摘要
分析了滑模控制DC/DC变换器的滑模存在条件、到达条件及稳定性,通过选择适当的状态变量,建立系统状态方程模型。提出了一种实用性较强的双环控制方案,并以Buck电路为例,设计出滑模控制电路。实验结果表明,此控制方案是可行的,它可以有效地改善变换器的动态性能,提高其鲁棒性。
The sliding mode existing conditions, the reachable condition and the stability of the DC/DC converter are analyzed. A state equation model is built by selecting suitable state variables. A practical two-loop control scheme is proposed. A sliding mode control circuit is designed for buck converter. Experimental results show that the control scheme can effectively improve the dynamic performance and robustness of the converter.
出处
《微电子学》
CAS
CSCD
北大核心
2005年第3期260-262,267,共4页
Microelectronics
基金
国家自然科学基金资助项目(60372004)
