626 , H02M2001/009
摘要： A multiple output DC power supply having a single closed loop control system for two or more power amplifiers which provide matched DC outputs. The control system is responsive to the sum of the DC signals output from the power supply to derive an average error signal. A switching logic circuit compares signals representing the unregulated AC power driving the power amplifiers to a reference signal in order to generate a set of control signals for each of the amplifiers, the average error signal biasing the reference signal so as to vary the time of occurrence of the control signals and regulate the DC outputs.
摘要翻译：多输出直流电源具有用于两个或更多个功率放大器的单个闭环控制系统，其提供匹配的直流输出。控制系统响应于从电源输出的直流信号之和导出平均误差信号。开关逻辑电路将表示驱动功率放大器的未调节AC电力的信号与参考信号进行比较，以便为每个放大器产生一组控制信号，平均误差信号偏置参考信号，以便改变发生时间的控制信号并调节直流输出。

6. 发明授权

US4489323A Control for electrical power conversion system 失效
标题翻译：电力转换系统控制
公开(公告)号：US4489323A
公开(公告)日：1984-12-18
申请号：US464420
申请日：1983-02-07
申请人： Timothy F. Glennon , David J. Hucker , Charles M. Lenny
发明人： Timothy F. Glennon , David J. Hucker , Charles M. Lenny
IPC分类号： H02M7/162 , H02P13/24
CPC分类号： H02M7/1626
摘要： An electrical power system has a variable speed multi-phase alternator. A multi-phase full wave rectifier with controlled rectifier elements converts the electrical power to DC. The DC voltage is regulated by a control circuit which determines the angle of conduction of the rectifier elements. If the alternator frequency is excessive, the controlled rectifier elements are not reliably commutated. The control circuit compares the alternator frequency with a reference. When the frequency is above a selected value, rectifier operation is modified either for half wave rectification or for full wave rectification of less than all of the phases from the alternator. Additional switching time is provided, improving reliability.
摘要翻译：电力系统具有变速多相交流发电机。具有可控整流元件的多相全波整流器将电功率转换为直流电。直流电压由确定整流元件的导通角度的控制电路来调节。如果交流发电机频率过大，则可控整流元件不能可靠地换向。控制电路将交流发电机频率与参考值进行比较。当频率高于所选值时，整流器操作将被修改为半波整流或者用于小于交流发电机的所有相的全波整流。提供额外的切换时间，提高可靠性。

7. 发明授权

US4467267A Alternator excitation system 失效
标题翻译：交流发电机励磁系统
公开(公告)号：US4467267A
公开(公告)日：1984-08-21
申请号：US462017
申请日：1983-01-28
申请人： David J. Hucker , Norbert L. Schmitz
发明人： David J. Hucker , Norbert L. Schmitz
IPC分类号： H02K19/30 , H02P9/36 , H02P9/10 , H02P9/30
CPC分类号： H02P9/36 , H02K19/30
摘要： An excitation system for a brushless synchronous alternator includes an exciter having a stator which includes first and second sets of field coils respectively coupled to a source of DC power and in series with polyphase AC output current developed by the main generator. A base level of exciter field current is provided by the DC current delivered to the first set of field coils while a second variable amount of field current is provided by the AC output current delivered to the second set of field coils. The exciter also includes a rotor structure having first and second sets of armature windings which develop first and second exciter currents in response to movement of the rotor structure within the magnetic fields set up by the first and second sets of exciter field coils. The first and second exciter currents are added, rectified and delivered to a set of main generator field windings. By dividing the responsibility for providing exciter field current in this fashion, transient response is improved and overall length and weight of the generator package are decreased.
摘要翻译：一种用于无刷同步交流发电机的励磁系统包括具有定子的励磁机，所述定子包括分别耦合到直流电源并与主发电机产生的多相交流输出电流串联的第一组和第二组励磁线圈。励磁场电流的基极电平由传递到第一组励磁线圈的直流电流提供，而第二可变量的励磁电流由提供给第二组励磁线圈的交流输出电流提供。励磁机还包括具有第一和第二组电枢绕组的转子结构，其响应于在由第一和第二组励磁励磁线圈设置的磁场内的转子结构的运动而产生第一和第二激励器电流。第一和第二激励电流被相加，整流并输送到一组主发电机励磁绕组。通过以这种方式分配提供励磁机励磁电流的责任，瞬态响应得到改善，发电机组的整体长度和重量减小。

8. 发明授权

US4442396A Generator system with fault condition excitation 失效
标题翻译：具有故障条件激励的发电机系统
公开(公告)号：US4442396A
公开(公告)日：1984-04-10
申请号：US480727
申请日：1983-03-31
申请人： David J. Hucker
发明人： David J. Hucker
IPC分类号： H02P9/14 , H02H7/06 , H02P9/30 , H02P9/10
CPC分类号： H02P9/302 , H02H7/06 , H02P2101/30
摘要： A generator system which is self-excited even during a fault condition includes a main generator having armature windings and a main field winding which is excited by a rotary transformer. The rotary transformer includes a stationary primary winding and a rotating secondary winding, with the primary winding receiving a controlled portion of the main generator armature output. The current through the primary winding of the transformer is controlled by silicon controlled rectifiers which are gated by a voltage regulator circuit. The voltage regulator circuit in turn receives signals from the voltage delivered to the load, the highest phase current delivered to the load and the voltage at the main generator armature output. The voltage regulator controls the current through the primary winding of the transformer in accordance with the voltage delivered to the load if that voltage is greater than a predetermined value. If the voltage delivered to the load is less than the predetermined value, such as when a fault condition arises, the current through the primary winding of the transformer is controlled in accordance with the voltage at the main generator armature output. A current limiter is also provided to limit the output current from the main generator armature during a fault condition to maintain the voltage of the generator armature at acceptable levels for self-excitation.
摘要翻译：即使在故障状态期间也自激励的发电机系统包括具有电枢绕组的主发电机和由旋转变压器激励的主励磁绕组。旋转变压器包括固定的初级绕组和旋转次级绕组，初级绕组接收主发电机电枢输出的受控部分。通过变压器的初级绕组的电流由可控硅整流器控制，这些整流器由电压调节器电路门控。电压调节器电路又接收从传送到负载的电压，传递到负载的最高相电流和主发电机电枢输出端的电压的信号。如果电压大于预定值，则电压调节器根据传送到负载的电压来控制通过变压器初级绕组的电流。如果传递到负载的电压小于预定值，例如当发生故障时，根据主发电机电枢输出端的电压来控制通过变压器初级绕组的电流。还提供限流器以在故障状态期间限制来自主发电机电枢的输出电流，以将发电机电枢的电压维持在可接受的自激电平。

9. 发明授权

US4164661A Load sharing system 失效
标题翻译：负载分担系统
公开(公告)号：US4164661A
公开(公告)日：1979-08-14
申请号：US868402
申请日：1978-01-09
申请人： David J. Hucker , Richard W. Reynolds
发明人： David J. Hucker , Richard W. Reynolds
IPC分类号： H02J3/46 , G05B11/32 , H02J1/10 , H02J3/48 , H02J3/04
CPC分类号： H02J1/10 , H02J3/48 , Y10T307/576 , Y10T307/718
摘要： Control systems for controlling load division among plural power sources coupled in parallel and providing power to a common load using feedback techniques. Control systems for various types of plural power sources are disclosed, including DC generators, hydraulic variable displacement pumps and AC generators driven by a constant speed drive. The outputs of the individual power sources are responsive and proportional to individual input control signals. The magnitude of a power component common to all the power sources or frequency, if the power sources are AC generators driven by constant speed drives, is compared to a reference to provide an error signal. Individual sensors sense the magnitude of a variable power component from each power source and provide a signal proportional thereto. Individual signals representing the variable power component are combined with the error signal to provide the individual control signals for each power source.
摘要翻译：用于控制并联耦合的多个电源之间的负载分配的控制系统，并且使用反馈技术向公共负载提供电力。公开了用于各种类型的多个电源的控制系统，包括直流发电机，液压可变排量泵和由恒速驱动器驱动的交流发电机。各个电源的输出响应并与各个输入控制信号成比例。如果电源是由恒速驱动器驱动的交流发电机，则所有电源或频率共同的功率分量的大小与参考值进行比较以提供误差信号。单个传感器感测来自每个电源的可变功率分量的大小并提供与其成比例的信号。表示可变功率分量的各个信号与误差信号组合，以为每个电源提供单独的控制信号。

10. 发明授权

US4099076A Damped rotor for a multi-channel generating system 失效
标题翻译：用于多通道发电系统的阻尼转子
公开(公告)号：US4099076A
公开(公告)日：1978-07-04
申请号：US798074
申请日：1977-05-18
申请人： David J. Hucker
发明人： David J. Hucker
IPC分类号： H02K19/14 , H02K1/24 , H02K3/20
CPC分类号： H02K3/20 , Y10T307/718
摘要： An improved rotor assembly for a generator used in a multi-channel parallel electrical generating system. A plurality of laminated sections, each having N outwardly extending poles, are stacked to form a rotor. Field windings are wound around the N poles and damper turns are wound around adjacent pole pairs to reduce the mutual flux coupling between the rotor and the stator, thereby reducing the fundamental component of torque between the rotor and the stator.
摘要翻译：一种用于多通道并联发电系统中的发电机的改进的转子组件。多个具有N个向外延伸的极的层叠部分被堆叠以形成转子。励磁绕组缠绕在N极上，并且阻尼器绕组缠绕在相邻的极对上，以减小转子和定子之间的相互通量耦合，从而减小转子和定子之间的扭矩的基本分量。

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