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    • 2. 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