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31. 实用新型

JPS6038092U 失效
公开(公告)号：JPS6038092U
公开(公告)日：1985-03-16
申请号：JP12958383
申请日：1983-08-22
IPC分类号： H02P25/26 , H02P5/405

32. 发明专利

JPS5970196A Control system for wound-rotor type induction motor 失效
标题翻译：滚子式感应电动机控制系统
公开(公告)号：JPS5970196A
公开(公告)日：1984-04-20
申请号：JP17971682
申请日：1982-10-15
申请人： Fuji Electric Co Ltd
发明人： NAKAHARA KAZUHITO , KUSUMOTO SATOSHI
IPC分类号： H02P23/00 , H02P25/26
CPC分类号： H02P25/26
摘要： PURPOSE:To enable an accurate secondary current control by simulating the secondary current by calculation from a detected current value and an external resistance constant. CONSTITUTION:Resistors 4a-4c are inserted between an induction machine 1 and a rectifier 5 for converting the secondary current into a DC, a switch 6 for shortcircuiting and opening the rectifier 5 is provided, the secondary current of a DC machine is varied by opening or closing the switch 6 to control the output torque or the speed. In this control, a current detector 3 is provided between the rectifier 5 and the switch 6, and a current calculator 9 for simulating the secondary current of the induction machine at the OFF time of the switch 6 is provided from the circuit constants of the detected current I1, the induction machine 1 and resistors 4a-4c.
摘要翻译：目的：通过从检测到的电流值和外部电阻常数计算来模拟二次电流，以实现准确的二次电流控制。构成：将电阻器4a-4c插入到感应电机1和整流器5之间，用于将二次电流转换成DC，设置短路开关6并打开整流器5，直流电机的次级电流通过打开或关闭开关6以控制输出转矩或速度。在该控制中，电流检测器3设置在整流器5和开关6之间，并且在开关6的断开时刻模拟感应电机的次级电流的电流计算器9根据检测到的电路常数电流I1，感应电机1和电阻器4a-4c。

33. 发明专利

JPS5937897A Control device for induction motor 失效
标题翻译：电感电机控制装置
公开(公告)号：JPS5937897A
公开(公告)日：1984-03-01
申请号：JP14619782
申请日：1982-08-25
申请人： Toshiba Corp
发明人： HIRATA AKIO
IPC分类号： H02P25/26
CPC分类号： H02P25/26
摘要： PURPOSE:To continuously control the proportional transition of generated torque of an induction motor and to alleviate the pulsation of the generated torque by providing a contactless switch and an impedance element in the secondary side. CONSTITUTION:A 3-phase full-wave rectifier 4 is connected to the secondary terminal 3 of an induction motor 1, and a contactless switch 5 is connected between the DC terminals of the rectifier 4. Since an impedance element 6 is connected at a resistance element as a center in parallel with the switch 5, the generator torque of a motor 1 does not abruptly decrease while the switch 5 is interrupted. Accordingly, the generated torque is not largely pulsated.
摘要翻译：目的：持续控制感应电机产生转矩的比例转换，并通过在次级侧设置非接触式开关和阻抗元件来减轻产生转矩的脉动。构成：三相全波整流器4连接到感应电动机1的次级端子3，非接触式开关5连接在整流器4的直流端子之间。由于阻抗元件6以电阻元件作为与开关5并联的中心，当开关5中断时，电动机1的发电机转矩不会突然减小。因此，产生的转矩不会大幅度地脉动。

34. 发明专利

JPS596596B2 JPS596596B2 - 失效
公开(公告)号：JPS596596B2
公开(公告)日：1984-02-13
申请号：JP5913179
申请日：1979-05-16
申请人： Hitachi Ltd
发明人： ISHIBASHI AKIRA , HAYASHI KAZUMI
IPC分类号： H02P23/00 , H02P25/26 , H02P27/05 , H02P29/04
CPC分类号： H02P21/09 , H02P23/08

35. 发明专利

JPS5866596A VARIABLE SPEED MOTOR 失效
公开(公告)号：JPS5866596A
公开(公告)日：1983-04-20
申请号：JP16242181
申请日：1981-10-12
申请人： TAKITA MICHIYASU , TAKITA YOSHISUKE
发明人： TAKITA YOSHISUKE , TAKITA MICHIYASU
IPC分类号： H02P25/26 , H02P7/62
摘要： PURPOSE:To arbitrarily regulate the speed of a motor without loss by providing a main coil and an auxiliary coil on the rotor of the motor and feeding back a power generated at the main coil from the auxiliary coil to the stator coil in response to the degree of the slip. CONSTITUTION:A coil 2 wound on a stator core is connected to a power source, thereby generating a rotary field. A coil 4 is wound on a rotor core, is divided into a main coil W1 and an auxiliary coil W2. The courrent flowed when the circuit connected in series in reverse polarity with the coils W1, W2 is shortcircuited or the current flowed when the coil W2 is shortcircuited is set to become lower than 1/2 of the current flowed when the coil W1 is shortcircuited. A switching element 5A shortcircuits the coil W1, and a switching element 5B shortcircuits either the circuit connected in reverse polarity with the coils W1, W2 or the coil W2. These two sets of switching elements 5A, 5B are alternately conducted, and the conducting width is varied, thereby regulating the rotating speed.

36. 发明专利

JPS56123788A CONTROL UNIT FOR INDUCTION MOTOR 失效
公开(公告)号：JPS56123788A
公开(公告)日：1981-09-29
申请号：JP2669880
申请日：1980-03-05
申请人： HITACHI LTD
发明人： SEKIYAMA YOSHIO
IPC分类号： H02P23/00 , H02P23/07 , H02P25/26
摘要： PURPOSE:To make an acceleration rate stable and obtain a smooth acceleration, by controlling an operating motor that drives a secondary resistor to have a variable speed corresponding to an intensity of a primary current of an induction motor. CONSTITUTION:When a value of speed command SP is given to a motor 1, a regulator 11 closes a contact 11a1. Then a command valve VP of a speed command circuit 16 is applied to a comparator 19, and with a deviation from an actual value VF applied to a phase control circuit 20 an operating motor 13 is driven. At the time, the circuit 16 gives an output so that the weaker a primary current I1 becomes the greater the value of speed command VP becomes. Therefore when the motor 1 is in a state of accelerated speed, a motor 13 is driven with variable speed by an intensity of the primary current so that a speed control corresponding to an acceleration current can be performed. If the load is greatly changed or the set speed SP is surpassed by some over-performances of a liquid resistor, an output of an amplifier 17 changes greatly a value of the liquid resistor to cause the motor 13 to rotate reversely through a control amplifier 18.

37. 发明专利

JPS5646682A SECONDARY RESISTANCE SWITCHING CIRCUIT 失效
公开(公告)号：JPS5646682A
公开(公告)日：1981-04-27
申请号：JP12075479
申请日：1979-09-21
申请人： HITACHI LTD
发明人： KOUNO KIMIO
IPC分类号： H02P23/00 , H02P25/26
摘要： PURPOSE:To enable a stable speed control in the whole speed range irrespective of the load size by a method wherein a structure that varifies a secondary resistance switch timing according to the size of load is provided in a wound-rotor type induction motor is which the first voltage is controlled. CONSTITUTION:In the wound-rotor induction motor 3, along with the first voltage is controlled by a thyristor converter 2, a secondary resistance 4 is controlled in a secondary resistance switching circuit 14. At this time, in the secondary resistance switching circuit 14, a speed feed back signal VSB is compared with level setters 22-25 and comparators 26-29 to imput to logical elements 30-33, a switching signal VCH is being obtained. Accordingly, the timing of the switching signal is depended upon the scale of an input signal at a automatic pulse generator 9, the speed control can be performed in a widrange irrespective of the load scale.

38. 发明专利

JPS55153289A SPEEDDCONTROL DEVICE 失效
公开(公告)号：JPS55153289A
公开(公告)日：1980-11-29
申请号：JP5913179
申请日：1979-05-16
申请人： HITACHI LTD
发明人： ISHIBASHI AKIRA , HAYASHI KAZUMI
IPC分类号： H02P23/00 , H02P21/18 , H02P21/24 , H02P23/07 , H02P23/24 , H02P25/26 , H02P27/04 , H02P27/05 , H02P29/04
摘要： PURPOSE:To make the operation at a predetermined speed possible even though a power-supply voltage is varied in the case the operation is controlled depending on the secondary voltage of a wire-wound induction motor by proportionately varying the value of the command signal at the same rate as the variation of the secondary voltage. CONSTITUTION:The speed of rotation is controlled by feeding back the power generated in the secondary side of a wire-wound induction motor 1 to the primary side by a stationary Scherbius device 24. At this time, a power supply 3 is connected to a rotating-speed command means 19 containing a rectifier 9 without a stabilizing means, a voltage divider 11, and a speed setter 12 which generates a command signal depending on the voltage from the voltage divider 11. The output from the rotating-speed-command means 19 and the speed signal from a speed sensing means 13 are given to a comparator 16, thereby the triggering angle of an inverter 21 is controlled. Since the command signal varies at the same rate as the variation of the secondary voltage even though the secondary voltage is varied due to the variation of the power-supply voltage, the stable operation can be continued at a predetermined rotating speed.

39. 实用新型

JPS557564U 失效
公开(公告)号：JPS557564U
公开(公告)日：1980-01-18
申请号：JP8951278
申请日：1978-06-29
IPC分类号： H02P1/34 , H02P25/26 , H02P7/36

40. 实用新型

JPS5470479U 失效
公开(公告)号：JPS5470479U
公开(公告)日：1979-05-19
申请号：JP14050377
申请日：1977-10-18
IPC分类号： H02K17/42 , G01P3/46 , H02K17/30 , H02P25/26 , H02P5/34

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