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1. 发明专利

JPS5843018A CONTROLLING SYSTEM FOR POWER GENERATING DEVICE OF POWER DISTRIBUTING SYSTEM 失效
公开(公告)号：JPS5843018A
公开(公告)日：1983-03-12
申请号：JP14147381
申请日：1981-09-08
申请人： TOKYO ELECTRIC POWER CO , FUJI ELECTRIC CO LTD
发明人： MAKI SHIYOUICHI , NAGAE MASAOMI
IPC分类号： G05F1/70 , H02J3/38
摘要： PURPOSE:To avoid the load voltage exceeding the allowable width of its fluctuation due to the connection of a generating device, by controlling the output current of the generating device so that the active component of the output current of the generating device is set at zero when the load voltage reaches the upper limit of its set level. CONSTITUTION:A power generating device 1 is provided with a DC power supply 11, a DC filter containing a smoothed reactor 12 and a capacitor 13, and an inverter 14. The inverter 14 is controlled by a modulation controlling circuit 16. A waveform synthesizing circuit 17 produces a control signal from the load voltage instantaneous value which is detected by a voltage detector 18 and the DC signal given from an active current controlling part 19 of the power generating device. A current command arithmetic part 30 produces an active current command value based on the above-mentioned load voltage instantaneous value and the output given from a maximum output point arithmetic part 31 and then gives the command value to the part 19.

2. 发明专利

JPS5795130A AC AMOUNT MAGNITUDE DISCRIMINATING SYSTEM 失效
公开(公告)号：JPS5795130A
公开(公告)日：1982-06-12
申请号：JP17034180
申请日：1980-12-03
申请人： TOKYO ELECTRIC POWER CO , FUJI ELECTRIC CO LTD
发明人： NAKAZAWA RIYUUZOU , ENDOU KOUICHI , NAGAE MASAOMI , KANEDA GENSHIROU
IPC分类号： H02H3/26 , G01R19/165 , H02H3/28

3. 发明专利

JPS56121330A GROUNDDFAULT PHASE DISCRIMINATING SYSTEM 失效
公开(公告)号：JPS56121330A
公开(公告)日：1981-09-24
申请号：JP2472980
申请日：1980-02-29
申请人： FUJI ELECTRIC CO LTD , FUJI FACOM SEIGIYO , TOKYO ELECTRIC POWER CO
发明人： NAGAE MASAOMI , TAKEMURA TAKESHI
IPC分类号： H02H3/253 , H02H3/34 , H02H3/353

4. 发明专利

JPS56121329A GROUNDDFAULT PHASE DISCRIMINATING SYSTEM 失效
公开(公告)号：JPS56121329A
公开(公告)日：1981-09-24
申请号：JP2472880
申请日：1980-02-29
申请人： FUJI ELECTRIC CO LTD , FUJI FACOM SEIGIYO , TOKYO ELECTRIC POWER CO
发明人： NAGAE MASAOMI , TAKEMURA TAKESHI
IPC分类号： H02H3/253 , H02H3/34 , H02H3/353

5. 发明专利

JPS60152224A SHORTCIRCUITING CURRENT SUPPRESSING METHOD 失效
公开(公告)号：JPS60152224A
公开(公告)日：1985-08-10
申请号：JP788384
申请日：1984-01-18
申请人： TOKYO ELECTRIC POWER CO , FUJI ELECTRIC CO LTD
发明人： MORI SADAO , YOROZUYA TSURUO , NAGAE MASAOMI , KANEDA MOTOSHIROU , TANIMOTO MITSURU
IPC分类号： H02H3/02 , H02H3/08

6. 发明专利

JPS5843017A CONTROLLING SYSTEM FOR POWER GENERATING DEVICE OF POWER DISTRIBUTION SYSTEM 失效
公开(公告)号：JPS5843017A
公开(公告)日：1983-03-12
申请号：JP14147281
申请日：1981-09-08
申请人： TOKYO ELECTRIC POWER CO , FUJI ELECTRIC CO LTD
发明人： MAKI SHIYOUICHI , NAGAE MASAOMI
IPC分类号： G05F1/70 , H02J3/38
摘要： PURPOSE:To prevent an increase of the width of the load voltage fluctuation which is caused by the connection of a power generating device, by starting the supply of a phase-advanced reactive current at a time point when the load voltage is approximate to the set upper-limit voltage and then controlling the output current of the generating device. CONSTITUTION:A power generating device 1 is provided with a power generating element 11, a DC filter containing a smoothed reactor 12 and a capacitor 13, and an inverter 14. The pulse width of the inverter 14 is modulated by a control circuit 16, and the output of a waveform synthesizing circuit 17 is applied to the circuit 16. The load voltage that is detected by a voltage detector 18 plus the input signals of an active current operating part 19 and a reactive current operating part 20 are applied to the circuit 17. The active current command value given from arithmetic part 21 for an active current command value is fed to the part 19 and a reactive current command arithmetic part 22. The reactive current command value given from the part 22 is transmitted to the part 20 via a characteristic changing element 23.

7. 发明专利

JPS5717A GROUND-FAULT PHASE IDENTIFYING SYSTEM 失效
公开(公告)号：JPS5717A
公开(公告)日：1982-01-05
申请号：JP4752080
申请日：1980-04-11
申请人： FUJI ELECTRIC CO LTD , TOKYO ELECTRIC POWER CO
发明人： NAGAE MASAOMI
IPC分类号： H02H3/34 , H02H3/353

8. 发明专利

JPH0515990B2 失效
公开(公告)号：JPH0515990B2
公开(公告)日：1993-03-03
申请号：JP976783
申请日：1983-01-24
申请人： FUJI ELECTRIC CO LTD
发明人： NAGAE MASAOMI , KANEDA MOTOSHIRO , NAKANISHI YOSUKE
IPC分类号： H02H3/40 , G01R31/08

9. 发明专利

JPS62200269A DIGITAL DETECTION FOR AC EFFECTIVE VALUE 失效
公开(公告)号：JPS62200269A
公开(公告)日：1987-09-03
申请号：JP4249786
申请日：1986-02-27
申请人： FUJI ELECTRIC CO LTD
发明人： NAGAE MASAOMI , OTSUKA TAKASHI
IPC分类号： G01R19/02 , H02H3/02
摘要： PURPOSE:To suppress errors of a digital effective value to a slight value regardless of changes in the frequency, by performing a computation in which a squared value of the currently sampled measured value at the time when an AC input passes the zero point is added to a squared value of the currently sampled measured value at the time when the input passes at the mid-point between two adjacent zero points to determine the effective value. CONSTITUTION:A sampled measured value obtained with ad at a sampler 21 is squared with a square computation circuit 22 22 at the next stage and a sampled measured value of an AC input is memorized into a first memory 24 via a first gate circuit 23 of into a second memory 26 via a second gate memory circuit 25. When a zero point detection circuit 12 detects that the AC input passes the zero point, the detection signal is sent to the first gate circuit 23 and likewise, a mid point detection signal from a mid-point detection circuit 13 is sent to the second gate circuit 25. The first memory 24 outputs the current data at the time when the AC input passes the zero point while the second memory 26 outputs the current data at the point when the AC input passes the mid-point between two adjacent zero points and both the data are added up.

10. 发明专利

JPS6264298A AUTOMATIC SYSTEM FOR UNIFORMIZING SPEED 失效
公开(公告)号：JPS6264298A
公开(公告)日：1987-03-23
申请号：JP20205285
申请日：1985-09-12
申请人： FUJI ELECTRIC CO LTD
发明人： NAGAE MASAOMI , KANEDA MOTOSHIROU
IPC分类号： H02P9/04
摘要： PURPOSE:To set an AC generator to a synchronous state in a short time by controlling the frequency of an AC generator so that the integrated circuit of a frequency deviation becomes equal to an initial phase difference from when the frequency deviation and the phase difference become the prescribed values. CONSTITUTION:When a frequency deviation DELTAF is the prescribed value or lower, a signal P becomes H, and a speed uniformizing signal from an auxiliary speed uniformizing signal circuit 45 is applied through a contact 46A to a governor actuator 48. When the deviation DELTAF becomes the prescribed value or lower, the signal P becomes L, and a signal Q becomes H. A polarity discrimination comparator 33 outputs a signal H in case of DELTAF

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