Speed Control of Induction Motor Under Changing Load Torque Using PWM-PID Controller

@article{1722561,
      author = {Ejiofor, M. Okafor, Isidore U. Uju, Ugochukwu P. Okoye, Matthew U. Efoke},
      title = {Speed Control of Induction Motor Under Changing Load Torque Using PWM-PID Controller},
      journal = {Iconic Research And Engineering Journals},
      year = {2026},
      volume = {10},
      number = {2},
      pages = {3248-3256},
      issn = {2456-8880},
      url = {https://www.irejournals.com/formatedpaper/1722561.pdf},
      abstract = {Three-phase induction motor is widely applied in many applications requiring speed control precision such as milling machines and robotic systems and therefore, maintaining constant speed at a predefined value is essential. Several methods of speed control having been applied to three-phase induction in literature. This paper designs Pulse Width Modulation-discrete time Proportional Integral and Derivative (PWM-PID) controller to maintain a predetermined speed for three-phase induction motor in under constant and changing load condition. The mathematical model of the three-phase induction is presented and simulated in MATLAB/Simulink environment. Simulation results revealed that the motor exhibited excellent starting characteristics at no load, with minimal overshoot of 0.9036%and a relatively fast settling time of 0.2295 s. Under constant load of 50 N-m and changing load of 20 N-m and 50 N-m, the motor speed was characterised by settling time, peak time, and overshoot of (5.1107 s and 6.5983 s), (0.3 sand 0.3445 s), and (0.9394% and 1.003%), respectively. When compared with PI, the developed PID offered better performance in all transient response characteristics considered including improved stability.},
      keywords = {speed control, pulse width modulation, pid, induction motor},
      month = {August},
  }