【摘要】：雙向AC-DC變換器作為交直流混合微電網(wǎng)的重要組成部分,對系統(tǒng)的穩(wěn)定運行和功率的協(xié)調(diào)分配有著重要作用。本文基于切換系統(tǒng)理論,提出一種雙向AC-DC切換控制方法。該方法首先建立雙向AC-DC切換動態(tài)模型,選取系統(tǒng)的儲能函數(shù)作為共同Lyapunov函數(shù)�；诖�,設(shè)計了系統(tǒng)最優(yōu)切換律并分析了該切換律條件下系統(tǒng)在切換平衡點處的穩(wěn)定性。為了便于控制器數(shù)字化實現(xiàn),建立了切換系統(tǒng)單步預測模型并對切換策略離散化。仿真和實驗結(jié)果驗證了本文所采用的建模方法和控制策略的有效性。
[Abstract]:As an important part of AC / DC hybrid microgrid, bi-directional AC-DC converter plays an important role in the stable operation of the system and the coordinated distribution of power. Based on the theory of switched systems, a two-way AC-DC switching control method is proposed in this paper. Firstly, the dynamic model of bidirectional AC-DC switching is established, and the energy storage function of the system is selected as the common Lyapunov function. Based on this, the optimal switching law is designed and the stability of the system at the switching equilibrium is analyzed. In order to realize the controller digitalization, the single step prediction model of switching system is established and the switching strategy is discretized. Simulation and experimental results show the effectiveness of the proposed modeling method and control strategy.
【作者單位】： 山東大學控制科學與工程學院;
【基金】：國家自然科學基金重大國際(地區(qū))合作研究項目(61320106011) 國家自然科學基金(51107069;51377101)資助項目
【分類號】：TM46

【參考文獻】

相關(guān)期刊論文 前10條

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本文編號：2159886