电子科技大学学报2017，Vol.46Issue(6)：812-818,7.DOI:10.3969/j.issn.1001-0548.2017.06.003
Buck变换器的数字电流滞环控制策略的改进
Improvement to Digital Current Following Control Strategy in Buck DC-DC Converter
摘要
Abstract
Based on the existing control strategy and experimental result of the digital current following controlling Buck DC-DC converter, the reasons why load chances the dynamic response time is long and the output voltage can not recover expected value are analyzed, and an improved control strategy is proposed. Based on the existing control strategy, the improved control strategy adds the detection of the load changes process. If the load changes occur, the new control strategy is switched automatically. According to the shock loading and unloading, the mathematical models of the changes are established respectively, the corresponding control strategies are designed, and the hardware test results are given. The experimental results show that the proposed control strategy is correct and feasible in steady state control and dynamic process control. On the basis of ensuring the output voltage accuracy in steady state, the dynamic performance of the converter is improved.关键词
BuckDC-DC变换器/电流滞环控制/动态响应/负载突变Key words
Buck DC - DC converter/current following control/dynamic response/load changes分类
信息技术与安全科学引用本文复制引用
程红丽,贾龙飞..Buck变换器的数字电流滞环控制策略的改进[J].电子科技大学学报,2017,46(6):812-818,7.基金项目
国家自然科学基金(51277149) （51277149）
