| 摘要 |
PURPOSE:To enable good control, by increasing an armature current to compensate the non-linearity between the torque of a motor and a torque command near the saturation of its field flux. CONSTITUTION:A torque command generator 10 receives a speed commmand P and a real speed Sp to produce a torque command Tc. The first function generator 200, which receives the torque command Tc to produce a field current command, causes a field current command current to flow through a winding 218. The second function generator 30, which produces a command for increasing an armature current, causes an armature current increasing command current to flow through a winding 323. The third function generator 400 supplies a fixed armature current command winding 401 with the field current command independent of the magnitude of the torque command Tc. This results in simply compensating the non- linearity of the torque of the motor and in enabling good control even if non-load linearity is low. |
