互聯(lián)系統(tǒng)中電流模式控制電源模塊的大信號建模方法

摘要﹕本文提出一種互聯(lián)系統(tǒng)中電流模式控制電源模塊的大信號建模方法。提出了電流模式控制電路功率級的能量傳輸模型，并給出了四種基本變換器模型的推導；在仿真方法上，強調必須保留外環(huán)的反饋回路，才能保留大信號下系統(tǒng)的瞬態(tài)特性。所建模型有望在通過仿真預測、驗證互聯(lián)系統(tǒng)的穩(wěn)定性方面獲得應用。

Abstract: This paper proposes an approach (model) to deal with current-mode-controlled power modules while investigating large-signal interactions among subsystems in a? istributed dc power system. By establishing a family of power stage models that embody nonlinearity to an algebraic operation block and keeping all components along in the external feedback control loops staying in simulation, simulation speed can be dramatically accelerated as well as large-signal dynamic properties can be reflected correctly. Mathematic derivation of the models is presented and simulation tests show the validity of the proposed approach.
關鍵詞﹕電源，仿真，分布式電源系統(tǒng)，相互作用2