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81. 发明授权

US6072303A Method and apparatus for compensating a line synchronous generator 有权
标题翻译：线路同步发电机补偿方法及装置
公开(公告)号：US6072303A
公开(公告)日：2000-06-06
申请号：US338002
申请日：1999-06-22
申请人： Leo G. Nickoladze, deceased , by Hildegard K. Marks
发明人： Leo G. Nickoladze, deceased , by Hildegard K. Marks
IPC分类号： H02P9/00 , H02K19/26 , H02K19/38 , H02P9/42 , H02P9/48 , H02P9/44
CPC分类号： H02K19/38 , H02K19/26 , H02P9/42 , H02P2101/10 , H02P2101/15
摘要： A line synchronous generator with an exciter and generator stage. The exciter stage includes an exciter stator and an exciter rotor, and the generator stage includes a generator stator and generator rotor. In one embodiment, the stators are wound with primary windings for connection to an AC power source and the rotors are wound with secondary windings. In an alternative embodiment, the rotors are wound with primary windings for connection to the AC power source and the stators are wound with secondary windings. The proper phase angle alignment of the secondary windings are determined by connecting the primary windings of the exciter and generator stages to the AC power source, and connecting the a secondary winding of the exciter stage to a secondary winding of the generator stage. The remaining open secondary leads are then tested for two pairs having a voltage equal to two times the line voltage, and two pairs having a voltage equal to .sqroot.3 times the line voltage. The two pairs of open secondary leads having a voltage equal to two times the line voltage are connected together.
摘要翻译：具有励磁机和发电机级的线路同步发电机。励磁机级包括励磁机定子和励磁机转子，发电机级包括发电机定子和发电机转子。在一个实施例中，定子缠绕有用于连接到AC电源的初级绕组，并且转子用次级绕组缠绕。在替代实施例中，转子缠绕有用于连接到AC电源的初级绕组，并且定子用次级绕组缠绕。通过将励磁机和发电机级的初级绕组连接到AC电源并将励磁机级的次级绕组连接到发电机级的次级绕组来确定次级绕组的适当的相位角对准。然后测试剩余的开路二次引线两对，其电压等于线电压的两倍，两对具有等于线路电压3倍的电压。具有等于线电压两倍的电压的两对开路次级引线连接在一起。

82. 发明授权

US5963020A Method and apparatus for providing power-on-demand to auxiliary systems on an earth moving machine 失效
标题翻译：在地面移动机器上为辅助系统提供按需点火的方法和装置
公开(公告)号：US5963020A
公开(公告)日：1999-10-05
申请号：US892405
申请日：1997-07-15
申请人： David C. Orr
发明人： David C. Orr
IPC分类号： E02F9/20 , H02P9/44 , H02P9/04
CPC分类号： H02P9/44 , E02F9/20
摘要： A method and apparatus for supplying electrical power in an earth moving machine is provided. The method and apparatus includes an engine adapted to deliver primary power at a variable speed to the earth moving machine. A hydraulic system is connected to and driven by the engine. The hydraulic system in turn is connected to and drives a work implement. A variable input speed, constant output generator system is connected to and driven by the engine at a variable speed. The generator delivers electrical power at a constant value independent of variations of the speed of the engine. There is at least one auxiliary system adapted to receive the electrical power.
摘要翻译：提供了一种在土方机械中提供电力的方法和装置。所述方法和装置包括适于以可变速度向地球移动机器递送主要功率的发动机。液压系统连接到发动机并由发动机驱动。液压系统依次连接并驱动工作台。可变输入速度恒定输出发电机系统以可变速度连接到发动机并由发动机驱动。发电机以独立于发动机速度变化的恒定值提供电力。至少有一个适于接收电力的辅助系统。

83. 发明授权

US5798631A Performance optimization controller and control method for doubly-fed machines 失效
标题翻译：双馈机器的性能优化控制器和控制方法
公开(公告)号：US5798631A
公开(公告)日：1998-08-25
申请号：US725187
申请日：1996-10-02
申请人： Rene Spee , Shibashis Bhowmik , Johan H. R. Enslin
发明人： Rene Spee , Shibashis Bhowmik , Johan H. R. Enslin
IPC分类号： F03D7/04 , H02P9/00 , H02P9/42 , H02P9/44
CPC分类号： F03D7/0272 , F03D7/046 , H02P9/007 , H02P9/42 , F05B2210/16 , F05B2270/20 , H02P2101/15 , H02P2207/073 , Y02E10/723
摘要： A variable speed, constant frequency (VSCF) system utilizes a doubly-fed machine (DFM) to maximize the output power of the system. The system includes a power converter that provides a frequency signal and a current signal to the DFM. The power converter is controlled by an adaptive controller. The controller signals the converter to vary its frequency signal and thereby the rotor speed of the DFM until a maximum power output is sensed. The controller also signals the converter to vary its current signal and thereby the portions of power carried by the respective windings until a maximum power output is sensed. The control can be augmented to not only maximize power and efficiency, but also provide for harmonic and reactive power compensation.
摘要翻译：变速恒定频率（VSCF）系统利用双馈机（DFM）来最大化系统的输出功率。该系统包括向DFM提供频率信号和电流信号的功率转换器。功率转换器由自适应控制器控制。控制器向变频器发出信号以改变其频率信号，从而改变DFM的转子速度，直到检测到最大功率输出。控制器还向转换器发信号以改变其当前信号，从而改变由相应绕组承载的功率部分，直到感测到最大功率输出。可以增加控制功能，不仅可以最大限度地提高功率和效率，还能提供谐波和无功补偿。

84. 发明授权

US5780997A Variable reluctance alternating current generator 失效
公开(公告)号：US5780997A
公开(公告)日：1998-07-14
申请号：US723627
申请日：1996-10-03
申请人： Thomas A. Sutrina , David W. Lefavour
发明人： Thomas A. Sutrina , David W. Lefavour
IPC分类号： H02P9/40 , H02P9/48 , H02P9/44
CPC分类号： H02P9/48 , H02P9/40
摘要： A variable reluctance generator for producing alternating current at a fundamental frequency independent of a rotational speed at which the generator is driven in accordance with the invention includes a rotor having a plurality of salient poles disposed around a circumference and projecting radially outward from an axis of rotation; a stator having a plurality of salient poles disposed about an inner circumference and projecting radially inward toward the rotor; at least one stator phase winding wound on the stator for outputting the electrical power of the fundamental frequency; an exciter winding wound on the stator; an electrical load coupled to the at least one stator phase winding; a position detector for providing a rotor position signal representing a rotary position of the rotor; a first switching circuit, responsive to the rotor position signal, for applying time varying excitation current at the fundamental frequency or a multiple thereof to the exciter winding in a series of pulses of varying magnitude which define the fundamental frequency and are produced by current flow through the exciter winding by switching of the first switching circuit to cause the current flow in each current pulse and each pulse being timed in relation to an occurrence of a lowest reluctance rotary position of the salient poles of the rotor and stator during rotation of the salient poles of the rotor between adjacent salient poles of the stator so as to generate a pulse on the at least one stator phase winding in response to a pulse on the exciter winding and rotation of the rotor away from the low reluctance rotary position; a current sensor for detecting a direction of current flow in the electrical load; and a second switching circuit, coupled to the at least one stator phase winding and to the electrical load and responsive to the current sensor, for controlling a direction of current flow through the electrical load so that each pulse applied to the exciter winding produces a corresponding pulse in the electrical load without backflow of current.

85. 发明授权

US4926108A Variable speed/variable voltage generator set 失效
标题翻译：变速/变压发电机组
公开(公告)号：US4926108A
公开(公告)日：1990-05-15
申请号：US145429
申请日：1988-01-19
申请人： Arthur F. Schooley , Wolf R. Eben-Ebenau , Lloyd J. Nelson
发明人： Arthur F. Schooley , Wolf R. Eben-Ebenau , Lloyd J. Nelson
IPC分类号： F02B63/04 , H02P9/44
CPC分类号： F02B63/04 , H02P9/44 , F02B63/042
摘要： A motor-generator set for producing, within a predetermined range, a constant volts/hertz output from the generator. An engine drives an AC generator, the engine having an electronic speed regulator including a first potentiometer for adjusting a speed setting for the engine. The generator has a voltage regulator including a second potentiometer for setting the output voltage of the generator. The first and second potentiometers are ganged for simultaneous adjustment whereby adjusting the potentiometers in one direction increases the speed of the engine and the output frequency and voltage of the generator while adjusting the potentiometers in the other direction decreases the speed of the engine and the output frequency and voltage of the generator.
摘要翻译：一种用于在预定范围内产生来自发电机的恒定伏/赫兹输出的电动发电机组。发动机驱动交流发电机，发动机具有电子速度调节器，其包括用于调节发动机速度设定的第一电位计。发电机具有电压调节器，其包括用于设定发电机的输出电压的第二电位计。第一和第二电位器组合起来进行同时调整，从而在一个方向上调节电位器可以增加发动机的速度和发电机的输出频率和电压，同时在另一方向调节电位器时会降低发动机的转速和输出频率和发电机的电压。

86. 发明授权

US4383167A Drive control circuit for dental treatment instruments 失效
标题翻译：牙科治疗仪器驱动控制电路
公开(公告)号：US4383167A
公开(公告)日：1983-05-10
申请号：US138705
申请日：1980-04-09
申请人： Hermann Gmeinder , Stefan Beier
发明人： Hermann Gmeinder , Stefan Beier
IPC分类号： A61C1/02 , A61C1/00 , G05B19/07 , G05G1/44 , A61C1/06 , H02P9/44
CPC分类号： G05G1/44 , A61C1/0023 , G05B19/075 , Y10S388/90 , Y10S388/912 , Y10T74/20528 , Y10T74/20888
摘要： A circuit arrangement is provided for controlling the drive of dental treatment instruments by means of driving devices associated therewith and the operating data of which are adapted to be fed to a separate forward/backward counter when the particular treatment instrument is selected for use. A starter switch is connected to the forward/backward counter and is operable, when actuated, to vary the particular stored count of the counter step-wise for the purpose of varying the operating data and for transmission to a control element, for the control thereof, which is associated with the particular treatment instrument. Upon actuation of the starter switch in order to vary the stored count of the forward/backward counter, the counting speed of the counter is increased with increasing actuation time of the starter switch by reason of the fact that the counter receives a number of counter pulses which increase per unit time.
摘要翻译：提供了一种电路装置，用于通过与其相关联的驱动装置来控制牙科治疗仪器的驱动，并且当选择使用特定治疗仪器时，其操作数据适于被馈送到单独的前进/后退计数器。启动器开关连接到前向/后向计数器，并且当被致动时可操作以逐步改变计数器的特定存储计数，以便改变操作数据和传输到控制元件，以用于其控制，与特定治疗仪有关。在起动开关的启动时，为了改变向前/向后计数器的存储计数，计数器的计数速度随着启动器开关的致动时间的增加而增加，这是由于计数器接收到多个计数器脉冲每单位时间增加。

87. 发明授权

US3958174A Modulated induction generator 失效
标题翻译：调制电感发电机
公开(公告)号：US3958174A
公开(公告)日：1976-05-18
申请号：US568746
申请日：1975-04-16
申请人： George Henry Studtmann , Harry James Venema
发明人： George Henry Studtmann , Harry James Venema
IPC分类号： H02P27/06 , H02K17/42 , H02M5/27 , H02M5/38 , H02M7/5387 , H02P9/00 , H02P9/44
CPC分类号： H02M5/271 , H02K17/42 , H02M5/27 , H02M7/53875 , H02P9/44
摘要： An induction machine is driven to operate as a generator, and has its electrical output conductors coupled to a switching system, which can be an inverter circuit. An oscillator and logic circuit are connected to regulate the switching of the power switches, such as thyristors, in the inverter circuit which operates as a switching system. The thyristors in the switching system are regulated to switch at a frequency sufficiently below the synchronous frequency of the induction machine to enable the machine to build up and operate as a generator. A modulator is connected to the oscillator to vary the oscillator frequency, and thus change the switching frequency of the switching system, above and below a reference level to provide a corresponding a-c output voltage, with a d-c average level, on the d-c bus conductors of the inverter circuit which operates as the switching system. The amplitude and frequency of the a-c output voltage are controllable over a wide range of variations in both the shaft speed of the induction machine and/or the electrical load. The system is also capable of producing an a-c voltage and a separate d-c voltage, and both the a-c and d-c voltages can be separately controlled.

88. 发明授权

US3875483A Power supply for refrigeration units 失效
标题翻译：制冷机组电源
公开(公告)号：US3875483A
公开(公告)日：1975-04-01
申请号：US38958873
申请日：1973-08-20
申请人： TECUMSEH PRODUCTS CO
发明人： FARR JAMES B
IPC分类号： F25B49/02 , H02M7/538 , H02M7/5381 , H02P27/06 , H02P9/44
CPC分类号： H02P27/06 , F25B49/025 , F25B2600/021 , H02M7/5381 , H02P27/047 , Y02B30/741
摘要： An electronic power supply which derives power from a DC battery to operate the AC induction motor of a refrigeration compressor unit. The amplitude and frequency of the AC voltage developed by the power supply from the DC battery are functions of the battery voltage. When the battery voltage increases, the amplitude and frequency of the AC voltage for driving the motor increase and vice versa to thereby efficiently operate the motor in spite of fluctuation in the level of battery voltage.
摘要翻译：一种从DC电池获得电力以操作制冷压缩机单元的AC感应电动机的电子电源。来自直流电池的电源产生的交流电压的振幅和频率是电池电压的函数。当电池电压升高时，用于驱动电动机的交流电压的振幅和频率增加，反之亦然，从而有效地操作电动机，尽管电池电压水平的波动。

89. 发明授权

US3784896A Equipment for the automatic resynchronization of a synchronous generator 失效
标题翻译：同步发电机自动再生设备
公开(公告)号：US3784896A
公开(公告)日：1974-01-08
申请号：US3784896D
申请日：1972-12-22
申请人： BBC BROWN BOVERI & CIE
发明人： LAKOTA J
IPC分类号： H02P9/10 , H02P9/44
CPC分类号： H02P9/10
摘要： Apparatus for effecting automatic resynchronization of a synchronous generator in the event that it falls out of synchronism includes a stabilization circuit which produces an output signal that correspondingly influences the excitation voltage whenever the slip lies within a range determined by a given relationship between the rated frequency of the generator, the inertia constant of the machine group that includes the generator and the maximum value of the synchronous moment.
摘要翻译：用于在不同步的情况下实现同步发电机的自动再同步的装置包括稳定电路，其产生相应地影响激励电压的输出信号，只要滑差位于由给定关系的给定关系确定的范围内发电机组，发电机组的惯性常数和同步力矩的最大值。

90. 发明授权

US3737760A Voltage control apparatus for an alternating current generator 失效
标题翻译：用于替代电流发生器的电压控制装置
公开(公告)号：US3737760A
公开(公告)日：1973-06-05
申请号：US3737760D
申请日：1971-10-12
申请人： HITACHI LTD
发明人： KIWAKI H , SATO H , KUWABARA T
IPC分类号： H02P9/30 , H02P9/34 , H02P9/44 , H02P11/06
CPC分类号： H02P9/44 , H02P9/34
摘要： A voltage control apparatus for an alternating current generator comprising an alternating current generator which is selfexcited, an electric motor for driving the generator, a control rectifier arrangement for exciting the field winding of the generator by rectifying the output voltage of the generator, a phase shifter for controlling the control rectifier, a saturable reactor excited by the output of the generator, a rectifier for rectifying the current flowing through the reactor to supply a control input for the phase shifter, and a resistor connected across the alternating current terminals of the rectifier to bypass the current of the reactor.
摘要翻译：一种用于交流发电机的电压控制装置，包括自激式交流发电机，用于驱动发电机的电动机，用于通过整流发电机的输出电压来激励发电机的励磁绕组的控制整流器装置，用于控制控制整流器的移相器，由发生器的输出激励的可饱和电抗器，用于整流流过电抗器的电流以提供用于移相器的控制输入的整流器，以及连接在所述交流电源的交流端子整流器绕过电抗器的电流。

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