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1. 发明专利

JPH02164230A DC POWER TRANSMISSION SYSTEM 失效
公开(公告)号：JPH02164230A
公开(公告)日：1990-06-25
申请号：JP31640988
申请日：1988-12-16
申请人： TOKYO ELECTRIC POWER CO , HITACHI LTD
发明人： TOKIWA YUKIO , MIYAZAKI SATOSHI , YOSHIZUMI TATSUNORI , KAWAI TADAO
IPC分类号： H02J1/00 , H02M7/12 , H02M7/17 , H02P9/00
摘要： PURPOSE:To obtain the interconnected transmission system of a pumped storage power station making a large remodeling unnecessary and solving the problem of stability by providing a self-excited converter instead of a separately excited converter and by controlling the output frequency of the self-excited converter. CONSTITUTION:At the time of starting an apparatus, a converter 5 is operated, a DC transmission line 4 is charged with electricity, and the DC side voltage of a self-excited converter 3 is set to a rated value. Then, the self-excited converter 3 is started at a low frequency and with a low voltage output. The synchronous generator of a pumped storage power station starts rotation by the output voltage. The frequency and output voltage of the self-excited generator 3 is gradually made higher so that the number of revolutions of the generator is raised, and pumping is started with suitable timing. Thereafter, a pump discharge rate of flow can be arbitrarily controlled according to the set value Pref of a conversion power. Thus, it is possible to eliminate large remodeling of a generator-motor and to operate a stable pumped-storage power station.

2. 发明专利

JPS5953084A Control circuit for dc transmission converter 失效
标题翻译：直流变流器控制电路
公开(公告)号：JPS5953084A
公开(公告)日：1984-03-27
申请号：JP16231982
申请日：1982-09-20
申请人： Hitachi Ltd , Tokyo Electric Power Co Inc:The
发明人： SAKURAI BUICHI , GOTOU KIYOSHI , YOSHIZUMI TATSUNORI , KAWAI TADAO
IPC分类号： G05F1/66 , G05F5/00 , H02J1/00 , H02J3/36 , H02M7/155
CPC分类号： H02M7/155
摘要： PURPOSE:To enhance the reliability and the accuracy of a DC transmission converter by providing an insensitive band circuit at the input side of a frequency correction controller, thereby preventing the output error from increasing as the time elapses by the irregularity of the detector of the frequency correction controller. CONSTITUTION:insensitive band circuits 15-1-15-3 are provided at the input side of the frequency correction controllers 3-1-3-3 of 1-3 system controllers. These circuits 15-1-15-3 have insensitive band of the degree which absorbs the irregularity of the detectors of the controllers 3-1-3-3. Therefore, the controllers 3-1-3-3 do not operate by the irregularity of the detectors of the controllers 3-1-3-3, and the set power values of the 1-system, 2-system and 3-system controller do not vary.
摘要翻译：目的：通过在频率校正控制器的输入侧设置一个不灵敏的频带电路来提高直流变换器的可靠性和精度，从而防止输出误差随着频率检测器的不规则性而随着时间的推移而增加校正控制器。构成：在1-3个系统控制器的频率校正控制器3-1-3-3的输入侧设置不敏感频带电路15-1-15-3。这些电路15-1-15-3具有吸收控制器3-1-3-3的检测器的不规则度的不敏感带。因此，控制器3-1-3-3不能通过控制器3-1-3-3的检测器的不规则操作，并且1系统，2系统和3系统控制器的设定功率值不要变化

3. 发明专利

JPS5953038A Control system for ac/dc parallel transmitter 失效
标题翻译： AC / DC并联发射机控制系统
公开(公告)号：JPS5953038A
公开(公告)日：1984-03-27
申请号：JP16232182
申请日：1982-09-20
申请人： Tokyo Electric Power Co , Hitachi Ltd
发明人： SAKURAI BUICHI , GOTOU KIYOSHI , YOSHIZUMI TATSUNORI , KAWAI TADAO
IPC分类号： H02J3/36
CPC分类号： Y02E60/60

4. 发明专利

JPS5953023A Controller in dc transmitting system 失效
标题翻译：直流发电系统中的控制器
公开(公告)号：JPS5953023A
公开(公告)日：1984-03-27
申请号：JP16230882
申请日：1982-09-20
申请人： Tokyo Electric Power Co , Hitachi Ltd
发明人： SAKURAI BUICHI , HORIUCHI SUSUMU , YOSHIZUMI TATSUNORI , NAKAMURA TOMOHARU , KAWAI TADAO
IPC分类号： H02J1/00

5. 发明专利

JPS5952301A Multiplexed controller 失效
标题翻译：多路控制器
公开(公告)号：JPS5952301A
公开(公告)日：1984-03-26
申请号：JP16231182
申请日：1982-09-20
申请人： Hitachi Ltd , Tokyo Electric Power Co Inc:The
发明人： SAKURAI BUICHI , HORIUCHI SUSUMU , YOSHIZUMI TATSUNORI , NAKAMURA TOMOHARU , KAWAI TADAO
IPC分类号： G05B11/42 , G05B7/02 , G05B9/03
CPC分类号： G05B9/03
摘要： PURPOSE:To ensure the stable control even though the input of a control circuit has an error, by obtaining the deviation of each control output value to the desired value and using this deviation to unify each control output value. CONSTITUTION:A reference signal 100 is supplied to a selecting circuit 14 via differential circuits 10A-10C and control circuits 12A-12C. The circuit 14 consists of maxium value selecting circuits 16A-16C and minimum value selecting circuits 18A and 18B and selects one of the control signals supplied from circuits 12A-12C to apply it to a control subject 20 as well as to differential circuits 22A-22C respectively. The circuits 22A-22C calculate the deviation between the control signal applied to the subject 20 and the output signal of each of circuits 21A-12C and apply the deviation to circuits 10A-10C via compensating circuits 24A-24C. The circuits 10A-10C obtain the difference between the signal 100 and a feedback signal 108 given from the subject 20 and then compensates the difference by the signals given from circuits 24A- 24C. This compensated difference is applied to circuits 12A-12C respectively.
摘要翻译：目的：为了确保控制电路的输入具有误差，通过获得每个控制输出值到期望值的偏差，并使用该偏差来统一每个控制输出值，以确保稳定的控制。构成：参考信号100通过差分电路10A-10C和控制电路12A-12C提供给选择电路14。电路14由最大值选择电路16A-16C和最小值选择电路18A和18B组成，并且选择从电路12A-12C提供的控制信号中的一个将其施加到控制对象20以及差分电路22A-22C 分别。电路22A-22C计算施加到被摄体20的控制信号与各电路21A-12C的输出信号之间的偏差，并通过补偿电路24A-24C将偏差应用于电路10A-10C。电路10A-10C获得从对象20给出的信号100和反馈信号108之间的差值，然后通过由电路24A-24C给出的信号来补偿差值。该补偿差分别应用于电路12A-12C。

6. 发明专利

JP2002078182A DIGITAL PROTECTION AND CONTROL SYSTEM FOR POWER GRID 失效
公开(公告)号：JP2002078182A
公开(公告)日：2002-03-15
申请号：JP2000258492
申请日：2000-08-29
申请人： HITACHI LTD
发明人： MATSUO SOJI , TSUBOI OSAMU , YOSHIZUMI TATSUNORI
IPC分类号： H02H3/02
摘要： PROBLEM TO BE SOLVED: To improve module mounting on the board in a digital protection and control system which is built in each function module. SOLUTION: Line groups are arranged in parallel on a back board in the cabinet. The module groups are connected to those line groups through connectors. The module groups consist, for example, of an input converter module 12 to take in voltage and current from PTs for level conversion, input/ output modules 13, 16 for input/out put between the systems, data processing modules 14, 17 for relay calculation and sequence processing, and a power module 11 to supply power. The line groups consists of, for example, an analogue signal line 31, data buses 32, 33, a communication line 34, and a power line 35.

7. 发明专利

JPS62233018A PROTECTIVE DEVICE OF ARRESTOR 失效
公开(公告)号：JPS62233018A
公开(公告)日：1987-10-13
申请号：JP7718486
申请日：1986-04-03
申请人： HITACHI LTD
发明人： YOSHIZUMI TATSUNORI , AOKI YASUO
IPC分类号： H02H7/24

8. 发明专利

JPS62207121A BUS-BAR PROTECTIVE RELAY 失效
公开(公告)号：JPS62207121A
公开(公告)日：1987-09-11
申请号：JP4837286
申请日：1986-03-07
申请人： HITACHI LTD
发明人： YOSHIZUMI TATSUNORI , AOKI YASUO , SASAKI HIROSHI
IPC分类号： H02H3/28

9. 发明专利

JPS61180526A PROTECTIVE RELAY METHOD 失效
公开(公告)号：JPS61180526A
公开(公告)日：1986-08-13
申请号：JP1855385
申请日：1985-02-04
申请人： HITACHI LTD
发明人： IWATANI FUMIO , MASUKO SHOICHI , YOSHIZUMI TATSUNORI
IPC分类号： H02H3/40

10. 发明专利

JPS60257725A VOLTAGE CONTROLLER OF DC TRANSMISSION SYSTEM 失效
公开(公告)号：JPS60257725A
公开(公告)日：1985-12-19
申请号：JP11154484
申请日：1984-05-31
申请人： DENRIYOKU CHUO KENKYUSHO , HITACHI LTD
发明人： YOSHIDA YUKIO , HAYASHI TOSHIYUKI , YOSHIZUMI TATSUNORI , KAWAI TADAO
IPC分类号： H02J3/36

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