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1. 发明专利

GB2135837A Power converting apparatus 未知
公开(公告)号：GB2135837A
公开(公告)日：1984-09-05
申请号：GB8403187
申请日：1984-02-08
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： ANDO TAKEKI , UEDA AKITERU , KUROSAWA TOSHIAKI , KUROHA HIROAKI , INABA HIROMI , NAKASHIMA HAJIME , SHIMA SEIYA , SAKAI YOSHIO
IPC分类号： H02M7/12 , H02M7/155 , H02M7/162 , H02M1/18
摘要： The apparatus includes elements, e.g. GTO's (UGTO, VGTO, WGTO) connected to the positive arms respectively of a full-wave controlled-rectifier bridge circuit rectifying the output of an AC power source (Ea). The current flowing through a load (L) is circulated through a circulating loop when any one of the switching elements is turned off. A plurality of series circuits each including a capacitor (Cf) and a reactor (LF) connected in series is connected across the power supply lines of the AC power source, so that an overvoltage induced in the power source part when any one of the switching elements is turned off can be absorbed by the associated capacitor, and a discharge current discharged with a sharp rise from the capacitor to flow through the circulating loop when the switching element is then turned on is suppressed by the associated reactor. In other embodiments the apparatus chops rectified AC, Fig. 11, or inverts rectified AC, Fig. 12. In each of these latter embodiments, a single series circuit of a capacitor and a reactor is connected across the input power supply lines to the chopper switching element and inverter switching elements. The apparatus may be used in a rail vehicle, Fig. 13, or an elevator, Fig. 14.

2. 发明专利

JPS6194979A Elevator controller 失效
公开(公告)号：JPS6194979A
公开(公告)日：1986-05-13
申请号：JP21636184
申请日：1984-10-17
申请人： Hitachi Ltd , Hitachi Eng Co Ltd
发明人： NAKAJIMA HAJIME , INABA HIROMI , SHIMA KIYOYA , KUROSAWA TOSHIAKI , ANDO TAKEYOSHI , TAKAHASHI HIDEAKI
IPC分类号： G01P3/42 , B66B1/24 , B66B1/30 , B66B3/00 , B66B3/02

3. 发明专利

JPS59163274A Control system of elevator 失效
标题翻译：电梯控制系统
公开(公告)号：JPS59163274A
公开(公告)日：1984-09-14
申请号：JP3575883
申请日：1983-03-07
申请人： Hitachi Ltd , Hitachi Eng Co Ltd
发明人： INABA HIROMI , NAKAJIMA HAJIME , ANDOU TAKEYOSHI , KUROSAWA TOSHIAKI , SHIMA KIYOYA
IPC分类号： B66B1/28 , B66B1/30

4. 发明专利

JPS59149285A Drive for elevator on service interruption 失效
标题翻译：驱动电梯在服务中断
公开(公告)号：JPS59149285A
公开(公告)日：1984-08-27
申请号：JP1876483
申请日：1983-02-09
申请人： Hitachi Ltd , Hitachi Eng Co Ltd
发明人： KUROSAWA TOSHIAKI , UEDA AKITERU , ANDOU TAKEYOSHI , KUROBA HIROAKI , INABA HIROMI , NAKAJIMA HAJIME , SHIMA KIYOYA , SAKAI YOSHIO
IPC分类号： B66B5/02 , B66B1/30 , B66B5/00

5. 发明专利

JPS58215980A Controller for motor 失效
标题翻译：电机控制器
公开(公告)号：JPS58215980A
公开(公告)日：1983-12-15
申请号：JP9769382
申请日：1982-06-09
申请人： Hitachi Eng Co Ltd , Hitachi Ltd
发明人： INABA HIROMI , ANDOU TAKEYOSHI , KUROSAWA TOSHIAKI , NAKAJIMA HAJIME , SHIMA KIYOYA , TAKAHASHI HIDEAKI
IPC分类号： H02P29/00 , H02P7/292 , H02P23/00
CPC分类号： H02P23/0077
摘要： PURPOSE:To enable a smooth control of a motor by suppressing the variation of a torque command due to the variation in the computed speed or acceleration using a pulse counted value. CONSTITUTION:A CPU701 of a microcomputer board 7 takes the difference between the speed command and the motor speed, proportionally controls or integrates the difference, or functionally varies the proportional gain in response to the magnitude of the speed deviation to generate torque command. Further, the torque command is compared with the loaded current value, and a firing command is applied to a thyristor 5 to cancel the deviation. The variation in the torque command can be suppressed by using means for varying the proportional gain as described above, and the motor can be smoothly controlled.
摘要翻译：目的：通过使用脉冲计数值通过抑制由于计算出的速度或加速度的变化而导致的转矩指令的变化，能够平稳地控制电动机。构成：微机电路板7的CPU701取速度指令和电机速度之间的差异，成比例地控制或积分该差异，或者根据速度偏差的大小来功能地改变比例增益以产生转矩指令。此外，将转矩指令与负载电流值进行比较，并且向晶闸管5施加点火命令以消除偏差。如上所述，可以通过使用用于改变比例增益的装置来抑制转矩指令的变化，并且可以平稳地控制电动机。

6. 发明专利

JPS5882969A CONTROLLER FOR ELEVATOR JUXTAPOSED 失效
公开(公告)号：JPS5882969A
公开(公告)日：1983-05-18
申请号：JP18244781
申请日：1981-11-13
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： NAKAJIMA HAJIME , SHIMA KIYOYA , ANDOU TAKEYOSHI , KUROSAWA TOSHIAKI , KUROBA HIROAKI , INABA HIROMI , KATAYAMA YASUNORI , SAKAI YOSHIO
IPC分类号： B66B1/24 , B66B1/18 , B66B1/28 , B66B1/30

7. 发明专利

JPS61251469A POWER CONVERTER 失效
公开(公告)号：JPS61251469A
公开(公告)日：1986-11-08
申请号：JP8867585
申请日：1985-04-26
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： KUROSAWA TOSHIAKI , SHIMA KIYOYA , ANDO TAKEYOSHI , INABA HIROMI , OUCHI NAOYUKI
IPC分类号： H02M7/145 , H02M1/14 , H02M7/12 , H02M7/155 , H02M7/66 , H02M7/757
摘要： PURPOSE:To obtain a preferable power source current waveform absorbing harmonic components near the chopping frequency of a GTO by adding a compensator having capacitors, inductors and resistors. CONSTITUTION:When a GTO turns OFF a current, an overvoltage is generated by inductances Lu-Lw of a power source side, and absorbed by capacitors Cu-Cw. Further, the fact that harmonic components generated from a power generator are large only near the chopping frequency of GTO (UGP-WGN) is taken into consideration, and the harmonic components are absorbed by a compensator Cp having capacitors C, inductors L and resistor R. Thus, the used capacitor capacitance can be largely reduced, and the current waveform of a power source is improved.

8. 发明专利

JPS59149278A Measuring device for state of guide rail for elevator 失效
标题翻译：用于电梯的导轨状态的测量装置
公开(公告)号：JPS59149278A
公开(公告)日：1984-08-27
申请号：JP1876583
申请日：1983-02-09
申请人： Hitachi Ltd , Hitachi Eng Co Ltd
发明人： INABA HIROMI , ITOU MASANOBU , ANDOU TAKEYOSHI , KUROSAWA TOSHIAKI , NAKAJIMA HAJIME
IPC分类号： B66B3/02 , B66B1/06

9. 发明专利

JPS59103579A Power converter 失效
标题翻译：电源转换器
公开(公告)号：JPS59103579A
公开(公告)日：1984-06-15
申请号：JP21059082
申请日：1982-12-02
申请人： Hitachi Eng Co Ltd , Hitachi Ltd
发明人： NAKAJIMA HAJIME , SHIMA KIYOYA , ANDOU TAKEYOSHI , KUROSAWA TOSHIAKI , KATAYAMA YASUNORI , KUROBA HIROAKI , INABA HIROMI
IPC分类号： H02M1/08 , H02M7/12 , H02M7/155
CPC分类号： H02M7/155
摘要： PURPOSE:To eliminate the damage of a switching element by generating a pulse of necessary minimum time duration for ON and OFF of the switching element in synchronization with an input signal of chopping means. CONSTITUTION:A chopping pulse from a chopping pulse generator 11 is inputted to OR circuits 29, 43. The minimum pulse width producing circuit 33, 34 generate a pulse of necessary minimum time duration from turn ON to turn OFF of a switching element and from the turn OFF to the turn ON in synchronization with the rise of the chopping pulse. This pulse is applied to a gate pulse generator 12 which controls the switching element through the OR circuit 43.
摘要翻译：目的：通过与切断装置的输入信号同步地产生开关元件的ON和OFF的必要最小持续时间的脉冲来消除开关元件的损坏。构成：来自斩波脉冲发生器11的斩波脉冲被输入到OR电路29,43。最小脉冲宽度产生电路33,34产生一个必要的最小持续时间的脉冲，从接通开关到开关元件的截止，与斩波脉冲的上升同步，使ON转为ON。该脉冲被施加到通过OR电路43控制开关元件的栅极脉冲发生器12。

10. 发明专利

JPS5969377A Controller for elevator 失效
公开(公告)号：JPS5969377A
公开(公告)日：1984-04-19
申请号：JP17835482
申请日：1982-10-13
申请人： Hitachi Ltd , Hitachi Eng Co Ltd
发明人： INABA HIROMI , NAKAJIMA HAJIME , ANDOU TAKEYOSHI , KUROSAWA TOSHIAKI , KUROBA HIROAKI , SHIMA KIYOYA , TAKAHASHI HIDEAKI
IPC分类号： H02P7/292 , B66B1/28 , B66B1/30

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