| 摘要 |
PURPOSE:To accurately control a PWM inverter by processing the controls of a magnetic flux and a torque in parallel by 3 microprocessors to reduce a waiting time for a calculating time. CONSTITUTION:A first microprocessor 41a controls to calculate a primary magnetic flux. A second microprocessor 42a calculates a torque. A third microprocessor 45a has a function for deciding an inverter output voltage vector, and controls the progress of a whole system as a master processor. When the value of a control flag from the calculated result of the processors 41a, 42a is varied, an interrupt signal is generated to operate the waiting processor 45a to decide an inverter output voltage vector, and reflects the calculated result for the inverter output without waiting other calculated result. |
