摘要
讨论模糊控制在ＤＣ－ＤＣ变换器中的应用．模糊控制既不需要系统的精确模型，也不需要复杂的计算，只取决于人对系统性能的了解和基于感性的控制规则，适合于非线性系统ＤＣ－ＤＣ变换器．给出了ＤＣ－ＤＣ变换器中模糊控制器的结构，定义了输入、输出变量模糊集，通过对系统性能的分析，得出了模糊控制规则表，利用两个不同的模糊控制器，可进行大信号和小信号分析，给出了以Ｂｕｃｋ－Ｂｏｏｓｔ变换器为例的仿真分析，结果令人满意．
In this paper, the application of fuzzy control to DC-DC converters is discussed. The fuzzy control does not require a precise mathematical modeling of the system nor complex computations. It only relies on the human capability to understand the system s behavior and is based on qualitative control rules. It is applicable of the nonlinear system of DC-DC converters. This paper gives fuzzy controller structure in DC-DC converters and defines fuzzy sets for each input and output variable. Rule tables for fuzzy control are obtained from the analysis of the system behavior. Effective large-signal and small-signal operation can be carried with two different fuzzy controllers. It is satisfied with simulation and analysis results of Buck-Boost converter as an example.
出处
《厦门大学学报（自然科学版）》
CAS
CSCD
北大核心
2001年第z1期186-191,共6页
Journal of Xiamen University：Natural Science
