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    • 4. 发明专利
    • Control system of ac motor
    • 交流电机控制系统
    • JP2014117117A
    • 2014-06-26
    • JP2012271237
    • 2012-12-12
    • Toyota Motor Corpトヨタ自動車株式会社Denso Corp株式会社デンソー
    • MORII AKIYOSHINOMURA TETSUYANAKAMURA MAKOTOYAMAZAKI MIKIO
    • H02P21/00H02P6/08H02P27/04
    • H02P21/0085B04B13/003H01H3/26H02P6/15
    • PROBLEM TO BE SOLVED: To suppress a loss when a control system formed so as to variably control the DC link voltage of an inverter by a step-up converter controls an AC motor by rectangular wave voltage control.SOLUTION: A converter 12 controls a system voltage VH that is the DC link voltage of an inverter 14 in accordance with a voltage command value. The inverter 14 outputs a rectangular wave voltage having the system voltage VH as an amplitude to an AC motor M1 when the rectangular wave voltage control is applied. When the rectangular wave voltage control is applied, the voltage command value of the system voltage VH is corrected so as to bring a current phase on a d-q plane of the AC motor M1 close to a target current phase line. The target current phase line is set at an advance angle side compared with an optimum current phase line that is the aggregation of current phases by which output torque becomes the maximum with respect to the same amplitude of the motor current in the AC motor M1.
    • 要解决的问题:为了通过升压转换器可变地控制逆变器的直流母线电压而形成的控制系统通过矩形波电压控制来控制交流电动机来抑制损耗。解决方案:转换器12控制系统 电压VH是逆变器14的直流母线电压,根据电压指令值。 当施加矩形波电压控制时,逆变器14输出具有系统电压VH作为振幅的矩形波电压给AC电动机M1。 当施加矩形波电压控制时,校正系统电压VH的电压指令值,使得交流电动机M1的d-q平面上的电流相位接近目标电流相位线。 与作为交流电动机M1中的电动机电流的相同幅度的输出转矩成为最大的电流相位的聚集的最佳电流相位线相比,目标电流相位线被设定在提前角侧。
    • 5. 发明专利
    • Control device of alternating-current motor
    • JP5299439B2
    • 2013-09-25
    • JP2010548293
    • 2009-01-29
    • トヨタ自動車株式会社
    • 堅滋 山田
    • H02P6/08H02P27/06
    • H02P27/08H02P21/0021H02P21/0085H02P21/0089H02P21/05
    • An overmodulation PWM control unit (200) includes a voltage amplitude calculating unit (245) for calculating a voltage command amplitude VA of an original voltage command (Vd#, Vq#) based on current feedback control, a voltage amplitude correcting unit (270) for performing linear compensation on the voltage command amplitude so that a fundamental amplitude of a pulse width modulation voltage provided from an inverter (14) may match the original voltage command amplitude (VA), and a harmonic determining unit (300) for determining presence or absence of superimposition of a three-order harmonic component on a phase voltage command. The harmonic determining unit (300) performs switching between presence and absence of the three-order harmonic component based on transition of the original voltage command amplitude (VA) to avoid passing through a change point where discontinuity occurs in the voltage amplitude characteristics representing a relationship between a fundamental amplitude obtained in advance for each of the cases of presence and absence of the superimposition of the three-order harmonic component and the voltage command amplitude required for achieving the fundamental amplitude.
    • 6. 发明专利
    • Motor control device and motor control method
    • 电机控制装置和电机控制方法
    • JP2013090545A
    • 2013-05-13
    • JP2011231882
    • 2011-10-21
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • KATO YOSHIKI
    • H02P6/16H02P21/00H02P27/04H02P29/00
    • H02P21/0085H02P21/0089H02P21/16H02P21/18
    • PROBLEM TO BE SOLVED: To provide a motor control device and a motor control method, capable of accurately controlling a motor.SOLUTION: A motor control device for generating a voltage command value from a current command value to perform feed back control by using a detection current flowing in a motor, comprises: a speed PI control section 303 for performing speed control of the motor on the basis of a speed command value for rotating the motor at a fixed speed and flowing a d-axis current having a fixed current amount in the motor; a current measurement section 402 for measuring a current command value based on an output of the speed control section when the motor rotates at the fixed speed and the d-axis current having the fixed current amount is flowing in the motor; and an off-set calculating section 403 for calculating a correction value for a rotation position of the motor on the basis of the measured current command value.
    • 要解决的问题:提供能够精确地控制电动机的电动机控制装置和电动机控制方法。 解决方案:一种用于从电流指令值产生电压指令值以通过使用在电动机中流动的检测电流进行反馈控制的电动机控制装置,包括:速度PI控制部分303,用于执行电动机的速度控制 基于用于使电机以固定速度旋转并使电动机中具有固定电流量的d轴电流流动的速度指令值; 电流测量部分402,用于当电动机以固定速度旋转并且具有固定电流量的d轴电流在电动机中流动时,基于速度控制部分的输出来测量电流指令值; 以及根据测定的电流指令值计算电动机的旋转位置的修正值的偏差计算部403。 版权所有(C)2013,JPO&INPIT
    • 7. 发明专利
    • Inverter control system
    • 逆变器控制系统
    • JP2012147561A
    • 2012-08-02
    • JP2011003799
    • 2011-01-12
    • Meidensha Corp株式会社明電舎
    • YAMAGUCHI TAKASHIKAKEBAYASHI TORU
    • H02P6/06H02P6/16
    • H02P21/0085H02M7/53875H02P6/182H02P23/0086H02P27/08H02P2201/07H02P2205/01
    • PROBLEM TO BE SOLVED: To provide an inverter control system with small operation load, a compact size, low cost and small loss.SOLUTION: An LPF extracts a DC component of a current detection value of an inverter input current, a subtracting part 4 calculates a difference between a current command value and the DC component of the current detection value, and a current controller 5 generates two-phase PWM signals Sa and Sb complementary to each other on the basis of the current difference. An integration circuit 7 integrates inverter output terminal voltages Vu, Vv and Vw to convert them into flux information φu, φv and φw, and a logic converting part 8 logically converts the flux information φu, φv and φw into 120-degree conduction patterns S1' to S6'. A logic circuit part 9 logically synthesizes the PWM signals Sa and Sb and the 120-degree conduction patterns S1' to S6' so as to output gate signals S1 to S6.
    • 要解决的问题:提供具有小的操作负载,紧凑的尺寸,低成本和小的损耗的逆变器控制系统。 解决方案:LPF提取逆变器输入电流的电流检测值的直流分量,减法部分4计算电流指令值与电流检测值的直流分量之间的差,电流控制器5产生 基于电流差彼此互补的两相PWM信号Sa和Sb。 积分电路7将逆变器输出端子电压Vu,Vv,Vw进行积分,将其变换为通量信息φu,φv,φw,逻辑转换部8将通量信息φu,φv,φw逻辑转换为120度的导通图案S1' 到S6'。 逻辑电路部分9逻辑地合成PWM信号Sa和Sb以及120度的导通图形S1'至S6',以输出门信号S1至S6。 版权所有(C)2012,JPO&INPIT