| 摘要 |
PROBLEM TO BE SOLVED: To provide a dynamo meter system capable of performing stable speed control and position control even when the inertia of a load becomes large.SOLUTION: A speed controller 6C of a dynamo meter system includes a speed control circuit section 61A which calculates a torque current command value T2 based upon an angular speed command value ωref and a dynamo meter angular speed ωM, a disturbance observer compensation section 63C which corrects the torque current command value by subtracting a disturbance observer Tobs from the torque current command value T2 calculated by the speed control circuit section 61A, and an axis torque detection compensation section 62A which corrects the torque current command value by adding an axis torque detection compensation quantity Tsh_K, obtained by multiplying an axis torque detection value Tsh by a filter transfer function Gand a suppression gain K1, to a torque current command value T1. The filter transfer function Gof the axis torque detection compensation section 62A is set having, as a passing band, only a resonance frequency of a machine system comprising load equipment and a dynamo meter and its vicinity. |
