用于3kVA電源的AC/DC變換器

摘要：單周期控制是一種用于功率變換器的新型非線性控制策略，當輸入電壓發生擾動或負載快速變化時，僅在一個周期內就可實現控制目標。本文簡要分析了單周期控制的控制原理，并在Boost變換器中采用了這種新穎的控制方法用于功率因數校正。基于IR1150研制了一臺3kVA的功率因數校正實驗樣機，給出了設計實例和實驗結果。實驗結果表明，該變換器的控制方法簡單、可靠和通用。 敘詞：變換器；功率因數校正；單周期控制 Abstract： One cycle control is a novel nonlinear control method for power converters. A one cycle controlled switch has the ability to reject the input voltage perturbation or the load step and to realize control objective only one switching cycle. After the analyses of one cycle control mechanism in this paper, this method is used in Boost PFC. A 3kVA PFC Converter is designed based on IR1150, the design process and experiment results are given. Experimental results prove that the control method of this converter is simple, reliable and general. Keyword：converter;PFC; one cycle control