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1. 发明专利

JPH0528883A STRUCTURE OF HIGH SPEED SUPERCONDUCTIVE SWITCH 失效
公开(公告)号：JPH0528883A
公开(公告)日：1993-02-05
申请号：JP17997491
申请日：1991-07-19
申请人： JAPAN ATOMIC ENERGY RES INST , FUJI ELECTRIC CO LTD
发明人： TSUNEOKA MASAKI , YOSHIDA KIYOSHI , HIGAMI HISAAKI , YASUKAWA YUKIO , KUMAGAI TAKEO
IPC分类号： H01H33/59
摘要： PURPOSE:To accomplish a permanent current switch at high speed and with low heat emission, suppress heat intrusion of refrigerant He and evaporation associate therewith, and control the operation time easily with the peak value of the input power. CONSTITUTION:A thermal type permanent current switch 3 is composed of a superconductive wire 3a and a heater wire 3b. When the current in the superconductive wire 3a is to be shut off, first a large power is applied to the heater wire 3b to quickly transfer a superconductive coil 1 from the superconductive state into normal conductive state, and then the power to the heater wire 3b is reduced so as to apply the min. power for keeping the normal conductive state.

2. 发明专利

JPH06197536A DC POWER UNIT 失效
公开(公告)号：JPH06197536A
公开(公告)日：1994-07-15
申请号：JP35958092
申请日：1992-12-25
申请人： JAPAN ATOMIC ENERGY RES INST , FUJI ELECTRIC CO LTD
发明人： TSUNEOKA MASAKI , KUROKI KAZUO , IGARASHI MASATERU
IPC分类号： H02M1/15 , H02M3/28
摘要： PURPOSE:To protect a load and DC power unit without using any protective device by reducing the ripple of the output DC voltage of the power unit without using a smoothing filter composed a large inductance, etc. CONSTITUTION:This power unit is provided with DC-DC converters 8 and 10 which respectively have DC current sources 82 and 102, inverters 82 and 103, transformers 85 and 105, and rectifiers 86 and 106 and are connected in parallel with the output side of a DC voltage source 7. The power unit is also provided with regenerating means 81 and 101 which regenerate the output currents of the current sources 82 and 102 on the output side of the voltage source 7 and a voltage adjusting means 12 which adjusts the output voltage value of the voltage source 7 to the double or nearly double value of the output DC voltage values of the converters 8 and 10 converted into the primary winding-side voltage values of the transformers 85 and 105.

3. 发明专利

JPH09233804A VOLTAGE ADJUSTER AND VOLTAGE DIVISION ADJUSTER 失效
公开(公告)号：JPH09233804A
公开(公告)日：1997-09-05
申请号：JP3698096
申请日：1996-02-23
申请人： JAPAN ATOMIC ENERGY RES INST
发明人： TSUNEOKA MASAKI
IPC分类号： G05F1/613 , H02M1/08
摘要： PROBLEM TO BE SOLVED: To adjust voltage with high output stability by equipping a voltage adjuster with a Zener diode for connecting a collector and a base, and a switch for bypassing this or a low-capacity voltage adjuster. SOLUTION: This becomes a low-voltage source where the current is amplified by a transistor 1 and a Zener diode 2 for connecting the collector to the base. Then, this becomes a voltage adjusting circuit which can adjust the voltage limited to the maximum Zener diode voltage of a Zener diode 2 by bypassing the Zener diode 2 by a switch or a low-capacity voltage adjuster 3. Accordingly, even in the case that the impedance of load changes suddenly, the low-voltage property can be maintained and excellent output stability can be obtained since the transistor 1 amplifies the current of the Zener diode 2 or the low-capacity voltage source.

4. 发明专利

JPH0794106A GYROTRON DEVICE 失效
公开(公告)号：JPH0794106A
公开(公告)日：1995-04-07
申请号：JP23440993
申请日：1993-09-21
申请人： JAPAN ATOMIC ENERGY RES INST , TOSHIBA CORP
发明人： TSUNEOKA MASAKI , KASUGAI ATSUSHI , SAKAMOTO KEIJI , KARIYA TSUYOSHI
IPC分类号： H01J25/00
摘要： PURPOSE:To certainly ensure electric insulation between a body and a support or a collector by providing an insulator jacket between the body to envelop a resonant cavity and a magnetic field device to supply a magnetic field to the cavity. CONSTITUTION:A gyrotron tube has the body 11 mechanically supported by supports 18, 19. To supply a magnetic field to the resonant cavity 4, a grounded magnetic field device 21 such as a superconductive magnet is equipped outside a vacuum container 13. An insulator jacket 22 is provided between the body 11 and the support 19 or the device 21 to electrically insulate both of them. The jacket 22 made of porcelain or ceramics has both inside and outside faces painted with conductive paint to form conductive films. The inside conductive film is given the same potential as the body 11 has and the outside conductive film is given ground potential to prevent the occurrence of an air layer on the wall face and the deterioration of withstand voltage.

5. 发明专利

JPH0654541A POWER SUPPLY SYSTEM OF SELF-EXTINGUISHING AC POWER REGULATION 失效
公开(公告)号：JPH0654541A
公开(公告)日：1994-02-25
申请号：JP20002792
申请日：1992-07-27
申请人： JAPAN ATOMIC ENERGY RES INST
发明人： TSUNEOKA MASAKI
IPC分类号： H02M7/155 , H02M7/12 , H05H7/00
摘要： PURPOSE:To provide an AC/DC converter power supply apparatus for the acceleration of an ion beam or an electron beam which has a short-circuit device for load protection and which can control a power necessary for a DC output and, further, when the short-circuit device is operated for the load protection, can cut off the load before an overcurrent is applied to an AC input. CONSTITUTION:In a DC power supply which supplies a power from an AC/DC converter 4 to a load 7 and has a high speed short-circuit device 5 for load protection, an AC power regulator 2 having a self-extinguishing capability is provided on its input system side.

6. 发明专利

JPH04368752A GYROTRON DEVICE 失效
公开(公告)号：JPH04368752A
公开(公告)日：1992-12-21
申请号：JP14337591
申请日：1991-06-14
申请人： JAPAN ATOMIC ENERGY RES INST , TOSHIBA CORP
发明人： TSUNEOKA MASAKI , SAKAMOTO KEIJI , NAGASHIMA TAKASHI , KARIYA TSUYOSHI , OKAZAKI YUKIO
IPC分类号： H01J25/00
摘要： PURPOSE:To provide a gyrotron device capable of stable operation and preventing the hazard of equipment breakdown by absorbing the vibration of a collector part due to the boiling of a cooling water with a bellows so as not to transmit it except a collector part, e.g. a resonant cavity part or an electron gun part. CONSTITUTION:In a gyrotron device, an electron gun part 1 for generating an electron beam, a resonant cavity part 2 for performing the interaction with the electron beam in screw motion, a collector part 4 for capturing the electron beam after the interaction, are sequentially combined; the resonant cavity part and the collector part are independently and mechanically held, and both are held and combined in a vacuum sealing manner with a bellows 6 so as to accomplish the above purpose.

7. 发明专利

JPS61288174A SEARCHING METHOD FOR GROUNDING POINT 失效
公开(公告)号：JPS61288174A
公开(公告)日：1986-12-18
申请号：JP13059985
申请日：1985-06-14
申请人： JAPAN ATOMIC ENERGY RES INST , NISSIN ELECTRIC CO LTD
发明人： SHIMADA RYUICHI , TSUNEOKA MASAKI , KUROIWA YOSHIO , ITO HARUNARI
IPC分类号： G01R31/02
摘要： PURPOSE:To search for a grounding point on an electric power line easily and accurately by allowing a detector to detect magnetic flux produced from the electric power line with a grounding current which flows from an AC power source to the grounding point and transducing it into a sound. CONSTITUTION:If a grounding point 6 is grounded, the grounding current 8 flows through the electric power line 4 from the AC power source 2 to the grounding point 6 to produce intense magnetic flux 10 at its periphery. This magnetic flux 10 is detected by the detector 12 and transduced into the sound by a portable amplifier 14 with headphones which is connected to the detector. An inspector wear an amplifier 14 moves the detector 12 along the electric line 4 while hearing the AC sound from the headphones. At this time, when the detector 12 is put close to the electric power line 4 where the current 8 flows, the AC sound of the power source 2 is heard strongly. When the detector 6 moves beyond the grounding point 6, on the other hand, no current flows there, so almost no AC sound is heard. Thus, the grounding point on the electric power line 4 is searched for easily, speedily, and accurately.

8. 发明专利

JPS61288171A DETECTING METHOD FOR GROUNDING RESISTANCE 失效
公开(公告)号：JPS61288171A
公开(公告)日：1986-12-18
申请号：JP13059885
申请日：1985-06-14
申请人： JAPAN ATOMIC ENERGY RES INST , NISSIN ELECTRIC CO LTD
发明人： SHIMADA RYUICHI , TSUNEOKA MASAKI , KUROIWA YOSHIO
IPC分类号： G01R27/20 , G01R27/18
摘要： PURPOSE:To minimize the adverse influence of electric facilities upon a ground system and to detect its grounding resistance by inducing a high-frequency low voltage on the grounding line of the grounding system through current transformers 10 and 12 for a short time. CONSTITUTION:For example, window type current transformers 10 and 12 are fitted to the grounding line 6 of the grounding system 4 of electric facilities 2 and a driving voltage V2 is applied from a driving power source 14 to the current transformer 10 to induce the high-frequency low voltage V1 on the grounding line 6 for the short time. Consequently, when grounding resistance 8 is generated in the grounding system 4, a current I1 flows through the grounding line 6 and is detected by the current transformer 12 and amplified by an amplifying circuit 16 when necessary. The current resistance value R of the grounding resistance 8 is calculated from R=V1/I1. Thus, the adverse influence upon the grounding system is minimized and the grounding resistance is detected.

9. 发明专利

JPS5824919A POWER SOURCE CONTROLLER 失效
公开(公告)号：JPS5824919A
公开(公告)日：1983-02-15
申请号：JP12280981
申请日：1981-08-04
申请人： JAPAN ATOMIC ENERGY RES INST , MITSUBISHI ELECTRIC CORP
发明人： MATSUKAWA TATSUYA , TSUNEOKA MASAKI , SHIMADA RIYUUICHI , YOSHIDA YASUO , YAMANAKA YOSHINORI , SATOU TOSHIHARU
IPC分类号： G05F1/56 , H02J15/00 , H02M7/162
摘要： PURPOSE:To perform rising and maintenance control of coil current stably with high accuracy, by providing feedback circuits of load current and load voltage in a field weaking control circuit of a power generator in a controller of a power source device performing excitation of magnetic field coils of which a nuclear fusion device is constituted. CONSTITUTION:Electric current flowing in a coil 1 is detected by a current detector 13 and is sent to a signal adder 17 through an amplifier 15. A set value of the coil current is set previously in a current setting device 16, and a deviation between the set value of the setting device 16 and the actual coil current which is inputted through the amplifier 15 is derived by the adder 17. While, a coil voltage detected by a voltage detector 12 is inputted to a signal adder 8 through an amplifier 14 and is added with the set value of a voltage setting device setting the coil voltage and a deviation signal derived by the adder 17 in polarity expressed by the figure. The derived control signal controlls an output of a thyristor exciting circuit 10 through an amplifier 9 and an output of a generator 2 is controlled.

10. 发明专利

JPH10248259A FEEDFORWAED CONTROL APPARATUS 失效
公开(公告)号：JPH10248259A
公开(公告)日：1998-09-14
申请号：JP4950497
申请日：1997-03-05
申请人： JAPAN ATOMIC ENERGY RES INST , MEIDENSHA ELECTRIC MFG CO LTD
发明人： TSUNEOKA MASAKI , ISHIBASHI MASAYUKI , HARA YOJI , FUJITA KAZUHIKO
IPC分类号： G21B1/21 , G21B1/00 , H02M1/08 , H02M7/06 , H02M7/155 , H02M9/00
摘要： PROBLEM TO BE SOLVED: To obtain a feedforward control apparatus which reduces the range of a transient change in a DC voltage. SOLUTION: A voltage which has been set by a setting-voltage setter 71 and a DC voltage which has been detected by an isolated amplifier 42 are input to a deviation detection part 73, and its deviation output is amplified by an amplifier 74 so as to be input to the first positive input end of a multiinput deviation detection part 75. A DC current is input to the first negative input end of the deviation detection part 75, a load current is input to a second negative input end, and the load current is detected by a current detector 76 which is installed at a grounding line 27. In addition, the load current is input to a sample-and-hold circuit 77, and its peak value is supplied to the second positive input end of the deviation detection part 75. When the discharge current of a capacitor 22 is detected by a current detector 78 so as to be supplied to the third positive input end of the deviation detection part 75, a deviation output is obtained at the output of the deviation detection part 75. The deviation output becomes a phase control output via an amplifier 79 and a phase control circuit 80 so as to be supplied to thyristor converters 12, 13 from a gate circuit 81.

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