Fractional Order Fuzzy PID control of an Active Suspension System for a High-Speed Pantograph

Pantograph is a device that collects electrical current from overhead line to power an electrical locomotive. Pantograph must transmit electrical energy to high-speed rail system without arcing and interrupting power. This paper presents a Fractional Order Fuzzy PID (FOFPID) technique for tuning the optimal control gains of PI^λ D^μ controller. The Fractional Order Fuzzy PID controller (FOFPID) can decrease rapidly the contact force variation between the pantograph and the catenary in order to minimize damage and wear of the contacting elements. The results are verified that system responses with proposed controller have better performance parameters in both transient state and steady state.