电气传动2017，Vol.47Issue(7)：32-36,5.DOI:10.19457/j.1001-2095.20170707
交错并联Buck-Boost变换器模型预测控制方法
Model Predictive Control Method for Interleaved Parallel Buck-Boost Converter
摘要
Abstract
The traditional phase-shift method is used widely for interleaved parallel Buck-Boost bi-directional DC-DC converter. This method has the faults of difficult in increasing transformation efficiency and balancing inductors current. So a new model predictive control method of balancing two inductors current was proposed. Model predictive control was introduced in this method,predicting the corresponding value of objective function with all the possible switch states for the next time of the converter. And then cost function according to the requirements for control performance was established. At last,the switch state of the next moment was selected by minimizing the value of objective function to optimize all control objectives. Simulation analysis and experimental verifications for this proposed method were carried out. The simulation results show that the proposed method can make the voltage of DC bus track the given value accurately,two inductors current are balanced and the current ripple is very small. The overshoot of DC bus voltage in dynamic process is about 1.5%and the dynamic response time of converter is about 0.008 s. The experimental results show that the DC bus voltage and inductance current have good static performances, two inductors currents are balanced and the current ripple is very small. The overshoot of DC bus voltage in dynamic process is about 5% and the dynamic response time of converter is about 0.01 s,which prove the feasibility of the proposed control method.关键词
交错并联/双向DC-DC变换器/模型预测控制/开关状态/代价函数/电流纹波Key words
interleaved parallel/bi-directional DC-DC converter/model predictive control/switch states/cost function/current ripple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..交错并联Buck-Boost变换器模型预测控制方法[J].电气传动,2017,47(7):32-36,5.基金项目
国家自然科学基金(51477003) （51477003）
北京市自然科学基金项目(4152013) （4152013）
北京市科技新星计划(Z161100004916049) （Z161100004916049）
北方工业大学"长城学者后备人才培养计划"项目(XN070007) （XN070007）
