A Study of Fixed-structure Variable-parameter Digital Controller Based on Fuzzy Control for DC/DC Converters

摘要：

The rapid development of digital control technology provides a new approach to applications of modern control theory and algorithm in power supplies. Firstly, the paper presents a digital DC/DC converter regulated by a fixed-structure variable- parameter PID (proportional - Integral - differential) controller and analyzes the limitations if a large signal disturbs the system; secondly, the feasibility of a compound controller including fuzzy and PI is demonstrated based on the model-independent of fuzzy control; last, fuzzy control is applied to determine the switching condition of variable-parameter PID controller. Simulation and experiment indicate that the vibration and bounce-back at the switching instants can be solved by the introduction of fuzzy control and the robustness of DC/DC converter is improved.

作者: Yao Yuying Zhang Donglai Xu Dianguo

作者单位: Harbin Institute of Technology Shenzhen Graduate School Harbin Institute of Technology

会议类型: 国际会议

会议名称: International Conference on Intelligent Computation Technology and Automation(2008 智能计算技术与自动化国际会议 ICICTA 2008)

会议地点: 长沙

会议语种:英文

页码: 840-844

在线出版日期: 2008-10-20（万方平台首次上网日期，不代表论文的发表时间）