Controlling of Electrical Elevators which Use the Linear Switched Reluctance Motors

The Control strategy for linear switched reluctance motor elevator is an important issue, which effects on the performance of the elevator . This strategy consists of four control loops , Current , Force , Velocity and position feedback control loops . For the force control loop , anew force distribution function ( FDF) is proposed . The trapezoidal velocity profile is introduced to control the vertical movement position smoothly during the elevator's accelerate, decelerate and halt operations. Conventional proportional plus integral (pI) controller is used for the current and velocity control loops and their designs are described . The proposed control strategy is dynamically simulated by Matlab .