Master-slaves speed synchronization of triple 3-phase induction motors using pi and PID control methods

Abstract EN

This paper presents two methods used for three closed loop speed controller of Variable- Voltage Variable-Frequency (VVVF) triple 3-phase Induction Motors (IMs) master/slaves system.

A dynamic d-q model of a 3- phase IM in state space form and its computer simulation in MATLAB/SIMULINK software package are described.

The two different methods of speed control which are used to improve the performance of three IMs drive system are named as conventional PI controller and PID controller.

For PID speed controller, simulation results clearly show that the response of the system is superior compared to PI speed controller in terms of rise time, settling time, accuracy and steady state error.

The design, analysis, and speed responses of the system obtained under both controllers have been simulated, studied and compared using MATLAB/Simulink environment for different operating conditions such as sudden change in reference speed and load torque.

The simulation results showed good synchronization between the master and the slave IMs with suitable tracking error.