發(fā)布時(shí)間：2018-11-13 12:15

【摘要】：為抑制電流源型半橋變換器升壓過(guò)程中的干擾信號(hào),提出一種基于相似反對(duì)稱結(jié)構(gòu)設(shè)計(jì)的魯棒控制方案.通過(guò)分析開(kāi)關(guān)模式和工作過(guò)程,并考慮電源電壓波動(dòng)和負(fù)載擾動(dòng)的影響,采用狀態(tài)空間平均法建立帶有不確定項(xiàng)的數(shù)學(xué)模型.利用相似反對(duì)稱結(jié)構(gòu)的逆推方法設(shè)計(jì)閉環(huán)控制器,保證了直流母線電壓的穩(wěn)定,并通過(guò)李亞普諾夫理論分析系統(tǒng)的動(dòng)態(tài)性能,得到系統(tǒng)快速性的調(diào)節(jié)方法.仿真結(jié)果表明,該方案不僅對(duì)不確定性具有較好的魯棒性,且對(duì)外部擾動(dòng)具有較強(qiáng)的抑制作用.
[Abstract]:A robust control scheme based on the similar antisymmetric structure is proposed to suppress the interference signals during the boost of the current source half-bridge converter. By analyzing the switching mode and working process and considering the influence of voltage fluctuation and load disturbance, a mathematical model with uncertainty is established by using the state-space averaging method. The closed-loop controller is designed by using the inverse method of similar antisymmetric structure to ensure the stability of DC bus voltage. By analyzing the dynamic performance of the system by Lyapunov theory, the fast adjusting method of the system is obtained. Simulation results show that the proposed scheme is not only robust to uncertainties, but also has a strong suppression effect on external disturbances.
【作者單位】： 四川大學(xué)電氣信息學(xué)院;
【分類號(hào)】：TM46

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相關(guān)期刊論文 前3條

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本文編號(hào)：2329075