Boost變換器滑模變結(jié)構(gòu)控制策略的研究
作者:王俊,程龍,中國(guó)礦業(yè)大學(xué) 上傳時(shí)間:2011/8/2 10:57:29
摘要:本文提出一種針對(duì)Boost變換器的滑模變結(jié)構(gòu)控制器的數(shù)字化實(shí)現(xiàn)。Boost變換器由于存在開關(guān)動(dòng)作是一種非線性系統(tǒng),滑模變結(jié)構(gòu)控制可以改變控制器結(jié)構(gòu),本質(zhì)上適用于非線性系統(tǒng)。仿真數(shù)據(jù)表明,滑模控制器具有更好的動(dòng)靜態(tài)特性。整個(gè)系統(tǒng)可以穩(wěn)定的工作在較寬的負(fù)載范圍內(nèi),并且對(duì)外部擾動(dòng)和系統(tǒng)內(nèi)部參數(shù)變化不敏感。
敘詞:Boost變換器 滑模變結(jié)構(gòu)控制 數(shù)字控制
Abstract:The article proposed an implementation of sliding mode controlled boost converter. The boost converter is a kind of non-linear system since the switching action was introduced to adjust the output voltage. Sliding mode control with the ability of changing the controllers structure, as known as the variable structure control (VSC) is designed especially for non-linear system. The results of simulation shows the sliding mode controlled boost converter have more convenient performances. The boost converter can work in a load wide range, as it is not sensitive to the disturbance of the load and the parasitic parameters.
Keyword:Boost converter, Sliding mode control, Digital control
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