| Abstract |
An induction motor driving ·COntroller which can improve perfonnance of
ele~ators is. studi~d. The controller has three features. First, it has energy saving control by which the mductton motor stably generates the motor torque at the maximum efficiency,
regardless of the number of passengers boarding the car, even if both acceleration from standstill and deceleration from steady state are done for any elevator. Second, it can suppress
vertical vibrations of elevators while performing energy saving control. Third, it ensures good performance of elevators even when a source voltage is reduced due to an overload at the
source sides. 'I11e controller is judged suitable for the drive system of elevators on the basis of simulations and experiments. |
