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16 条记录 (耗时 0.013 秒)

    Control apparatus for alternating-current source
    2.
    发明公开
    Control apparatus for alternating-current source 有权
    Regelvorrichtungfüreine Wechselstromquelle

    公开(公告)号：EP1257049A3

    公开(公告)日：2003-12-10

    申请号：EP02002878.3

    申请日：2002-02-08

    申请人： Hitachi, Ltd.

    发明人： Nakatsugawa, Junnosuke ,  Endo, Tsunehiro ,  Inaba, Hiromi ,  Iwaji, Yoshitaka ,  Kawabata, Yukio ,  Tomita, Hiroyuki ,  Kato, Junji

    IPC分类号： H02P7/62

    CPC分类号： H02P21/00 ,  H02P6/16 ,  H02P25/08

    摘要： In order to supply an AC motor control apparatus which identifies the type of motor automatically , the AC motor control apparatus has a motor type identification means by which the type of motor connected to the motor control apparatus is identified by issuing the appropriate voltage command for motor type identification and judging from the detected current whether the motor rotor is equipped with a magnet and has magnetic salience. The AC motor control apparatus has a control scheme selection means which selects the appropriate control scheme according to the above-identified type of motor and controls the driving of the motor.

    摘要翻译： 为了提供自动识别电动机类型的交流电动机控制装置，交流电动机控制装置具有电动机类型识别装置，通过发出适当的电动机电压指令来识别连接到电动机控制装置的电动机的类型 根据检测到的电流判断电机转子是否装有磁铁，具有磁性突出性。 交流电动机控制装置具有根据上述类型的电动机选择合适的控制方案的控制方案选择装置，并控制电动机的驱动。

    Vector control method and system for a synchronous motor
    3.
    发明公开
    Vector control method and system for a synchronous motor 审中-公开
    Vektorsteuerungsverfahren und-systemfüreinen Synchronmotor

    公开(公告)号：EP1263124A2

    公开(公告)日：2002-12-04

    申请号：EP02004210.7

    申请日：2002-02-25

    申请人： Hitachi, Ltd.

    发明人： Nakatsugawa, Junnosuke ,  Kawabata, Yukio ,  Endo, Tsunehiro ,  Kitamura, Masashi ,  Kaneda, Junya

    IPC分类号： H02P6/06

    CPC分类号： H02P6/06

    摘要： Providing control apparatus with a maximum torque/current ratio control means by which the relationship between the maximum torque and current amplitudes and the relationship between the maximum torque and current phases are converted to numeric expressions including one or more than one linear function with the torque taken as the parameter, then the current amplitude command and current phase command data that yields a maximum torque is computed, and computed data is sent as an output signal.

    摘要翻译： 提供具有最大扭矩/电流比控制装置的控制装置，通过该最大扭矩/电流比控制装置，最大扭矩和电流幅度之间的关系以及最大转矩和电流相位之间的关系被转换为包括一个或多于一个线性函数的数字表达式，其中所采用的转矩 作为参数，则计算产生最大转矩的当前振幅指令和电流相位指令数据，并将计算出的数据作为输出信号发送。

    Control apparatus of brushless motor and machine using brushless motor
    4.
    发明公开
    Control apparatus of brushless motor and machine using brushless motor 有权
    一种用于无刷电机和机械无刷电机控制装置

    公开(公告)号：EP0945974A3

    公开(公告)日：2001-05-23

    申请号：EP99103989.2

    申请日：1999-03-11

    申请人： Hitachi, Ltd.

    发明人： Kawabata, Yukio ,  Notohara, Yasuo ,  Tahara, Kazuo

    IPC分类号： H02P6/18

    CPC分类号： H02P6/18

    摘要： A phase signal generation circuit (9) is constituted by using a comparison circuit (10), a delay circuit (11), a gate signal preparation circuit (13), and a selection holding circuit (12). A phase signal (9a) generated in the phase signal generation circuit (9) is pattern recognized in a control circuit (6) and a position of a rotor is detected and further PWM control whole area, PAM control, and a change-over PWM/PAM is carried out. A rotor position detection accuracy can be heightened and the wide control range can be obtained.

    Control apparatus of brushless motor and machine using brushless motor
    5.
    发明公开
    Control apparatus of brushless motor and machine using brushless motor 有权
    RegelvorrichtungfüreinenbürstenlosenMotor und Maschine mitbürstenlosemMotor

    公开(公告)号：EP0945974A2

    公开(公告)日：1999-09-29

    申请号：EP99103989.2

    申请日：1999-03-11

    申请人： Hitachi, Ltd.

    发明人： Kawabata, Yukio ,  Notohara, Yasuo ,  Tahara, Kazuo

    IPC分类号： H02P6/18

    CPC分类号： H02P6/18

    摘要： A phase signal generation circuit (9) is constituted by using a comparison circuit (10), a delay circuit (11), a gate signal preparation circuit (13), and a selection holding circuit (12). A phase signal (9a) generated in the phase signal generation circuit (9) is pattern recognized in a control circuit (6) and a position of a rotor is detected and further PWM control whole area, PAM control, and a change-over PWM/PAM is carried out. A rotor position detection accuracy can be heightened and the wide control range can be obtained.

    摘要翻译： 通过使用比较电路（10），延迟电路（11），栅极信号准备电路（13）和选择保持电路（12）构成相位信号生成电路（9）。 在相位信号发生电路（9）中产生的相位信号（9a）在控制电路（6）中识别，并且检测转子的位置，并进一步控制PWM控制全区域，PAM控制和转换PWM / PAM进行。 可以提高转子位置检测精度，可以获得宽的控制范围。

    A motor driving circuit, a method for driving a motor, and a semiconductor integrated circuit device
    7.
    发明公开
    A motor driving circuit, a method for driving a motor, and a semiconductor integrated circuit device 审中-公开
    Motorsteuerung einesbürstenlosen电机

    公开(公告)号：EP1130761A2

    公开(公告)日：2001-09-05

    申请号：EP01104158.9

    申请日：2001-02-21

    申请人： Hitachi, Ltd. ,  HITACHI HARAMACHI ELECTRONICS CO., LTD.

    发明人： Ohura, Hiroshi ,  Tanaka, Tsuyoshi ,  Kawabata, Yukio

    IPC分类号： H02P6/16

    CPC分类号： H02P6/10 ,  H02P6/085 ,  H02P6/17

    摘要： A motor driving system according to the present invention comprises a power converter for supplying a brushless motor having a permanent magnetic rotor with pulse-width modulation controlled driving power; a magnetic-pole position detector for detecting a magnetic-pole position of the motor rotor; a speed detecting means for detecting a rotational speed of the motor according to an output signal of the magnetic-pole position detector; a speed control operation means for outputting a deviation of an output signal of the speed detecting means from a speed instruction; a means for generating a plurality of instruction signals in response to an output signal of the speed control operation means; a means for generating modulated waves by selecting one of the plurality of instruction signals according to the output signal of the speed control operation means; and a means for controlling the power converter by means of pulse width modulation according to the modulated waves.

    摘要翻译： 根据本发明的电动机驱动系统包括：电力转换器，用于提供具有脉冲宽度调制控制驱动功率的永磁转子的无刷电动机; 用于检测电动机转子的磁极位置的磁极位置检测器; 速度检测装置，用于根据磁极位置检测器的输出信号检测电动机的转速; 速度控制操作装置，用于从速度指令输出速度检测装置的输出信号的偏差; 响应于速度控制操作装置的输出信号产生多个指令信号的装置; 用于根据速度控制操作装置的输出信号选择多个指令信号之一来产生调制波的装置; 以及根据调制波通过脉冲宽度调制来控制功率转换器的装置。

    PWM/PAM control mode switching type motor control apparatus, and motor drive and air-conditioner using the same
    8.
    发明公开
    PWM/PAM control mode switching type motor control apparatus, and motor drive and air-conditioner using the same 失效
    切换电动机控制器与PWM / PAM控制和发动机变速器和空调所以

    公开(公告)号：EP0837549A3

    公开(公告)日：1999-07-07

    申请号：EP97118060.9

    申请日：1997-10-17

    申请人： HITACHI, LTD.

    发明人： Notohara, Yasuo ,  Kawabata, Yukio ,  Ishii, Makoto ,  Shinozaki, Hiroshi ,  Kato, Koji ,  Takakura, Yuhachi

    IPC分类号： H02M5/458

    CPC分类号： H02M5/458 ,  H02M2001/007 ,  H02P6/085 ,  H02P6/20

    摘要： A motor drive apparatus and an air-conditioner using the motor control apparatus of the invention has a feature to be able to gradually increase the dc voltage value (Ed) to a predetermined value when starting the switching operation of a chopper circuit by means of the dc voltage control means thereof, and when stopping the switching operation of the chopper circuit to be able to gradually decrease the dc voltage value (Ed) to a predetermined value. Further, the dc voltage command value (Ed*) is adjusted so as to be able to maintain a preferred value of dc voltage. Thereby, fluctuation in the number of revolutions of the motor (N) can be prevented even if the converter is started or stopped while the motor is operating, thereby allowing the motor drive apparatus and air-conditioner using the motor control apparatus of the invention to be operated at their maximum capacities.

    Power supply circuit for an air conditioner
    9.
    发明公开
    Power supply circuit for an air conditioner 失效
    空调的电源电路

    公开(公告)号：EP0820136A3

    公开(公告)日：1998-06-10

    申请号：EP97111925.0

    申请日：1997-07-14

    申请人： HITACHI, LTD.

    发明人： Katou, Kouji ,  Inoue, Toru ,  Ishii, Makoto ,  Takakura, Yuhachi ,  Notohara, Yasuo ,  Kawabata, Yukio ,  Shinozaki, Hiroshi ,  Nakamura, Hiroo ,  Takaku, Shoji ,  Morimoto, Motoo

    IPC分类号： H02J1/02

    CPC分类号： H02M1/4225 ,  F04C29/0085 ,  F25B2600/021 ,  H02M1/10 ,  H02P4/00 ,  Y02B30/741 ,  Y02B70/126

    摘要： For achieving an air conditioner being applicable to various a-c source voltages in common and operative with high power factor by suppressing generation of high harmonics, an a-c source voltage from an a-c electric power source 1 is rectified in full-wave by a rectifier 2, and a d-c source voltage Ed of an inverter 13 is obtained by being charged in a condenser 5. Here, there are a-c source voltages of 100 V and 200 V, and a divided voltage Ed1 of the d-c voltage of the condenser 5 is selected when the a-c source voltage is 100 V, a divided voltage Ed2 (here, Ed1 > Ed1) of the d-c voltage of the condenser 5 is selected when the a-c source voltage is 200 V, respectively by an exchange switch 18, and is used as a d-c voltage Ed' for controlling on and off of a switch element 6. Though the d-c source voltage Ed differs depending on the a-c source voltage of 100 V or 200 V, it is possible to set the d-c source voltage Ed at a voltage value for operating the inverter 13 with low loss and high efficiency, for each one of the a-c source voltages, by setting a ratio of the voltage division appropriately.

    摘要翻译： 为了通过抑制高次谐波的产生来实现适用于通用且具有高功率因数的各种交流电源电压的空调器，来自交流电源1的交流电源电压由整流器2全波整流，并且 逆变器13的直流电源电压Ed是通过在电容器5中充电而获得的。这里，存在100V和200V的交流电源电压，并且当电容器5的直流电压的分压Ed1被选择 交流电源电压为100V时，交流开关18分别在交流电源电压为200V时选择电容器5的直流电压的分压电压Ed2（这里Ed1> Ed1），并且用作dc 电压Ed'，用于控制开关元件6的接通和断开。尽管直流电源电压Ed根据100V或200V的交流电源电压而不同，但可以将直流电源电压Ed设置为用于操作的电压值 具有低损耗和h的逆变器13 通过适当地设定分压的比率，对于a-c电源电压中的每一个电源电压具有高效率。