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Electrical power converter and control method

  • US 20060273748A1
  • Filed: 05/31/2006
  • Published: 12/07/2006
  • Est. Priority Date: 06/01/2005
  • Status: Active Grant
First Claim
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1. An electrical power converter comprising:

  • a first direct current line connected to a first direct current source;

    a second direct current line connected to a second direct current source;

    an alternating current line connected to an alternating current motor;

    a motor torque controller that generates current command values for the alternating current motor and generates compensating voltage commands values that correspond to charge target values from a source power command value that commands the charge amount from the first direct current source to the second direct current source, a motor torque command value and a motor rotation speed;

    a motor current controller that determines motor voltage commands values according to the current command values;

    a distributed voltage command value generator that determines command values of voltage that the first direct current source and the second direct current source from a power distributed target value that corresponds respectively to the first direct current source and the second direct current source and the motor voltage command values output to the alternating current motor;

    a voltage command value compensator that determines compensating distributed voltage command values by calculating the compensating voltage command values from the distributed voltage command values; and

    a pulse generator that generates an output voltage at the alternating current output according to the compensating distributed command values.

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