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1. 发明专利

JPS60148343A METHOD OF SUPPRESSING TWISTING TORQUE OF GENERATOR SHAFT 失效
公开(公告)号：JPS60148343A
公开(公告)日：1985-08-05
申请号：JP186384
申请日：1984-01-11
申请人： DENRIYOKU CHUO KENKYUSHO , HITACHI LTD
发明人： UEDA KIYOTAKA , ICHIKAWA TATSUMI , ISONO AKIRA , KONISHI HIROO
IPC分类号： H02K7/00 , H02J3/24 , H02K11/00

2. 发明专利

JPS59204427A Control system for generator and dc system 失效
标题翻译：发电机和直流系统控制系统
公开(公告)号：JPS59204427A
公开(公告)日：1984-11-19
申请号：JP7749983
申请日：1983-05-04
申请人： Denriyoku Chuo Kenkyusho , Hitachi Ltd
发明人： YOSHIDA YUKIO , HAYASHI TOSHIYUKI , ICHIKAWA TATSUMI , KONISHI HIROO , ISONO AKIRA
IPC分类号： H02J3/36
CPC分类号： Y02E60/60

3. 发明专利

JPS60249900A OUTPUT CONTROL SYSTEM OF ATOMIC POWER GENERATOR CONNECTED WITH DC SYSTEM 失效
公开(公告)号：JPS60249900A
公开(公告)日：1985-12-10
申请号：JP10257084
申请日：1984-05-23
申请人： DENRIYOKU CHUO KENKYUSHO , PIONEER ELECTRONIC CORP
发明人： ICHIKAWA TATSUMI , YOSHIDA YUKIO , ISONO AKIRA , NAKAO TOSHIHIKO
IPC分类号： G21D3/04 , G21D3/00 , H02H7/06 , H02P9/04
摘要： PURPOSE:To prevent an atomic reactor from stopping due to overspeed of a turbine by rapidly throttling a control valve to reduce the input of the turbine when a DC system is stopped and rapidly opening the valve when the DC system is restarted. CONSTITUTION:The output command value of a generator from a central power supply station is compared with the sum of transmission enabling power of transmission lines, and smaller value is applied as a load set value of the generator to an automatic load regulator 101. On the other hand, the output of a time delay circuit 11 which inputs a load set value is compared with the load set value, and a bias signal in response to the difference is applied to a control valve control signal if the difference is the prescribed value or higher. Thus, it can prevent an atomic reactor from stopping due to the overspeed of the turbine.

4. 发明专利

JP2581553B2 失效
公开(公告)号：JP2581553B2
公开(公告)日：1997-02-12
申请号：JP7342387
申请日：1987-03-27
申请人： HITACHI LTD
发明人： KUDO HIROYUKI , KAWAKAMI JUNZO , ISONO AKIRA
IPC分类号： H02H7/26 , H02H3/00

5. 发明专利

JPS63249423A POWER SYSTEM SIMULATOR 失效
公开(公告)号：JPS63249423A
公开(公告)日：1988-10-17
申请号：JP8097587
申请日：1987-04-03
申请人： HITACHI LTD
发明人： KOMI YUTAKA , MADORI IWAO , ISONO AKIRA
IPC分类号： H02J3/00

6. 发明专利

JPS63133834A GENERATOR SIMULATOR WITH MULTIPLE PICTURE DISPLAY 失效
公开(公告)号：JPS63133834A
公开(公告)日：1988-06-06
申请号：JP27656386
申请日：1986-11-21
申请人： HITACHI LTD
发明人： KOMI YUTAKA , MADORI IWAO , ISONO AKIRA , GOTO MASUO
IPC分类号： G05B17/02 , G01R31/34 , G09G1/16 , G09G5/36 , H02B15/00 , H02J3/00

7. 发明专利

JPS6240025A COOPERATIVE CONTROLLER FOR DC TRANSMISSION SYSTEM 失效
公开(公告)号：JPS6240025A
公开(公告)日：1987-02-21
申请号：JP17774585
申请日：1985-08-14
申请人： TOKYO ELECTRIC POWER CO , HITACHI LTD
发明人： ISHIKAWA MASAHIRO , HARA CHIKUSHI , MADORI IWAO , ISONO AKIRA , KAWAI TADAO
IPC分类号： H02J3/36 , H02J1/00

8. 发明专利

JPS5815431A AC/DC INTERLOCK SYSTEM CONTROLLER 失效
公开(公告)号：JPS5815431A
公开(公告)日：1983-01-28
申请号：JP11085781
申请日：1981-07-17
申请人： HITACHI LTD
发明人： MADORI IWAO , AOTSU HIROAKI , ISONO AKIRA
IPC分类号： H02J3/36 , H02J1/00

9. 发明专利

JPS5650462A MOVING AVERAGE VALUE DIGITAL OPERATION CONTROL 失效
公开(公告)号：JPS5650462A
公开(公告)日：1981-05-07
申请号：JP12538279
申请日：1979-10-01
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： AOTSU HIROAKI , ISONO AKIRA , MOROOKA YASUO , MIZOGUCHI TSUYOSHI , INAYAMA TSUTOMU
IPC分类号： G06F17/18
摘要： PURPOSE:To reduce the rupple component rate included in the output, by giving a constitution where a specific condition is established between the number of processed data for calculation of a moving average value and the sampling interval of data. CONSTITUTION:AC voltage (x) is converted to digital quantory x' at the sampling timing from sampling timing control unit 2 by A/D converter 1. Output x' of converter 1 is converted to absolute value x'' by absolute quantity changing equipment 3, and absolute value x'' is given to moving average value calculating unit 4 to calculate the moving average value, and output value (y) is obtained. In this case, data are rearranged to such positional relation that the numger of data x'' used in unit 4 may correspond to one-period components of x'' equivalently and x'' may be equivalent relatively. The sampling period of unit 2 and the number of data used in unit 4 are so set that position relations of all data may be different from one another and position relations on the phase between respective data may be equal to one another under this state. As a result, the data volume used for average value calculation is increased practically, and the ripple component rate of output (y) is reduced.

10. 发明专利

JPS52154011A EXCITATION CONTROLLER FOR SYNCHRONOUS MACHINE 失效
公开(公告)号：JPS52154011A
公开(公告)日：1977-12-21
申请号：JP7119176
申请日：1976-06-18
申请人： HITACHI LTD
发明人： GOTOU MASUO , ISONO AKIRA , MOMOCHI YASUSHI , KAI TAKAAKI
IPC分类号： H02P9/08
摘要： PURPOSE:To cause a current made not flowing in the rectifier transformer, by making in conduction the positive and negative pole sides of a certain phase of the thyristor to derive a by-pass status, when a terminal voltage of the generator comes down below the previously set value, during an inverter operation of the thyristor.

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