Sliding mode controller applied to PWM DC-DC converters based on an averaged model

被引:0
作者
Jaen, Carles [1 ]
Pou, Josep [1 ]
Pindado, Rafael [1 ]
Sala, Vicenc [1 ]
Zaragoza, Jordi [1 ]
机构
[1] Tech Univ Catalonia, Dept Elect Engn, Terrassa 08222, Catalonia, Spain
来源
2007 COMPATIBILITY IN POWER ELECTRONICS | 2007年
关键词
modeling; pulse width modulation converters; control systems; variable structure systems; converter control;
D O I
暂无
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
A modeling methodology applied to PWM DC-DC converters is presented in this paper. Parasitic resistors have been considered in inductor and power supply. A generalised equivalent circuit based on averaged variables is obtained for the basic structures of DC-DC converters. This circuit and the associated model are valid for continuous conduction mode and discontinuous conduction mode. This contribution contains expressions to detect changes of the converter operation mode and to estimate the value of the diode duty cycle operating under discontinuous conduction mode. A sliding mode controller for the regulation of the output voltage has been designed in terms of averaged state variables and converter parameters. The procedure is applied to a 100W Buck converter prototype. Simulations and experimental results are presented.
引用
收藏
页码:432 / 436
页数:5
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