Transient response improvement of PID controller using ANFIS-hybrid reference control

The standard PID controller is known to have performance limitations as it must trade off the transient response performance and the disturbance attenuation level. The paper presents a hybrid reference control (HRC) with adaptive neuro-fuzzy inference system (ANFIS) to improve transient response performances of a stabilized closed loop system using PID controller. The ANFIS is used to manipulate the set-point of the PID controller in a specific manner such that the transient response is improved. As a result, the transient response performances and the disturbance attenuation can be designed independently.