耦合电感对交错并联变换器输出特性的影响

Effects of coupling inductance on interlocks parallel converter's output characteristics

为了解决交错并联变换器动态和稳态特性的提高与耦合电感耦合度的关系,以双通道交错并联变换器为研究对象,从电路角度分析了耦合电感在正向耦合及反向耦合方式下,不同耦合度对交错并联变换器输出特性的影响,并进行了仿真验证,结果表明:理论分析与仿真结果完全一致。耦合电感的设计应选择反向耦合方式,在满足变换器动态响应速度的基础上,力求稳态纹波最小,为交错并联变换器提高动态响应、减低稳态电流文波提供技术支持。

Interlocks parallel converter Dynamic and the steady-state characteristic enhancement is related to the size of coupling inductance coupling. This article takeing the double-channeled interlocks parallel converter as the object of study, analyzes the effects of coupling inductance on interlocks parallel converter＇s output characteristics in the forward coupling and under the reverse coupled mode, and has carries out the simulation confirmation. Finally the article, indicated that the theoretical analysis is completely consistent with the simulation result. Coupling inductance＇s design should choose the reverse coupled mode, on the basis of satisfying the converter dynamic response speed in the foundation, and effort should be made to stabilize state ripple to be smallest.