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1. 发明授权

US3559020A Electric motor controller device for acceleration and deceleration 失效
标题翻译：用于加速和减速的电动马达控制器装置
公开(公告)号：US3559020A
公开(公告)日：1971-01-26
申请号：US3559020D
申请日：1969-08-08
申请人： HITACHI LTD
发明人： IMAIZUMI FUJIMARO , OZAWA TSUTOMU , TSUBOI TAKASI
IPC分类号： B60L15/12 , H02P7/298 , H02P1/20
CPC分类号： H02P7/298 , B60L15/12 , B60L2200/26 , Y02T10/645 , Y02T10/646 , Y02T10/648 , Y10S388/92
摘要： A MOTOR CONTROLLER DEVICE COMRISING A MOTOR, IMPEDANCE MEANS FOR CONTROLLING THE ARMATURE CURRENT OF SAID MOTOR, A PLURALITY OF CONTACTOR MEANS SEQUENTIALLY CLOSED TO SHORT-CIRCUIT SAID IMPEDANCE MEANS AT EACH DESIRED SECTION THEREOF, FIELD CONTROL MEANS FOR CONTROLLING THE FIELD CONDITION OF SAID MOTOR, AND CONTROL MEANS FOR OPERATING AFTER A PREDETERMINED NUMBER OF SAID CONTACTOR MEANS ARE CLOSED, SAID FIELD CONTROL MEANS WHEN EACH OF THE REMAINING CONTACTOR MEANS IS CLOSED.

2. 发明专利

CA919248A CHOPPER CONTROLLING DEVICE FOR D C ROTARY ELECTRIC MACHINE 未知
公开(公告)号：CA919248A
公开(公告)日：1973-01-16
申请号：CA131003
申请日：1971-12-23
申请人： HITACHI LTD
发明人： OZAWA TSUTOMU
IPC分类号： B60L9/00 , H02P1/20
摘要： 1379040 Controlling starting of a DC motor HITACHI Ltd 29 Dec 1971 [29 Dec 1970] 60375/71 Heading H2J A D.C.-motor starting circuit includes series connected, different valued starting resistors, shunted in a predetermined order to keep the motor armature current between preset limits, and a variable resistor including a current chopper, whose effective resistance immediately prior to the shunting of each starting resistor is set to the value of that resistor. In an embodiment, the starting of an electric train, having a D.C. motor 4 which is connected through a circuit-breaker (not shown) and pantograph 2 to an overhead power supply 1, is controlled by shunting starting resistors, 5 to 10, each of different values, by closing switches 11 to 16 by controller 21. This controller also varies the current in a current chopper 81, forming part of the variable resistance 17, that also includes a switch 20 and resistor 19, which is at least as large as the largest starting resistor. Upon starting, the resistors 5 to 10 and 19 are_in circuit and chopper 18 is not conducting. Speed is increased by increasing the conduction period of the chopper 18 until resistor 19 is at least partially short circuited and a minimum armature current (Io, Fig. 5, not shown), is detected. Then the chopper conduction period is reduced so that the variable resistance is equal to the starting resistor 5 to be shunted, the armature current rising smoothly, in a short time such that the motor speed does not increase, until the armature maximum current (Ic) is reached, then switch 11 is closed by controller 21 to shunt resistor 5, the chopper conduction being simultaneously reduced to zero. The chopper conduction is then increased to repeat the cycle for each starting resistor, until, at full speed, resistors 5 to 10 and 19 have been shunted by switches 11 to 16 and 20 respectively. Thus the armature current range is limited to a minimum (Io) and a maximum (Ic), which may be the maximum permissible armature current, allowing the minimum number of starting resistors, and overshoot when shunting the starting resistors is avoided. The switches 11 to 16 may be solenoid operated or SCR switches, and the variable resistance 17 could comprise further switchable resistors in parallel with resistor 19, Fig. 2 (not shown).

3. 发明专利

AU4570689A AN ARRANGEMENT FOR PREVENTING INDUCTIVE INTERFERENCE IN ELECTRIC CAR 未知
公开(公告)号：AU4570689A
公开(公告)日：1990-06-07
申请号：AU4570689
申请日：1989-11-29
申请人： HITACHI LTD
发明人： JIMBO YOSHIJI , OZAWA TSUTOMU
IPC分类号： B60L3/00 , B60L9/00 , B60L9/18 , B60L9/22 , G12B17/02 , H05K9/00
摘要： An arrangement for preventing inductive interference in an electric car (48) having a power receiver (10, 12, 14) for receiving DC power from a feeder line (1) connected to a DC power supply, an inverter (18) connected between the power receiver and a ground side terminal (25) connected to a rail (40) via a wheel (42) for converting the DC power fed from the power supply into AC power, and a motor (32) driven by the output of the inverter is adapted to prevent a high-frequency signal current transmitted from and/or to a signal station from being affected by inductive interference due to switching currents of the inverter flowing from switching elements (20, 22, 24, 26, 28, 30) of the inverter to a return line (46) by way of a capacitance (34) between frame (50) and stator winding of the motor. The inductive interference preventive arrangement has a circuit (52) for making the impedance of an electrical circuit (46, 49, 52) ranging from the motor frame to the ground side terminal without passing through the rail smaller than that of an electrical circuit (38) ranging from the motor frame to the rail by way of wheels (38) driven by the motor.

4. 发明专利

AU607087B2 AN ARRANGEMENT FOR PREVENTING INDUCTIVE INTERFERENCE IN ELECTRIC CAR 未知
公开(公告)号：AU607087B2
公开(公告)日：1991-02-21
申请号：AU4570689
申请日：1989-11-29
申请人： HITACHI LTD
发明人： JIMBO YOSHIJI , OZAWA TSUTOMU
IPC分类号： B60L3/00 , B60L9/00 , B60L9/18 , B60L9/22 , G12B17/02 , H05K9/00
摘要： An arrangement for preventing inductive interference in an electric car (48) having a power receiver (10, 12, 14) for receiving DC power from a feeder line (1) connected to a DC power supply, an inverter (18) connected between the power receiver and a ground side terminal (25) connected to a rail (40) via a wheel (42) for converting the DC power fed from the power supply into AC power, and a motor (32) driven by the output of the inverter is adapted to prevent a high-frequency signal current transmitted from and/or to a signal station from being affected by inductive interference due to switching currents of the inverter flowing from switching elements (20, 22, 24, 26, 28, 30) of the inverter to a return line (46) by way of a capacitance (34) between frame (50) and stator winding of the motor. The inductive interference preventive arrangement has a circuit (52) for making the impedance of an electrical circuit (46, 49, 52) ranging from the motor frame to the ground side terminal without passing through the rail smaller than that of an electrical circuit (38) ranging from the motor frame to the rail by way of wheels (38) driven by the motor.

5. 发明专利

DE68914602T2 未知
公开(公告)号：DE68914602T2
公开(公告)日：1994-08-11
申请号：DE68914602
申请日：1989-11-27
申请人： HITACHI LTD
发明人： JIMBO YOSHIJI , OZAWA TSUTOMU
IPC分类号： B60L3/00 , B60L9/00 , B60L9/18 , B60L9/22
摘要： An arrangement for preventing inductive interference in an electric car (48) having a power receiver (10, 12, 14) for receiving DC power from a feeder line (1) connected to a DC power supply, an inverter (18) connected between the power receiver and a ground side terminal (25) connected to a rail (40) via a wheel (42) for converting the DC power fed from the power supply into AC power, and a motor (32) driven by the output of the inverter is adapted to prevent a high-frequency signal current transmitted from and/or to a signal station from being affected by inductive interference due to switching currents of the inverter flowing from switching elements (20, 22, 24, 26, 28, 30) of the inverter to a return line (46) by way of a capacitance (34) between frame (50) and stator winding of the motor. The inductive interference preventive arrangement has a circuit (52) for making the impedance of an electrical circuit (46, 49, 52) ranging from the motor frame to the ground side terminal without passing through the rail smaller than that of an electrical circuit (38) ranging from the motor frame to the rail by way of wheels (38) driven by the motor.

6. 发明专利

DE68914602D1 未知
公开(公告)号：DE68914602D1
公开(公告)日：1994-05-19
申请号：DE68914602
申请日：1989-11-27
申请人： HITACHI LTD
发明人： JIMBO YOSHIJI , OZAWA TSUTOMU
IPC分类号： B60L3/00 , B60L9/00 , B60L9/18 , B60L9/22
摘要： An arrangement for preventing inductive interference in an electric car (48) having a power receiver (10, 12, 14) for receiving DC power from a feeder line (1) connected to a DC power supply, an inverter (18) connected between the power receiver and a ground side terminal (25) connected to a rail (40) via a wheel (42) for converting the DC power fed from the power supply into AC power, and a motor (32) driven by the output of the inverter is adapted to prevent a high-frequency signal current transmitted from and/or to a signal station from being affected by inductive interference due to switching currents of the inverter flowing from switching elements (20, 22, 24, 26, 28, 30) of the inverter to a return line (46) by way of a capacitance (34) between frame (50) and stator winding of the motor. The inductive interference preventive arrangement has a circuit (52) for making the impedance of an electrical circuit (46, 49, 52) ranging from the motor frame to the ground side terminal without passing through the rail smaller than that of an electrical circuit (38) ranging from the motor frame to the rail by way of wheels (38) driven by the motor.

7. 发明专利

IN173269B An arrangement for preventing inductive interference in electric car 未知
公开(公告)号：IN173269B
公开(公告)日：1994-03-19
申请号：IN978CA1989
申请日：1989-11-27
申请人： HITACHI LTD
发明人： JIMBO YOSHIJI , OZAWA TSUTOMU
IPC分类号： B60L15/00

8. 发明专利

DE3684853D1 未知
公开(公告)号：DE3684853D1
公开(公告)日：1992-05-21
申请号：DE3684853
申请日：1986-10-03
申请人： HITACHI LTD
发明人： MIZOBUCHI TETSUYA , OZAWA TSUTOMU
IPC分类号： B60L9/18 , B60L9/22 , B60L15/28 , H02P27/06
摘要： A main circuit of an electric vehicle using an induction motor is constituted by an invertor (2) for producing three phase AC power having a variable frequency and a variable voltage and a three-phase induction motor (31, 32) supplied with the AC power by the invertor. The rotational speed of the induction motor is detected and a slip frequency signal is added (in power running) or subtracted (in regenerating running) to or from the rotational speed to control the output frequency of the invertor. On the other hand. the output voltage of the invertor is controlled to be in proportion to the output frequency thereof. The output voltage of the invertor is limited in accordance with notch positions of a master controller (6) of the electric vehicle so as to be provided with a voltage notch stopping characteristic of the conveniional electric vehicle. A constant speed notch for producing a constant speed running command is additionally provided in the master controller, and in response to the constant speed running command, the speed command for constant speed running is selected to be a value equal to or a value higher by a predetermined value than an actual speed of the electric vehicle at that time. When the speed of the electric vehicle approaches the speed command for constant speed running, the slip frequency is reduced to realize the constant speed running.

9. 发明专利

DE1940560A1 未知
公开(公告)号：DE1940560A1
公开(公告)日：1970-02-19
申请号：DE1940560
申请日：1969-08-08
申请人： HITACHI LTD
发明人： IMAIZUMI FUJIMARO , OZAWA TSUTOMU , TSUBOI TAKASI
IPC分类号： B60L15/12 , H02P7/298 , H02P1/20

10. 发明专利

JP2000032614A CONTROLLER FOR ELECTRIC CAR 失效
公开(公告)号：JP2000032614A
公开(公告)日：2000-01-28
申请号：JP19838198
申请日：1998-07-14
申请人： HITACHI LTD
发明人： SEKIZAWA TOSHIHIKO , OZAWA TSUTOMU
IPC分类号： B60L13/03 , B60L9/18 , H02P25/06 , H02P5/00
摘要： PROBLEM TO BE SOLVED: To perform optimum control according to route conditions, without providing a mean of detecting the kinds of reaction plates, by correcting a set slip frequency according to the deviation of a real acceleration of an electric car from a command acceleration. SOLUTION: A slip frequency setter 12 sets a slip frequency at which an efficiency becomes maximum in a route near a station, and an acceleration detector 13 computes a real acceleration of a car. And an acceleration required for a designated operation is set by a reference acceleration setter 14. Next the deviation of a real acceleration of the car from the reference acceleration is computed by an adder 15, and a slip frequency is corrected by an integrator 16. Consequently, it becomes unnecessary to provide an apparatus for detecting the kinds of reaction plates newly, and control according to the kinds of the reaction plates becomes feasible, since the slip frequency is corrected on the basis of the deviation of the real acceleration from the reference acceleration corresponding to the operation command.

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