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1. 发明专利

JP2004039411A Vacuum circuit breaker 审中-公开
公开(公告)号：JP2004039411A
公开(公告)日：2004-02-05
申请号：JP2002194104
申请日：2002-07-03
申请人： Toshiba Corp , 株式会社東芝
发明人： KIKUCHI HIDEJI , HONMA MITSUTAKA , KAGARA HIROKI , SATO KAZUMASA , ISHIBASHI NAOYUKI , OTAKE SHIRO
IPC分类号： H01H33/66
摘要： PROBLEM TO BE SOLVED: To provide a vacuum circuit breaker capable of stabilizing the breaking performance, enhancing the reliability, and reducing the loss in the vacuum circuit breaker with the use of a commutation device.
SOLUTION: The commutation device 20 is connected in parallel with a vacuum valve 11 of the vacuum circuit breaker. In the commutation device 20; a capacitor 21, a reactor 22, and a commutation current starting switch 24 are serially connected, and further an arrester 23 to be a non-linear resistive element is connected in parallel with this as an energy absorbing device. The capacitance of the capacitor is made not less than 1000 μF, the reactor is made not less than 3 μH, the resonance frequency is made not less than 1000 Hz and less than 2000 Hz, the resistance of the serial circuit consisting of the capacitor, the reactor, and the turned-on commutation current starting switch is made not less than 20 mΩ. The operating voltage (the voltage value at which a current of 1 mA begins to flow) of the energy absorbing device is made 1.5-2.5 times the rated voltage of the system.
COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2004039410A Vacuum circuit breaker 审中-公开
公开(公告)号：JP2004039410A
公开(公告)日：2004-02-05
申请号：JP2002194103
申请日：2002-07-03
申请人： Toshiba Corp , 株式会社東芝
发明人： KIKUCHI HIDEJI , HONMA MITSUTAKA , KAGARA HIROKI , SATO KAZUMASA , ISHIBASHI NAOYUKI , OTAKE SHIRO
IPC分类号： H01H33/66
摘要： PROBLEM TO BE SOLVED: To provide a vacuum circuit breaker capable of stabilizing the breaking performance and reducing the loss during energization in the vacuum circuit breaker with the use of a commutation device.
SOLUTION: The commutation device 10 is connected in parallel with a vacuum valve 11 of the vacuum circuit breaker. In this commutation device 10; a capacitor 12, a reactor 13, a commutation current starting switch 15, and a supersaturated reactor 16 are serially connected, and an arrester 14 to be a non-linear resistive element is connected in parallel with this series circuit as an energy absorbing device.
COPYRIGHT: (C)2004,JPO

3. 发明专利

JPH0515012A CONTROLLING METHOD FOR INDIVIDUAL AXLE OF ELECTRIC MOTOR VEHICLE 失效
公开(公告)号：JPH0515012A
公开(公告)日：1993-01-22
申请号：JP15801391
申请日：1991-06-28
申请人： TOSHIBA CORP
发明人： TOJO WAKICHI , ISHIBASHI NAOYUKI
IPC分类号： B60L9/18 , B60L15/20
摘要： PURPOSE:To eliminate uncomfortable riding feeling by sequentially reducing driving forces of motors for driving a plurality of vehicles for composing a train, from a head at the time of power driving, or delaying generation of the force, sequentially reducing the forces from the rear at the time of braking, or delaying the generation of the force. CONSTITUTION:A plurality of (four in the drawing) induction motors 3 for individually rotating a plurality of drive shafts, are respectively driven by distribution type VVVF type inverters 5. The inverters 5 are controlled by an output signal of a logic device 6 to reduce driving forces of a head vehicle from the motor toward the following vehicle or to delay the generation of the force at the time of power driving. Or, at the time of braking, braking forces are reduced from the motor of the following vehicle toward the motor of the head vehicle or generation of the braking force is delayed. Thus, uncomfortable riding feeling due to push and pull of the vehicles therebetween at the times of power driving and braking of the vehicles, is eliminated.

4. 发明专利

JPH10234111A METAL-ENCLOSED SWITCHGEAR 失效
公开(公告)号：JPH10234111A
公开(公告)日：1998-09-02
申请号：JP3450397
申请日：1997-02-19
申请人： TOSHIBA TRANSPORT ENG KK , TOSHIBA CORP
发明人： TAKAHASHI SHIZUAKI , ISHIBASHI NAOYUKI
IPC分类号： H02B11/12
摘要： PROBLEM TO BE SOLVED: To eliminate restrictions on space for maintenance and inspection services by reducing an installation area. SOLUTION: Four casters 3 are provided, with each wheel positioned in a lateral direction with respect to the central part of the bottom beam 1a of a box 1. To the left and right sides of these casters 3, casters 2 are provided with each wheel positioned in fore-to-aft direction. These casters 2, 3 roll in grooved parts formed on the top surface of guide rails 5 which are arranged in lattice on the mounted surface of the box 1. For the box 1 to be fixed, the bottom ends of stoppers 4 are provided in such a way as to move freely vertically with respect to a bottom beam 1a inserted into fitting cavities structured in the guide rails 5.

5. 发明专利

JPH08205405A CONTROLLER FOR SUBSTATION 失效
公开(公告)号：JPH08205405A
公开(公告)日：1996-08-09
申请号：JP610595
申请日：1995-01-19
申请人： TOSHIBA CORP
发明人： MITSUYOSHI KYO , ISHIBASHI NAOYUKI
IPC分类号： H02J3/00 , B60M3/00 , B61L27/00
摘要： PURPOSE: To suitably control power to be supplied by a substation with a simple calculation even in the case of the state in which a sudden timetable disorder occurs. CONSTITUTION: The controller for a substation comprises storage means 2 for storing the traffic density information (D) of trains, judging means 5 for judging the density level (dlevel) at present time (t) from the information (D), state output means 3 for outputting a service state level di indicating the interval of trains from the level (dlevel) and the line presence state (I) of the trains, and deciding means 6 and control means 7 for deciding a voltage target value when the number of units in a substation is decided from the level (dlevel) and the level (di) and controlling the substation.

6. 发明专利

JPH0880047A RECTIFIER FACILITY FOR ELECTRIC RAILWAY 失效
公开(公告)号：JPH0880047A
公开(公告)日：1996-03-22
申请号：JP21383394
申请日：1994-09-07
申请人： TOSHIBA TRANSPORT ENG KK , TOSHIBA CORP
发明人： TAKAHASHI SHIZUAKI , ISHIBASHI NAOYUKI
IPC分类号： H02M7/06
摘要： PURPOSE: To provide a miniaturized rectifier facility for an electric railway without losing the effects of the reduction of a pulsating current, the inhibition of harmonics or the restraint of a circulating current generated in a rectifier. CONSTITUTION: In a parallel twelve-phase rectifier facility for an electric railway, DC series reactors 3A, 3B connected to two six-phase rectifiers 2A, 2B constituting the parallel twelve-phase rectifier facility respectively and used for controlling a circulating current and one tank 4, in which the two DC series reactors are stored, are provided.

7. 发明专利

JPH07304353A FEEDING VOLTAGE CONTROLLER FOR RAILWAY SUBSTATION 失效
公开(公告)号：JPH07304353A
公开(公告)日：1995-11-21
申请号：JP10014694
申请日：1994-05-13
申请人： TOSHIBA CORP
发明人： MITSUYOSHI KYO , ISHIBASHI NAOYUKI
IPC分类号： B60M3/00
摘要： PURPOSE:To suppress the peak electric power quantity at each substation by determining the feeding charge at each substation through the calculation for optimizing the evaluation function and the range for satisfying the restraint condition, by an optimum feeding charge determining means on the basis of the result of a train situation grasping means and setting the sent-out voltage value to a rectifying device at each substation, on the basis of the determination. CONSTITUTION:The on-line situation and the operation state of a power running train and a regenerative train in a railway road line managed by an objective substation are grasped by a train situation grasping means 2. On the basis of the judgement of the train situation grasping means 2, the feeding charge of each substation is determined by an optimum feeding charge determining means 6 by carrying out the optimization calculation for the feeding charge at each substation for optimizing the evaluation function set by an evaluation function setting means 5 and the range for satisfying the restraint condition which is set by a restraint condition setting means 4. On the basis of the determined optimum feeding charge at each station, the sent-out voltage value is set in a rectifying device 27 in the substation by a sent-out voltage setting means 7 in each substation. Accordingly, the peak electric power at each substation is reduced, and the electric power regeneration can be utilized effectively.

8. 发明专利

JPH1111185A RAILROAD SUBSTATION POWER CONTROL DEVICE 失效
公开(公告)号：JPH1111185A
公开(公告)日：1999-01-19
申请号：JP17034697
申请日：1997-06-26
申请人： TOSHIBA CORP
发明人： MITSUYOSHI KYO , KANAYAMA MICHITAKA , ISHIBASHI NAOYUKI
IPC分类号： H02J3/00 , B60M3/00
摘要： PROBLEM TO BE SOLVED: To increase the efficiency of using electric power by distributing load among substations so that the load may not be allotted to only one of the substations. SOLUTION: This railroad substation power control device integrates at every unit time the electric energy produced by each of plural adjacent substations, using unit-time integrated power computing means 31a, 31b... for the respective substations, and a feeding voltage set value determining means 32 for each substation determines the feeding voltage set value for each of the plurality of substations according to the energy of each substation which is integrated at every unit time and calculated by the unit time integrated power computing means for each substation. Feeding voltage adjustment means 18a, 18b,... control the tapping values of transformers 10a, 10b,... and the control angles of rectifiers 21a, 21b in the plurality of substations so that the feeding voltage set by the feeding voltage set value determining means for each substation can be obtained. Power control is thereby performed so that power is delivered to the substation which consumes great power from the substation which consumes less power.

9. 发明专利

JPH0984203A ELECTRIC RAILROAD REGENERATIVE POWER ABSORBER 失效
公开(公告)号：JPH0984203A
公开(公告)日：1997-03-28
申请号：JP23408295
申请日：1995-09-12
申请人： TOSHIBA TRANSPORT ENG KK , TOSHIBA CORP
发明人： ASHIZAWA YASUSHI , ISHIBASHI NAOYUKI
IPC分类号： B60L7/10
摘要： PROBLEM TO BE SOLVED: To determine regenerative reference voltages so as to make the regenerative electric energies from respective substations uniform by a method wherein a regenerative electric energy regenerated from a regenerating train is measured and stored and the datum of the regenerative electric energy is transmitted to the regenerative power absorbers installed in other substations and regenerative electric energy data are mutually compared and calculated. SOLUTION: A controller which is composed of an integral circuit, an input unit and a memory unit which measure and store a regenerative electric energy regenerated from a regenerating train, a transmission unit which transmits the regenerative electric energy datum which is measured by the integral circuit, the input unit and the memory unit to the regenerative power absorbers installed in other substations and a comparing/setting unit and a control unit which determine and set the regenerative reference voltages of the regenerative power absorbers so as to make the regenerative electric energies from the respective substations uniform is provided. With this constitution, the regenerative power absorbers of the respective substations can be operated in accordance with load balance and the uniform untilization factors can be obtained.

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