Buck斬波器控制補償電路的設計

摘要：文章在分析基于功率控制的Buck變換器的小信號模型的基礎上，探討了斬波器中反饋控制的傳遞函數和環路參數的設計，設計了雙極點、雙零點的PI補償器。實驗結果表明，補償后的系統不僅提高了系統響應速度，而且消除了穩態誤差，系統性能明顯提高。 敘詞：Buck變換器 感應加熱 PI補償器 雙極點—雙零點 Abstract：A two-pole and two-zero PI compensator is designed in this paper. It is based on the analysis of the small-signal model of Buck converter in power control ,and the discussion of the design of transfer function and loop parameters in converterThe experimental results show that the compensated system not only improves the system response speed, and eliminates the steady-state error, system performance improved markedly. Keyword：Buck converter, Induction heating, PI compensator, Two-pole and two-zero