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11. 发明专利

JPS5912056A Controller for direct current elevator 失效
标题翻译：直流电机的控制器
公开(公告)号：JPS5912056A
公开(公告)日：1984-01-21
申请号：JP11982782
申请日：1982-07-12
申请人： Hitachi Ltd , Hitachi Eng Co Ltd
发明人： INABA HIROMI , ANDOU TAKEYOSHI , KUROSAWA TOSHIAKI , NAKAJIMA HAJIME , SHIMA KIYOYA , TAKAHASHI HIDEAKI
IPC分类号： H02P7/298 , B66B1/28 , B66B1/30

12. 发明专利

JPS5883582A CONVERTER DEVICE 失效
公开(公告)号：JPS5883582A
公开(公告)日：1983-05-19
申请号：JP18245181
申请日：1981-11-13
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： NAKAJIMA HAJIME , SHIMA KIYOYA , ANDOU TAKEYOSHI , KATAYAMA YASUNORI , KUROSAWA TOSHIAKI , KUROBA HIROAKI , INABA HIROMI , SAKAI YOSHIO
IPC分类号： H02M7/06 , H02M7/12 , H02M7/155
摘要： PURPOSE:To reduce the harmonic wave of a converter which controls the opening and closing of a switching element with a specific frequency by inserting a filter between a converter bridge and a polyphase AC power source. CONSTITUTION:A filter 16 is inserted between a converter bridge 15 and a 3- phase AC power source 1. When the filter 16 is thus inserted between the bridge 15 and th power source 1 to reduce the harmonic wave in this case, the harmonic wave in the vicinity of the resonance frequency of the element forming the filter becomes large. Accordingly, the set of the resonance frequency to 6n+ or -1 times of the power source frequency contained in the AC side current is avoided so as not to increase the harmonic wave of the frequency of 6n+ or -1 times of the power source frequency, thereby reducing the harmonic wave.

13. 发明专利

JPS5882971A CONTROLLER FOR DIRECT CURRENT ELEVATOR 失效
公开(公告)号：JPS5882971A
公开(公告)日：1983-05-18
申请号：JP18245381
申请日：1981-11-13
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： KUROBA HIROAKI , SHIMA KIYOYA , ANDOU TAKEYOSHI , KUROSAWA TOSHIAKI , INABA HIROMI , KATAYAMA YASUNORI , NAKAJIMA HAJIME , SAKAI YOSHIO
IPC分类号： B66B1/24 , B66B1/28 , B66B1/30 , H02P7/292 , H02P7/298

14. 发明专利

JPS60194761A Power converter 失效
标题翻译：电源转换器
公开(公告)号：JPS60194761A
公开(公告)日：1985-10-03
申请号：JP4706984
申请日：1984-03-14
申请人： Hitachi Eng Co Ltd , Hitachi Ltd
发明人： KUROSAWA TOSHIAKI , SHIMA KIYOYA , ANDOU TAKEYOSHI , INABA HIROMI , NAKAJIMA HAJIME , MITSUNE SHIYUNSUKE
IPC分类号： H02M7/145 , H02H7/125 , H02M7/12 , H02M7/155 , H02M7/162
CPC分类号： H02M7/1623 , H02H7/1252
摘要： PURPOSE: To enhance the stability by absorbing an overvoltage due to the inductance at a power source side by a filter capacitor, and suppressing the current change rate of a discharging current of the capacitor by a reactor, thereby suppressing an overcurrent and an overvoltage.
CONSTITUTION: A filter circuit for absorbing the overvoltage of a power source side when a gate turn OFF thyristor (GTO) is chopped has only capacitors CF
1 ∼ CF
3 . When the current change rates of the discharging currents from the capacitors CF
1 ∼CF
3 are suppressed, and reactors LGU, LGV, LGW for suppressing the variations in the voltage between the anode and the cathode of a thyristor of blocking state are simultaneously connected in series with the GTOs, respectively. The overvoltages generated from the reactors LGU, LGV, LGW are constructed to be absorbed by a snubber circuit.
COPYRIGHT: (C)1985,JPO&Japio
摘要翻译：目的：通过由滤波电容器的电源侧的电感吸收过电压，抑制电抗器的放电电流的电流变化率，从而抑制过电流和过电压来提高稳定性。构成：当栅极截止晶闸管（GTO）被切断时，用于吸收电源侧的过电压的滤波器电路仅具有电容器CF1-CF3。当抑制来自电容器CF1-CF3的放电电流的电流变化率被抑制，并且用于抑制阻塞状态的晶闸管的阳极和阴极之间的电压变化的电抗器LGU，LGV，LGW同时与 GTOs。由反应堆LGU，LGV，LGW产生的过电压被缓冲电路吸收。

15. 发明专利

JPS59148569A Power converter 失效
标题翻译：电源转换器
公开(公告)号：JPS59148569A
公开(公告)日：1984-08-25
申请号：JP1876383
申请日：1983-02-09
申请人： Hitachi Eng Co Ltd , Hitachi Ltd
发明人： ANDOU TAKEYOSHI , UEDA AKITERU , KUROSAWA TOSHIAKI , KUROBA HIROAKI , INABA HIROMI , NAKAJIMA HAJIME , SHIMA KIYOYA , SAKAI YOSHIO
IPC分类号： H02M7/12 , H02M7/155 , H02M7/162
CPC分类号： H02M7/155 , H02M7/162
摘要： PURPOSE: To suppress the overvoltage of a power converter at the current interrupting or conducting time by providing a voltage absorber connected in series with a capacitive element and an inductive element at the side of a power source when power converting by switching means having a current interrupting function.
CONSTITUTION: A converter COM in which a GTO, UGTO, VGTO, WGTO and thyristors U2, V2, W2 are connected to a full-wave bridge circuit is connected to a 3-phase power source Ea, and power is supplied to a load L such as a DC motor. A voltage absorber VA in which a capacitor CF and a reactance LF are connected in series is connected between power lines near the anodes of the GTOs. Therefore, a circulating current 2 is suppressed by the overvoltage at the load side at the current interrupting time, the overvoltage is effectively absorbed by the capacitor CF at the interrupting time at the power source side and by the reactance LF at the conducting time after the interruption, thereby avoiding the increase in the capacity of the converter COM.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：通过在电源断开的开关装置进行功率转换时，通过提供与电容元件和电感元件串联连接的电压吸收器来抑制电流转换器在电流中断或导通时间的过电压功能。构成：将GTO，UGTO，VGTO，WGTO和晶闸管U2，V2，W2连接到全波桥电路的A转换器COM连接到三相电源Ea，并且将电力供应到负载L 例如直流电动机。将电容器CF和电抗LF串联连接的电压吸收器VA连接在GTO的阳极附近的电力线之间。因此，在电流中断时间，通过负载侧的过电压来抑制循环电流2，在电源侧的中断时间，电容器CF有效地吸收过电压，在电源侧的导通时间之后，通过电抗LF 中断，从而避免转换器COM容量的增加。

16. 发明专利

JPS5882973A CONTROLLER FOR DIRECT CURRENT ELEVATOR 失效
公开(公告)号：JPS5882973A
公开(公告)日：1983-05-18
申请号：JP18245581
申请日：1981-11-13
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： KUROBA HIROAKI , KATAYAMA YASUNORI , ANDOU TAKEYOSHI , KUROSAWA TOSHIAKI , INABA HIROMI , NAKAJIMA HAJIME , SHIMA KIYOYA , SAKAI YOSHIO
IPC分类号： B66B1/24 , B66B1/28 , B66B1/30 , H02P7/298

17. 发明专利

JPS5882970A CONTROLLER FOR DIRECT CURRENT ELEVATOR 失效
公开(公告)号：JPS5882970A
公开(公告)日：1983-05-18
申请号：JP18245081
申请日：1981-11-13
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： ANDOU TAKEYOSHI , KATAYAMA YASUNORI , KUROSAWA TOSHIAKI , INABA HIROMI , KUROBA HIROAKI , NAKAJIMA HAJIME , SHIMA KIYOYA , SAKAI YOSHIO
IPC分类号： B66B1/24 , B66B1/28 , B66B1/30 , H02M7/06 , H02M7/12 , H02M7/155 , H02P7/298

18. 发明专利

JPH02206366A POWER CONVERTER CONTROLLER 失效
公开(公告)号：JPH02206366A
公开(公告)日：1990-08-16
申请号：JP2266489
申请日：1989-02-02
申请人： HITACHI LTD , HITACHI ELEVATOR ENG & SERVICE , HITACHI ENG CO LTD
发明人： INABA HIROMI , HOKARI SADAO , ANDO TAKEYOSHI , KUROSAWA TOSHIAKI , FUKUDA SATORU , OUCHI NAOYUKI
IPC分类号： H02M7/48
摘要： PURPOSE:To prevent the increase of memory, etc., the torque ripple of a motor in an inverter control, and a pulling out of synchronism in a converter control by outputting output pulse data through avoiding a normal route in case of emergency. CONSTITUTION:The title apparatus is composed of a current type converter part 3 for converting AC of a three-phase AC power supply 1 into DC, a current- type inverter part 5 for converting DC into AC and driving an induction motor 7 being a load, and one-chip microcomputers 10, 11 for controlling a power converter. The one-chip microcomputers 11 is constituted in almost the same manner as the one-chip microcomputer 10. A frequency command omega1* and a phase command theta* are read from an input port 101 and a pulse width is determined by reference to a data table and outputted to an output port 106 in normal cases. In case of emergency, no comparison with data is made so that the commands are outputted directly to the output port 106.

19. 发明专利

JPS61173667A POWER CONVERTER 失效
公开(公告)号：JPS61173667A
公开(公告)日：1986-08-05
申请号：JP1091785
申请日：1985-01-25
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： H02M1/14
摘要： PURPOSE:To reduce the harmonic wave current of a power source side by providing a circuit for absorbing the harmonic wave current generated by the operation of an AC/DC converter in parallel with an overvoltage absorber. CONSTITUTION:A compensator CP is used to suppress a harmonic wave current of a power source side generated by a resonance phenomenon. The relationship between the capacitor C and the inductance L of the compensator is selected to match the resonance frequency f0 of the inductance Lu of the power source and the capacitor Cu for absorbing an overvoltage, and when a resistor R is regulated optimally, the harmonic wave current of the frequency f0 can be absorbed. As a result, the harmonic wave current generated at the power source current can be suppressed by the resonance phenomenon of the inductances Lu-Lw of the power source side and the capacitors Cu-Cw for absorbing the overcurrent.

20. 发明专利

JPS6194982A Speed-command generator for elevator 失效
公开(公告)号：JPS6194982A
公开(公告)日：1986-05-13
申请号：JP21411784
申请日：1984-10-15
申请人： Hitachi Ltd , Hitachi Eng Co Ltd
发明人： INABA HIROMI , SHIMA KIYOYA , ANDO TAKEYOSHI , KUROSAWA TOSHIAKI , NAKAJIMA HAJIME , TAKAHASHI HIDEAKI , HIDA TOSHIMITSU
IPC分类号： B66B1/28 , B66B1/30

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