單相Boost型 AC/AC交流變換器的分析與實現

摘要：詳細分析了單相Boost型AC/AC交流變換器的工作原理及其控制策略。通過對輸入電壓的極性判斷，并結合輸出電壓誤差放大信號與三角載波的比較結果，可確定各開關管的工作狀態。對單相Boost型AC/AC交流變換器進行了仿真研究，并研制了一臺原理樣機，仿真和試驗結果驗證了理論分析的正確性及控制策略的可行性。 敘詞：交流變換器 Boost型 控制策略 極性判斷 Abstract：The operation principle and control strategy of single-phase Boost type AC/AC converter were analyzed in detail. By recognizing the polarity of intput voltage and comparing the error amplification signal of output voltage with the triangular carrier, the operation state of switches are determined. In the paper, single-phase Boost type AC/AC converter was simulated and a prototype was designed. The simulation and experimental results verified the correction of the theory and the feasibility of the control strategy. Keyword：AC/AC Converter Boost type Control strategy Polarity recognition