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    • 4. 发明申请
    • Method of Decelerating Alternating Current Motor and Inverter Apparatus
    • 减速交流电动机和逆变器装置的方法
    • US20070216340A1
    • 2007-09-20
    • US11547162
    • 2005-03-28
    • Hideaki IuraKazuhito HiramatsuMitsujiro Sawamura
    • Hideaki IuraKazuhito HiramatsuMitsujiro Sawamura
    • H02P27/04
    • H02P3/18H02P27/06
    • To be able to reduce a speed of an alternating current motor by an inverter apparatus by a time period as short as possible and to control an alternating current motor which is easy to be saturated magnetically by a previously set current or lower such that the inverter apparatus is not stopped by an overcurrent or the alternating current motor is not burned. It is an object of the invention to provide a method and an apparatus capable of reducing a speed of an alternating current motor and capable of shortening a time period of reducing the speed without bringing about a failure by reducing the speed in an overexcited state by making a time constant of a first degree delay filter larger than a time constant in a normal control state, monitoring a current flowing in the alternating current motor and adjusting the time constant in accordance with a current flowing in the alternating current motor in reducing the speed in driving the alternating current motor by a voltage type inverter including a voltage correcting portion for correcting a given voltage instruction by using a value constituted by passing a direct current bus voltage detected value through the first degree delay filter.
    • 为了能够通过逆变器装置将交流电动机的速度降低到尽可能短的时间段,并且通过预先设定的电流或更低的电流来控制容易被磁饱和的交流电动机,使得逆变器装置 不会被过电流阻挡或交流电机未燃烧。 本发明的目的是提供一种方法和装置,其能够降低交流电动机的速度并且能够缩短降低速度的时间,而不会通过在过度激励状态下降低速度而导致故障 大于在正常控制状态下的时间常数的第一度延迟滤波器的时间常数,监测在交流电动机中流动的电流,并根据在交流电动机中流动的电流来调节时间常数以降低交流电动机的速度 由包括电压校正部分的电压型逆变器驱动交流电动机,该电压校正部分通过使用通过第一程度延迟滤波器传递直流总线电压检测值而构成的值来校正给定电压指令。
    • 7. 发明申请
    • CONTROL DEVICE FOR INDUCTION MOTOR
    • 电感电机控制装置
    • US20100085006A1
    • 2010-04-08
    • US12490220
    • 2009-06-23
    • Sadayuki SATOHideaki IuraYoichi YamamotoKozo Ide
    • Sadayuki SATOHideaki IuraYoichi YamamotoKozo Ide
    • H02P23/08
    • H02P21/09
    • A control device includes a slip calculator that calculates a first slip frequency of an induction motor, a current detector that detects motor current that passes through the induction motor, an adder that calculates a primary frequency by adding a speed command and a second slip frequency that are given, a command voltage generation unit that generates first command voltage from the primary frequency, a voltage error observer unit that estimates a command voltage error from the first command voltage and the motor current, a slip correction unit that calculates a slip correction amount from the command voltage error, an adder that calculates the second slip frequency by adding the first slip frequency and the slip correction amount, and a voltage error correction unit that corrects the first command voltage using the command voltage error and outputs second command voltage.
    • 控制装置包括:计算感应电动机的第一转差频率的滑差计算器;检测通过感应电动机的电动机电流的电流检测器;加法器,其通过加上速度指令和第二转差频率来计算主频率, 给出从主频率产生第一命令电压的指令电压产生单元,从第一指令电压和电动机电流估计指令电压误差的电压误差观测单元,计算滑差校正量的滑差校正单元, 命令电压误差,通过加上第一转差频率和滑差校正量来计算第二转差频率的加法器,以及使用指令电压误差校正第一指令电压并输出第二指令电压的电压误差校正单元。
    • 8. 发明授权
    • Control device for induction motor
    • 感应电动机控制装置
    • US08106621B2
    • 2012-01-31
    • US12490220
    • 2009-06-23
    • Sadayuki SatoHideaki IuraYoichi YamamotoKozo Ide
    • Sadayuki SatoHideaki IuraYoichi YamamotoKozo Ide
    • H02P23/00
    • H02P21/09
    • A control device includes a slip calculator that calculates a first slip frequency of an induction motor, a current detector that detects motor current that passes through the induction motor, an adder that calculates a primary frequency by adding a speed command and a second slip frequency that are given, a command voltage generation unit that generates first command voltage from the primary frequency, a voltage error observer unit that estimates a command voltage error from the first command voltage and the motor current, a slip correction unit that calculates a slip correction amount from the command voltage error, an adder that calculates the second slip frequency by adding the first slip frequency and the slip correction amount, and a voltage error correction unit that corrects the first command voltage using the command voltage error and outputs second command voltage.
    • 控制装置包括:计算感应电动机的第一转差频率的滑差计算器;检测通过感应电动机的电动机电流的电流检测器;加法器,其通过加上速度指令和第二转差频率来计算主频率, 给出从主频率产生第一命令电压的指令电压产生单元,从第一指令电压和电动机电流估计指令电压误差的电压误差观测单元,计算滑差校正量的滑差校正单元, 命令电压误差,通过加上第一转差频率和滑差校正量来计算第二转差频率的加法器,以及使用指令电压误差校正第一指令电压并输出第二指令电压的电压误差校正单元。
    • 9. 发明申请
    • Method and device for sensorless vector control for ac motor
    • 交流电机无传感器矢量控制的方法和装置
    • US20070018606A1
    • 2007-01-25
    • US10548671
    • 2004-03-08
    • Hideaki IuraYoichi YamamotoShigekazu Nakamura
    • Hideaki IuraYoichi YamamotoShigekazu Nakamura
    • H02P27/04
    • H02P21/141H02P21/18H02P21/26H02P2207/01
    • To provided a control method and a controller for an a.c. motor without using a speed sensor in which the speed estimated value or the magnetic flux estimated value of an all-dimensional magnetic flux speed observer can be made to correspond to that of an actual a.c. motor. A controller for an a.c. motor includes a vector control and calculating circuit (7) for controlling and calculating a vector from an exciting current command calculated in an exciting current command calculating circuit (5), a torque current command calculated in a torque current command calculating circuit (6), a coordinate transformed current detected value obtained in a coordinate transformation circuit (4), a speed estimated value and a magnetic flux phase estimated value and outputting an output voltage command, a switching pattern generating circuit (8) for generating a signal for PWM driving a power converter (1) from the output voltage command and an all-dimensional magnetic flux speed observer (9) for estimating the speed estimated value and the magnetic flux phase estimated value from the output voltage command and the coordinate transformed current detected value. In the controller for the a.c. motor, a coefficient correcting circuit 10 is provided for correcting the coefficient of a determinant used in the all-dimensional magnetic flux speed observer (9) in accordance with a magnetic flux command.
    • 提供一种控制方法和控制器。 电动机不使用速度传感器,其中可以使全维磁通速度观测器的速度估计值或磁通估计值与实际交流传感器的速度传感器相对应。 发动机。 a.c.的控制器 电动机包括用于根据在励磁电流指令计算电路(5)中计算出的励磁电流指令来控制和计算矢量的矢量控制和计算电路(7),在转矩电流指令计算电路(6)中计算的转矩电流指令, 在坐标变换电路(4)中获得的坐标变换的电流检测值,速度估计值和磁通量相位估计值,并输出输出电压指令;用于产生PWM驱动信号的开关模式产生电路(8) 功率转换器(1)和用于根据输出电压指令和坐标变换电流检测值估计速度估计值和磁通量相位估计值的全维磁通速度观测器(9)。 在控制器中的a.c. 电动机,提供系数校正电路10,用于根据磁通量指令校正全维磁通速度观测器(9)中使用的行列式的系数。