| 摘要 |
PROBLEM TO BE SOLVED: To improve the arithmetic precision of an equivalent operation in a control amplifier equivalence testing device for performing the same action as that at the time of driving an induction motor by a VVVF inverter, and for outputting an equivalent electric signal to the control amplifier of a VVVF inverter. SOLUTION: At the time of performing an arithmetic operation by an electronic circuit in an equivalence testing device, an Euler method and a backward Euler method are alternately performed in each micro-sampling time interval ΔT. |
