원문정보
초록
영어
This paper proposes a novel tuning approach for robust proportional-integral-derivative (PID) controller based on H∞ loop shaping synthesis in combination with gap metric and Particle Swarm Optimization (PSO) algorithm. Different from the traditional research, the controller is designed through the search region constrained by H∞ loop shaping synthesis and gap metric theorem. PSO algorithm is used for tuning the robust PID controller parameters based on the underlying constrained optimization problems without resolving complex arithmetical calculations. The control technique is applied for the robust controller design so as to get a low order structured controller and achieve robust performance and the ability of restraining disturbance. The simulation shows that the proposed method can character the set of all values of the controller parameters that guarantees the robust stability with any supposed accuracy and achieves favorable control performance for uncertain systems.
목차
1. Introduction
2. Problem Setting and Derivation of Constraint
2.1. PID Controller Structure
2.2. Hinf Loop Shaping
3. Gap Measurement and Robust Stability Analysis
3.1. Gap Measurement and Geometry Meanings
3.2. Robust Stability Based on Gap Measurement
4. Control Designer Based on PSO Algorithm
4.1. Introduction to PSO [24]
4.2. Largest ν-gap Metric Based on PSO Algorithm
5. A Numerical Example
6. Conclusions
References