Design of Lead–Lag Controller Via Time-Domain Objective Function by Using Cuckoo Search

Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 293)

Abstract

A large proportion of industrial systems are represented by linear time-invariant transfer functions. The proportional–integral–derivative (PID) controller is one of the most widely used functions. However, the PID controller is susceptible to noise and windup effects. Therefore, the lead–lag controller is a more practical alternative. Traditionally, time-domain or frequency-domain methods have been used to design a lead–lag controller to design specifications. This paper focused on the design of the lead–lag compensator, by optimization of the time-domain objective function. The proposed objective function includes time-domain specifications, including the peak time, maximum overshoot, delay time, setting time and steady state error. In the paper, Cuckoo Search algorithm is chosen to finding the optimal solutions. Cuckoo Search is metaheuristic optimization method recently developed. That is a type of population based algorithm inspired by the behavior of some Cuckoo species in combination with the Lévy flight behavior. Given that the plant is modeled according to a linear time-invariant transfer function, the proposed method designs a lead–lag controller capable of approaching the specifications.

Keywords

Lead–lag controller Cuckoo search PID controller 

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  1. 1.Department of Electronic EngineeringI-Shou UniversityKaohsiungTaiwan, Republic of China

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