公开(公告)号：US4742288A

公开(公告)日：1988-05-03

申请号：US915392

申请日：1986-10-06

申请人： Osamu Sugimoto ,  Tadaatsu Kato ,  Hidenori Sawa ,  Akio Ito ,  Hiroshi Sugisaka ,  Haruo Nohara ,  Masuo Goto

发明人： Osamu Sugimoto ,  Tadaatsu Kato ,  Hidenori Sawa ,  Akio Ito ,  Hiroshi Sugisaka ,  Haruo Nohara ,  Masuo Goto

IPC分类号： H02J3/40 ,  H02P9/10 ,  H02P1/26

CPC分类号： H02J3/40 ,  H02P9/10 ,  H02P2101/10

摘要： A control system for controlling the load of an AC motor/generator of secondary AC excitation type connected to a power system in parallel to at least a synchronous machine. The AC motor/generator has the secondary excitation winding thereof controlled in the amount of excitation so as to generate an output in accordance with an external output command. In the case of variation of power flow between the power system and the synchronous machine, the output command is corrected in accordance with the variation, and the amount of the secondary excitation is controlled by the corrected output command, whereby the variation of power flow between the power system and the synchronous machine is absorbed by the AC motor/generator thereby to prevent the synchronous machine from stepping out.

摘要翻译： 一种用于控制与至少同步电机并行连接到电力系统的二次交流励磁型交流电动机/发电机的负载的控制系统。 交流电动机/发电机的次级励磁绕组被控制在励磁量中，以便根据外部输出指令产生输出。 在电力系统和同步电机之间的功率流的变化的情况下，根据变化来校正输出命令，并且通过校正的输出命令控制次级激励的量，由此， 电力系统和同步电机被交流电动机/发电机吸收，从而防止同步电机走出。

公开(公告)号：US4812730A

公开(公告)日：1989-03-14

申请号：US35035

申请日：1987-04-06

申请人： Hiroto Nakagawa ,  Yasuteru Oono ,  Tadaatsu Kato ,  Osamu Nagura ,  Sadahiko Niwa ,  Yosio Furukawa ,  Shigehiro Kayukawa

发明人： Hiroto Nakagawa ,  Yasuteru Oono ,  Tadaatsu Kato ,  Osamu Nagura ,  Sadahiko Niwa ,  Yosio Furukawa ,  Shigehiro Kayukawa

IPC分类号： H02J3/38 ,  H02P9/00 ,  H02P9/10 ,  H02P9/14 ,  H02P9/42 ,  H02P23/00 ,  H02P5/40

CPC分类号： H02J3/38 ,  H02P9/007 ,  H02P9/42 ,  H02P2101/10

摘要： A generator/motor system comprises a generator/motor having a primary winding and a secondary winding installed on the motor rotor coupled to a prime mover/load, a main circuit interposed between a power system and the primary winding of the generator/motor, an excitation circuit including a frequency converter inserted between a part of the main circuit and the secondary winding of the generator/motor, a frequency difference detector for determining the difference between the frequency of the power system and a frequency dependent on the rotational speed of the load, and a phase-shift control device for controlling the firing phase of the frequency converter in the excitation circuit by use of a signal from the frequency difference detector as a reference signal. In normal operation, a frequency signal following the frequency of the power system is produced, while at the time of a disturbance of the power system, the same frequency signal of the power system as before the disturbance continues to be produced thereby to keep the system in stable operation. For this purpose, a starting electric machine, a synchronous motor and a synchronous generator are aligned, and an output of the synchronous generator is applied to the frequency difference detector.

摘要翻译： 发电机/电动机系统包括发电机/电动机，其具有安装在电动机转子上的初级绕组和次级绕组，所述初级绕组和次级绕组连接到原动机/负载，插入电力系统和发电机/电动机的初级绕组之间的主电路， 励磁电路，包括插入在主电路的一部分和发电机/电动机的次级绕组之间的变频器;频差检测器，用于确定电力系统的频率与取决于负载的转速的频率之间的差 以及相移控制装置，用于通过使用来自频差检测器的信号作为参考信号来控制激励电路中的变频器的点火相位。 在正常运行中，产生跟随电力系统频率的频率信号，而在电力系统干扰的时刻，电力系统的频率信号与干扰之前的相同频率信号继续产生，从而保持系统 稳定运行。 为此，起动电机，同步电动机和同步发电机对准，同步发电机的输出被施加到频率差检测器。