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1. 发明专利

JP2551549B2 失效
公开(公告)号：JP2551549B2
公开(公告)日：1996-11-06
申请号：JP16412683
申请日：1983-09-08
申请人： HITACHI LTD
发明人： TANAMACHI TOKUNOSUKE , IBAMOTO MASAHIKO , OKAMATSU SHIGETOSHI , HORIE SATORU , ABE KINGO
IPC分类号： B60L3/00 , B60L9/16 , B60L9/18 , B60L9/22 , H02P27/06

2. 发明专利

JPS6059904A CONTROLLER OF INDUCTION MOTOR TYPE ELECTRIC RAILCAR 失效
公开(公告)号：JPS6059904A
公开(公告)日：1985-04-06
申请号：JP16412683
申请日：1983-09-08
申请人： HITACHI LTD
发明人： TANAZAKI TOKUNOSUKE , IBAMOTO MASAHIKO , OKAMATSU SHIGETOSHI , HORIE SATORU , ABE KINGO
IPC分类号： B60L3/00 , B60L9/16 , B60L9/18 , B60L9/22 , H02P27/06
摘要： PURPOSE:To enable to stably control without electric vibration even if the operating conditions of an electric railcar is varied by providing means for adjusting the output of electric vibration suppressing means by the conditions. CONSTITUTION:Means 14 for increasing or decreasing the output of electric vibration suppressing means 12 by the voltage Ecf of a capacitor CF and the operating frequency (f) of an inverter 4 is provided, and the frequency (f) is con- trolled by the output. The gain of the means 12 and the means 14 is so set as to be high when the frequency (f) is low and low when it is high as designated by a dotted chain line G1 and two-dotted chain line G2 of a drawing, and to be low (by the dotted chain line G1) when the voltage Es of a trolley wire 1 is high and high (by the two-dotted chain line G2) when the voltage Es of the trolley wire 1 is low. Thus, the gain of the means 12, 14 is always in a stable range. Even if the voltage Es of the trolley wire 1 is varied in this manner, the electric vibration is not generated, but stably controlled.

3. 实用新型

JPS5883993U PROTECTING DEVICE OF GTO INVERTER DEVICE 失效
公开(公告)号：JPS5883993U
公开(公告)日：1983-06-07
申请号：JP17869381
申请日：1981-12-02
申请人： HITACHI LTD
发明人： SUZUKI MASAHITO , IBAMOTO MASAHIKO , NARITA HIROSHI , OKAMATSU SHIGETOSHI , ABE KINGO
IPC分类号： H02H7/122 , H02M1/06 , H02M1/32 , H02M7/515 , H02M1/18

4. 发明专利

JPH02280601A CONTROLLER FOR ELECTRIC VEHICLE 失效
公开(公告)号：JPH02280601A
公开(公告)日：1990-11-16
申请号：JP9732489
申请日：1989-04-19
申请人： HITACHI LTD
发明人： ABE KINGO , ENDO TAKEO , IWATANI SEIICHI
IPC分类号： B60L3/10 , B60L9/18
摘要： PURPOSE:To prevent disablement of acceleration by detecting variation of rotation per unit time of the wheel of accompanying vehicle and switching readhesion control method. CONSTITUTION:When a drive wheel 4 idles due to lowering of frictional coefficient thereof with respect to a rail, the idling is detected through a drive wheel frequency sensor 5 and a control operation operating section 9 performs readhesion control for lowering the torque of a drive motor 6. When a vehicle is not accelerated due to frequent idling, it is detected based on a fact that the variation per unit time of the output frequency from a driven frequency sensor 2 for a driven wheel is lower than a predetermined level, and the idling detection level of the drive wheel frequency sensor 5 is lifted or readhesion control method is modified.

5. 发明专利

JPH02155405A CONTROLLER FOR MOTOR-DRIVEN VEHICLE 失效
公开(公告)号：JPH02155405A
公开(公告)日：1990-06-14
申请号：JP30891888
申请日：1988-12-08
申请人： HITACHI LTD
发明人： KURIHARA SHIRO , ABE KINGO
IPC分类号： B60L9/18 , B60L13/03
摘要： PURPOSE:To enable a predetermined acceleration or deceleration of speed with respect to variations in air gap between a linear induction motor and a reaction plate and the gradient railway line by detecting the real acceleration or deceleration of a train, and controlling the train driving motor so that the real acceleration or deceleration coincides with a target acceleration or deceleration. CONSTITUTION:When a train is moved, an acceleration/deceleration detection circuit 6 detects a real acceleration alpha by an input power drive command 10 and a train speed signal 9. A reference acceleration/deceleration generation circuit 7 generates a target acceleration alphaP, an operation part 4 compares the real acceleration alpha with the alphaF, and sends its deviation to an arithmetic circuit 5. The circuit 5 calculates a control signal with the deviation being zero, and controls an inverter 2. Thus, it can control the train at a predetermined acceleration/deceleration against variations in the air gap between the train linear induction motor and the ground reaction plate and the gradient of railway line.

6. 发明专利

JPS63121475A COOLING APPARATUS FOR INVERTER FOR ELECTRIC ROLLING STOCK 失效
公开(公告)号：JPS63121475A
公开(公告)日：1988-05-25
申请号：JP26379686
申请日：1986-11-07
申请人： HITACHI LTD
发明人： SAITO HIDEJI , HORIE SATORU , ABE KINGO , JINBO YOSHIJI
IPC分类号： H02M7/48
摘要： PURPOSE:To attenuate electromagnetic induction noise, by arranging the load output wires of an inverter close to each other. CONSTITUTION:Semiconductor elements composing an inverter are contained in a cooling unit 5, and the load output terminals U-W of each phase are arranged as one group, and plus and minus terminals connected to a power source are arranged as another group. Then, by arranging wires from the output terminal 4 of the cooling unit to an out-fit terminal 2, close to each other, electromagnetic induction noise generated from the output wires of each phase can be attenuated.

7. 发明专利

JPS63121401A CONTROLLER FOR ELECTRIC ROLLING STOCK 失效
公开(公告)号：JPS63121401A
公开(公告)日：1988-05-25
申请号：JP26378286
申请日：1986-11-07
申请人： HITACHI LTD
发明人： CHIYOU JINKOU , HORIE SATORU , ABE KINGO , SAITO HIDEJI , AMIKURA SEIKI , JINBO YOSHIJI
IPC分类号： B60L3/00
摘要： PURPOSE:To miniaturize the title device and lighten its weight, by dividing a filter circuit into a plurality, and by using optimum instruments for necessary specifications. CONSTITUTION:Power fed from a DC power source 1 is fed to a main motor 2 via a filter circuit and a switching element 3. Then, a filter condenser 7 must be worked according to voltage fluctuation at a point A, and so the oil condenser excellent in high frequency characteristic is used. By a filter condenser 5, voltage fluctuation at a point B is reduced, and so for the condenser 5, the electrolytic capacitor of a capacity larger than that of the oil condenser in case of the same volume is used. For filter reactors 4 and 6, the filter reactor 4 is provided with an intermediate tap. As a result, a filter can be miniaturized and the weight can be lightened.

8. 发明专利

JPH11178103A OVERCURRENT PROTECTION APPARATUS OF CONTROLLER FOR RAILWAY VEHICLE 失效
公开(公告)号：JPH11178103A
公开(公告)日：1999-07-02
申请号：JP34466297
申请日：1997-12-15
申请人： HITACHI LTD
发明人： IDE YUTAKA , ABE KINGO
IPC分类号： B60L3/00 , H02M3/135 , H02M7/48 , H02M7/757
摘要： PROBLEM TO BE SOLVED: To perform the protective operation of the controller of an inverter apparatus as sensing the abnormality of the controller, by comparing the output- current command value issued from its controller with its actual output current, and by operating the overcurrent protection circuit of its controller when its actual output current exceeds the command value in some case, and further, by stopping its operation. SOLUTION: For setting an overcurrent-protection setting value to a comparator 14a, an adder 16 adds a marginal portion to an output-current command value 18 issued from an inverter controlling circuit to apply a resultant addition value S8a to one input terminal of the comparator 14a. Then, when the output signal level of an absolute-value circuit 13 exceeds the output signal level S8a of the adder 16, the comparator 14a is configured to output an overcurrent sensing signal S11. When the overcurrent sensing signal S11 is outputted, the inverter controlling circuit stops the outputting of the on-off signal of a witching element, and a gate driving circuit also stops the outputting of the on-off signal (gate pulse) for driving the switching element to stop the power converting operation of an inverter apparatus.

9. 发明专利

JPH0564458A POWER CONVERTER 失效
公开(公告)号：JPH0564458A
公开(公告)日：1993-03-12
申请号：JP24430391
申请日：1991-08-30
申请人： HITACHI LTD
发明人： ABE KINGO , HORIE SATORU
IPC分类号： H02M1/00 , H02M7/48 , H02M7/515
摘要： PURPOSE:To prevent damage of a power converter from spreading and causing a secondary trouble by detecting the magnitude of reverse bias voltage or current between the control terminal of a gate turn ON thyristor (GTO element) and a reference potential applying terminal and then controlling the power converter based on the detection results. CONSTITUTION:Before a GTO element 6 constituting an inverter unit 3 begins switching operation, a detecting section 9 detects a reverse bias voltage VGK to be applied between the gate and cathode of each GTO element 6 from a reverse bias start signal section 10 through a gate driver 7. Upon detection of an abnormal reverse bias voltage, a gate logic section 8 stops operation of the inverter unit 3, i.e., the switching operation of the GTO element. According to the invention, damage of the inverter unit 3 including the GTO element 6 can be prevented from spreading to cause a secondary trouble.

10. 发明专利

JPH0510001B2 失效
公开(公告)号：JPH0510001B2
公开(公告)日：1993-02-08
申请号：JP20653087
申请日：1987-08-21
申请人： HITACHI LTD
发明人： HORIE SATORU , ABE KINGO , JINBO YOSHIJI , SAITO HIDEJI
IPC分类号： B60L3/00 , B60L3/04

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