公开(公告)号：EP1152520B1

公开(公告)日：2008-07-02

申请号：EP01109397.8

申请日：2001-04-19

申请人： Hitachi, Ltd.

发明人： Sakai, Keijiro ,  Okuyama, Toshiaki ,  Nakatsu, Kinya ,  Ishida, Seiji ,  Fujii, Hiroshi ,  Kato, Junji ,  Hiraga, Masahiro

IPC分类号： H02M7/48

CPC分类号： H02M7/48 ,  H02M7/53875 ,  H02P27/08

公开(公告)号：EP1152520A3

公开(公告)日：2003-12-03

申请号：EP01109397.8

申请日：2001-04-19

申请人： Hitachi, Ltd.

发明人： Sakai, Keijiro ,  Okuyama, Toshiaki ,  Nakatsu, Kinya ,  Ishida, Seiji ,  Fujii, Hiroshi ,  Kato, Junji ,  Hiraga, Masahiro

IPC分类号： H02M7/48

CPC分类号： H02M7/48 ,  H02M7/53875 ,  H02P27/08

摘要： An inverter device in the present invention comprises a three-phase inverter (2) for converting DC electric power into AC power for supplement to an AC electric motor (3) and a control device (4 - 11) operatively associated therewith, and said control device includes a phase current detection section (7, 8) for outputting a phase current waveform based on a DC input current and an operational processor section (4 - 6, 10, 11) for performing based on said phase current waveform operational processing for control of said inverter device. Thereby, the inverter device can be constructed to be very compact.

摘要翻译： 本发明的逆变器装置包括一个三相逆变器（2），用于将直流电功率转换为交流电，以补充交流电动机（3）和与其可操作地相关联的控制装置（4-11），所述控制 装置包括用于基于直流输入电流输出相电流波形的相电流检测部分（7,8）和用于基于所述相电流波形的操作处理进行控制的操作处理器部分（4,6 - 10,11） 的所述逆变器装置。 因此，逆变器装置可以被构造成非常紧凑。

公开(公告)号：EP1251631A3

公开(公告)日：2003-12-10

申请号：EP02007511.5

申请日：2002-04-02

申请人： Hitachi, Ltd.

发明人： Sakai, Keijirou ,  Okuyama, Toshiaki ,  Nakatsu, Kinya ,  Ishida, Seiji ,  Fujii, Hiroshi ,  Kato, Junji ,  Hiraga, Masahiro

IPC分类号： H02M7/519 ,  H02M1/12

CPC分类号： H02M1/4233 ,  H02M1/4216 ,  H02M2001/0012 ,  Y02B70/126

摘要： A single-phase PWM converter system in accordance with the present invention employs a sample-and-hold circuit which samples and holds a direct current in the state wherein one of two-phase gate signals of a positive or negative side arm is ON and the other phase is OFF, determines the sign of an output of the sample-and-hold circuit according to the two-phase gate condition, detects a phase current at the input side of the converter, and controls a voltage at the input side of the converter so that the detected current value agrees with a power supply current command. Further, a three-phase PWM converter system in accordance with the present invention detects the effective current and the ineffective current of the power supply current from the direct current, and based on the values, controls the PWM converter so that the sine wave power supply current whose power supply power factor is 1 is provided.

公开(公告)号：EP1251631A2

公开(公告)日：2002-10-23

申请号：EP02007511.5

申请日：2002-04-02

申请人： Hitachi, Ltd.

发明人： Sakai, Keijirou ,  Okuyama, Toshiaki ,  Nakatsu, Kinya ,  Ishida, Seiji ,  Fujii, Hiroshi ,  Kato, Junji ,  Hiraga, Masahiro

IPC分类号： H02M7/519 ,  H02M1/12

CPC分类号： H02M1/4233 ,  H02M1/4216 ,  H02M2001/0012 ,  Y02B70/126

摘要： A single-phase PWM converter system in accordance with the present invention employs a sample-and-hold circuit which samples and holds a direct current in the state wherein one of two-phase gate signals of a positive or negative side arm is ON and the other phase is OFF, determines the sign of an output of the sample-and-hold circuit according to the two-phase gate condition, detects a phase current at the input side of the converter, and controls a voltage at the input side of the converter so that the detected current value agrees with a power supply current command.
Further, a three-phase PWM converter system in accordance with the present invention detects the effective current and the ineffective current of the power supply current from the direct current, and based on the values, controls the PWM converter so that the sine wave power supply current whose power supply power factor is 1 is provided.

摘要翻译： 根据本发明的单相PWM转换器系统采用采样和保持电路，其采样和保持直流电的状态，其中正或负侧臂的两相门信号之一为ON， 其他相位为OFF，根据两相门条件确定采样保持电路的输出的符号，检测转换器输入侧的相电流，并控制转换器的输入侧的电压 转换器，使得检测到的电流值与电源电流指令一致。 此外，根据本发明的三相PWM转换器系统从直流电流检测电源电流的有效电流和无效电流，并且基于该值，控制PWM转换器，使得 提供电源功率因数为1的正弦波电源电流。

公开(公告)号：EP1152520A2

公开(公告)日：2001-11-07

申请号：EP01109397.8

申请日：2001-04-19

申请人： Hitachi, Ltd.

发明人： Sakai, Keijiro ,  Okuyama, Toshiaki ,  Nakatsu, Kinya ,  Ishida, Seiji ,  Fujii, Hiroshi ,  Kato, Junji ,  Hiraga, Masahiro

IPC分类号： H02M7/48

CPC分类号： H02M7/48 ,  H02M7/53875 ,  H02P27/08

摘要： An inverter device in the present invention comprises a three-phase inverter (2) for converting DC electric power into AC power for supplement to an AC electric motor (3) and a control device (4 - 11) operatively associated therewith, and said control device includes a phase current detection section (7, 8) for outputting a phase current waveform based on a DC input current and an operational processor section (4 - 6, 10, 11) for performing based on said phase current waveform operational processing for control of said inverter device. Thereby, the inverter device can be constructed to be very compact.