Three Phase Induction Motor Dynamic Speed Regulation Using IP Controller

The speed of an induction motor is difficult to control, it happens because the torque and flux produced are not independent or related to each other so that they cannot maintain a constant speed when a load changes. Therefore, we need a control to increase the response of three-phase induction motors. This research applies IP controller and scalar control to regulate the motor speed with electric vehicle loads using SVPWM inverter (space vector pulse width modulation) to improve the inverter output signal so that it can adjust the speed of the induction motor when the load changes. System performance has been tested using Matlab. The simulation results show that the IP controller can improve the dynamic response system and reduce the overshoot value compared with the conventional PI controller. The speed change on the IP controller has succeeded in reaching the 1000 rpm set point with a rise time of 0.342 seconds at a steady state of 0.36 seconds and an overshoot of 2.830%. At a set point speed up to 800 Rpm, a stable condition is obtained with rise time of 0.12 seconds and an overshoot of 5.649%.