Optimization of pid controller gains of an aircraft pitch control system using particle swarm optimization algorithm

In this paper, a “Proportional-Integral-Derivative” (PID) controller used in a aircraft pitch control system is optimally tuned to control the output response so as to obtain a much more stable and optimized transient response is studied. The objective is to obtain a cohesive, sturdy and controlled system by tuning the PID controller using PSO algorithm. The obtained result is compared against the results obtained by re-tuning the same system with standard PID tuning algorithm and proves to give more suitable results. Results obtained establishes that, if we tune the PID controller of the given system using PSO algorithm we get reduced percentage of overshoot, reduced rise time, settling time, peak and hence system is more stable and less stagnant with PSO than the same system tuned with standard PID tuning algorithm.