公开(公告)号：US4245182A

公开(公告)日：1981-01-13

申请号：US891001

申请日：1978-03-28

申请人： Hiroaki Aotsu ,  Akira Isono ,  Masuo Goto ,  Koichi Kimura ,  Yasushi Momochi ,  Takaaki Kai ,  Satoshi Kitamura ,  Akihisa Kaihara ,  Hirosi Okada

发明人： Hiroaki Aotsu ,  Akira Isono ,  Masuo Goto ,  Koichi Kimura ,  Yasushi Momochi ,  Takaaki Kai ,  Satoshi Kitamura ,  Akihisa Kaihara ,  Hirosi Okada

IPC分类号： H02J3/50 ,  H02P9/10 ,  H02P9/14 ,  H02P9/30

CPC分类号： H02P9/10 ,  H02P9/30 ,  Y10S174/15 ,  Y10T307/718

摘要： A field control apparatus for a generator having a field winding comprises a terminal voltage control unit for controlling a field current of the generator in accordance with a difference between a terminal voltage signal of the generator and a reference voltage signal, which control unit has at least one of a line drop compensation function, an under-excitation limitation function, an over-excitation limitation function, a power factor regulation function, an armature winding over-current compensation function and a cross-current compensation function. The field control apparatus includes a detector as a common signal source for detecting active power and reactive power components at an output terminal of the generator and means responsive to the output of the detector for performing scalar operation in accordance with a function of the added compensation/control function described above. An output of the operating means is added to the differential signal as an added function signal to control the field current for excitation of the field winding.

摘要翻译： 一种具有励磁绕组的发电机的现场控制装置，包括端子电压控制单元，用于根据发电机的端子电压信号与参考电压信号之间的差值控制发电机的励磁电流，该控制单元至少具有 线路补偿功能，励磁限制功能，过励磁限制功能，功率因数调节功能，电枢绕组过电流补偿功能和交叉电流补偿功能之一。 现场控制装置包括作为公共信号源的检测器，用于在发生器的输出端子处检测有功功率和无功功率分量，并且响应于检测器的输出，根据附加补偿/补偿的函数进行标量运算的装置， 上述控制功能。 操作装置的输出作为附加功能信号加到差分信号上，以控制用于励磁绕组的励磁电流。

公开(公告)号：US4129818A

公开(公告)日：1978-12-12

申请号：US806862

申请日：1977-06-15

申请人： Masuo Goto ,  Akira Isono ,  Yasushi Momochi ,  Takaaki Kai

发明人： Masuo Goto ,  Akira Isono ,  Yasushi Momochi ,  Takaaki Kai

IPC分类号： H02P9/08 ,  H02P3/06

CPC分类号： H02P9/08

摘要： Disclosed is an apparatus for carrying out normal stop of a synchronous generator in an advantageous manner without use of a field breaker. The apparatus comprises a six-phase thyristor converter for controlling field excitation of the synchronous generator in dependence upon terminal voltage thereof, which converter exhibits not only a forward conversion function (power rectifier) but also backward conversion function (power inverter). When a generator operation stop command is produced, the operation of the converter in power rectifier mode is changed over to power inverter mode. During the inverter mode operation, when the terminal voltage of the synchronous generator becomes lower than a preset value, a pair of counter part thyristors among the thyristors constituting the converter are simultaneously fired to bring about a short-circuited state in the excitation circuit with all the firing pulses supplied to the other thyristors being suppressed, thereby to complete the stopping operation for the synchronous generator.

摘要翻译： 公开了一种用于在不使用断路器的情况下以有利的方式执行同步发电机的正常停止的装置。 该装置包括用于根据其端电压来控制同步发电机的场激励的六相晶闸管转换器，该转换器不仅显示正向转换功能（功率整流器）而且还具有反向转换功能（功率逆变器）。 当产生发电机运行停止指令时，将功率整流模式下的转换器的动作转换为电力逆变器模式。 在逆变器模式操作期间，当同步发电机的端子电压变得低于预设值时，构成转换器的晶闸管之间的一对对置部分晶闸管被同时点火，以在所有激励电路中产生短路状态 供给到其他晶闸管的点火脉冲被抑制，从而完成同步发电机的停止动作。

公开(公告)号：US4326159A

公开(公告)日：1982-04-20

申请号：US71403

申请日：1979-08-30

申请人： Hiroaki Aotsu ,  Akira Isono ,  Tsutomu Inayama ,  Mamoru Fukushima

发明人： Hiroaki Aotsu ,  Akira Isono ,  Tsutomu Inayama ,  Mamoru Fukushima

IPC分类号： H02P9/10 ,  H02P9/14

CPC分类号： H02P9/10

摘要： Voltage, current and field voltage of a generator connected to an electric power system are sampled at a predetermined period for analog-digital conversion and then led to a digital computer. In addition to computation for AVR, the computer computes from its input the generator output power, and also monitors the occurrence of a fault, the removal of the fault and variation in the generator output in the system. After the occurrence of a fault, the field excitation of the generator is intensified until the generator output power reaches substantially a peak value, but after the peak value is substantially passed by, the excitation is conversely depressed to a value below the level which is present before the fault occurs. When the generator output power recovers the value which is present before the fault occurs, the computer returns to deliver the AVR output.

摘要翻译： 连接到电力系统的发电机的电压，电流和电场电压以预定的时间被采样以进行模数转换，然后被引导到数字计算机。 除了计算AVR之外，计算机还可以从输入端计算发电机的输出功率，同时监测故障的发生，故障的消除和系统发电机输出的变化。 在故障发生之后，发电机的场激励增强，直到发电机输出功率达到基本上的峰值，但是在峰值基本上过去之后，激励被反而下降到低于存在的水平的值 在故障发生之前。 当发电机输出功率恢复故障发生之前存在的值时，计算机返回以传送AVR输出。

公开(公告)号：US3956637A

公开(公告)日：1976-05-11

申请号：US425838

申请日：1973-12-18

申请人： Hiroaki Aotsu ,  Akira Isono ,  Yoshihiro Uchiyama

发明人： Hiroaki Aotsu ,  Akira Isono ,  Yoshihiro Uchiyama

IPC分类号： F01D17/04 ,  F01D21/02 ,  F01D21/14 ,  F01K7/24 ,  H02P9/04 ,  H02J1/10

CPC分类号： F01K7/24 ,  F01D21/02

摘要： An intermediate intercept valve controlling method and system for use in a heat power plant wherein the occurrence of a fault in a transmission system is detected by an abrupt decrease in generator output, and the intercept valve is closed to a certain opening depending upon the magnitude of an output variation and is then opened when a rotor angle between the internal voltage and terminal voltage of the generator reaches the first peak value.

摘要翻译： 一种用于热电厂的中间截流阀控制方法和系统，其中通过发电机输出的突然减小来检测传动系统中的故障的发生，并且截流阀根据 输出变化，然后当发电机的内部电压和端子电压之间的转子角度达到第一峰值时打开。

公开(公告)号：US4109160A

公开(公告)日：1978-08-22

申请号：US713579

申请日：1976-08-11

申请人： Masuo Goto ,  Akira Isono ,  Tunehiko Takakusagi ,  Masanobu Araki ,  Haruo Ishikawa ,  Yukio Yamaguchi

发明人： Masuo Goto ,  Akira Isono ,  Tunehiko Takakusagi ,  Masanobu Araki ,  Haruo Ishikawa ,  Yukio Yamaguchi

IPC分类号： G05D9/12 ,  F03B13/06 ,  F03B15/02 ,  F03B15/14 ,  H02J15/00 ,  F15B1/06

CPC分类号： F03B15/14 ,  F03B13/06 ,  Y02E10/22 ,  Y02E10/226 ,  Y02E60/17

摘要： In a control system for a hydroelectric power station system including upper and lower water reservoirs connected through a water channel, an intermediate water reservoir having a smaller storage capacity than those of the upper and lower reservoirs and provided on the water channel in cascade with the upper and lower reservoirs, and two power stations disposed between the upper and intermediate reservoirs and between the intermediate and lower reservoirs, respectively, the control system is arranged such that the water level of the intermediate reservoir is detected continuously and the detected value of the water level is used to correct the load instructions which are applied to the power stations for controlling outputs of the power stations whereby the water level of the intermediate reservoir is maintained substantially constant, while the power generation of the power stations is controlled so as to satisfactorily meet with the load instruction applied to the power system.

公开(公告)号：US3936722A

公开(公告)日：1976-02-03

申请号：US457506

申请日：1974-04-03

申请人： Masuo Goto ,  Akira Isono

发明人： Masuo Goto ,  Akira Isono

IPC分类号： H02P9/14 ,  H02J3/18 ,  H02P9/10

CPC分类号： H02P9/105 ,  H02J3/1885 ,  Y02E40/32

摘要： The field excitation flux of the synchronous generator is controlled in response to the summing rotor angle signal of a predetermined set signal and of a rotor angle signal representing a phase difference between the voltage equivalent to an infinite bus voltage and the output voltage from the pilot generator provided on the same rotating shaft as the synchronous generator.

摘要翻译： 响应于预定设定信号的与转子角度信号相加的转子角度信号和表示无限总线电压等效电压与来自引导发生器的输出电压之间的相位差的转子角度信号来控制同步发电机的励磁通量 设置在与同步发电机相同的旋转轴上。