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    INDUCTION MOTOR CONTROLLER
    1.
    发明公开
    INDUCTION MOTOR CONTROLLER 失效
    REGLERFÜRINDUKTIONSMOTOR

    公开(公告)号：EP0899864A4

    公开(公告)日：2002-10-23

    申请号：EP97906869

    申请日：1997-03-11

    申请人： MITSUBISHI ELECTRIC CORP

    发明人： KAITANI TOSHIYUKI ,  NAGANO TETUAKI ,  IMANAKA AKIRA ,  SHIRAISHI YASUHIRO

    IPC分类号： H02P21/00 ,  H02P21/14 ,  H02P23/08 ,  H02P27/08 ,  H02P7/63 ,  G01R31/34

    CPC分类号： H02P27/08 ,  H02P21/16 ,  H02P23/08

    摘要： An induction motor controller controls the drive of a polyphase induction motor (102) by means of a polyphase inverter (105) by measuring the electrical constants of the motor (102) by supplying test power and using the results of the measurement as drive control parameters. The controller has a first arithmetic means (106) which computes the resistances R2 of the secondary wiring and leakage inductances L corresponding to various conditions of a test using a test power source of three different frequencies (f) and a second arithmetic means (107) which finds a rational function containing a quadratic expression with respect to the frequency (f) by substituting the values of the resistances R2 and inductances L corresponding to the test conditions into the rational function having the resistances R2 as denominators and the inductances L as numerators and finds the resistances R2 and inductances L by substituting a required secondary slip frequency into the rational function.

    摘要翻译： 本发明是一种感应电机控制器，用于通过向多相感应电机（102）提供测试电力来测量多相感应电动机（102）的电常数，并通过使用用于控制驱动结果的参数来控制多相异步电动机的驱动 测量。 该控制器具有用于计算次级绕组电阻R2的第一计算装置（106）以及与具有三个不同频率f的测试功率的每个测试条件对应的漏电感L; 第二计算装置（107），用于通过用次级绕组电阻R2代替次级绕组电阻R2以及与包括次级绕组电阻R2的频率f的二次方程的有理函数中的每个测试条件相对应的漏电感L来获得有理函数 作为分母，漏电感L作为分子，通过在该获得的有理函数中代替期望的次滑差频率来计算次级绕组电阻R2以及漏电感L。

    CONTROLLER FOR POWER CONVERTER
    2.
    发明公开
    CONTROLLER FOR POWER CONVERTER 有权
    控制用于功率转换器

    公开(公告)号：EP1659680A4

    公开(公告)日：2008-12-17

    申请号：EP03818300

    申请日：2003-08-25

    申请人： MITSUBISHI ELECTRIC CORP

    发明人： KIMATA MASAHIRO ,  KAITANI TOSHIYUKI ,  IMANAKA AKIRA

    IPC分类号： H02M7/48 ,  H02M7/527 ,  H02M7/5387

    CPC分类号： H02M7/53873 ,  H02M7/53875 ,  H02M2007/53876 ,  H02P21/00

    摘要： A controller for controlling a power converter comprises a voltage vector control unit (11) for determining voltage vectors outputted from the power converter within one control cycle of PWM control and the times during which the voltage vectors are outputted according to voltage command variables Vu, Vv, Vw sent to the power converter, a voltage vector adjusting unit (12) for adjusting the output times of the voltage vectors received from the voltage vector control unit (11), and firing pulse generating unit (13) for generating signals for turning on/off semiconductor switching elements constituting the power converter according to the output times of the voltage vectors adjusted by the voltage vector adjusting means. The voltage vector adjusting unit (12) adjusts the zero voltage vector output time so as to ensure that the zero voltage vector output time may be a predetermined value or more without changing the relative proportions of the output times of the voltage vectors other than the zero voltage vector. Thus, high voltages above twice the DC bus bar voltage are suppressed. The three phases are controlled together.