摘要
反激式DC-DC变换电路作为光伏逆变器的前级电路,具有转换效率高、转换开关电压应力小等特点。为进一步提高转换效率,研究一种DC-DC变换电路混杂系统建模和滑模控制策略。本文首先分析所提拓扑结构的工作原理,并根据该拓扑电路的工作方式,利用状态空间平均法建立该拓扑的系统数学模型,采用滑模变结构控制方法来控制系统状态之间的切换,最后通过Matlab/Simulink仿真和实验验证该变换器拓扑的实用性和滑模控制策略的有效性。
As a kind of PV inverter circuit,flyback DC-DC converter circuit has the characteristics like high-conversion efficiency,low switching voltage stress,and so on.In order to improve the conversion efficiency,hybrid system modeling and sliding mode control strategy of DC-DC converter circuit are studied.Working principle of topology is analyzed in this paper,and then,topological mathematical model is established by using state space averaging method.The sliding mode control method is adopted to control the switching between system states.The effectiveness of converter topology and control strategy are verified by experiment,and simulated via Matlab/Simulink.
作者
徐晓冰
戚枭宏
李冰
罗国军
王建平
王钦
Xu Xiaobing Qi Xiaohong Li Bing Luo Guojun Wang Jianping Wang Qin(School of Electrical and Automation Engineering, He f ei University of Technology, Hefei , 230009, China Jiangsu Tongling Electric Appliance Group Corp, Yang Zhong , 212200, China)
出处
《中国农机化学报》
2017年第2期67-72,共6页
Journal of Chinese Agricultural Mechanization
基金
国家自然科学基金资助项目(51307041)
