电工技术学报2017，Vol.32Issue(19)：153-159,7.DOI:10.19595/j.cnki.1000-6753.tces.L70084
级联式双向DC-DC变换器的优化控制方法
Optimized Control Method of Cascaded Bi-Directional DC-DC Converters
摘要
Abstract
Conventional dual-loop proportional-integral (PI) control method for cascaded bi-directional dc-dc converters has some disadvantages,such as inconvenient and difficult adjustments of PI parameters.As well,due to the inherent limit of PI regulators,the dynamic performance of the cascaded hi-directional dc-dc converters can not be optimized.To fulfill the practical control demand of cascaded bi-directional dc-dc converters,an optimized trade-off control method has been proposed in this paper,which is realized by combining the conventional dual-loop PI control and model predictive control.The conventional dual-loop PI control is employed in the first stage bi-directional dc-dc converter,and an optimized model predictive control algorithm has been developed for the second stage bi-directional dc-dc converter.The proposed optimized control method has been compared with conventional dual-loop control method and classic model predictive control method through simulations and experiments.These results show that,the dynamic performance of cascaded bi-directional dc-dc converter by using the proposed optimized control method is superior to that by using conventional dual-loop control;Furthermore,compared with classic model predictive control,the computation of the proposed optimized control method is reduced by 45.22％.关键词
级联/双向DC-DC变换器/模型预测控制/直流母线/动静态性能Key words
Cascaded/bi-directional DC-DC converter/model predictive control/DC bus/dynamic/static performance分类
能源科技引用本文复制引用
梅杨,陈丽莎,黄伟超,李晓晴,孙凯..级联式双向DC-DC变换器的优化控制方法[J].电工技术学报,2017,32(19):153-159,7.基金项目
国家自然科学基金(51477003)、北京市自然科学基金(4152013)、北京市科技新星计划(Z161100004916049)和北方工业大学“长城学者后备人才培养计划”(XN070007)资助项目. （51477003）
