Multi-objective Optimization for PID Controller of Boost Converter

• Main Authors: Huei-Kai Lin, 林揮凱
• Other Authors: Jyh-Horng Chou
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/99670635467933690128

碩士 === 國立高雄第一科技大學 === 系統資訊與控制研究所 === 101 === In this paper, we propose the Multi-objective algorithm NSGA-II which employed in the optimal design of boost converter with a PID controller. First, utilizeing multi-objective algorithm without complicated mathematical model computing to get PID controller gain values KP, KI, KD of in the environment of MATLAB-SIMULINK simulation. Then ATmega128 single-chip to design PID controller by AVR to program and implemented in the boost converter. In the study, There are two important design indicators for the transient response settling time and maximum overshoot have to satisfy to achieve optimal results simultaneously. However, because of the multi-objective optimization problem usually conflicting objectives, so that result in difficult to find suitable solution. Therefore, apply NSGA-II to obtain Pareto Fronts solution to find out and compare two better indicators of PID controller parameters. Finally, verify the proposed method by boost converter implementation.