直流转换器的计算机模拟

文章基于现代网络理论,提出了直流转换器电路的准确分析和设计的计算机模拟方法,讨论了电路方程的建立、性能分析、灵敏度计算和参数的优化设计;针对电路拓扑结构随电子开关周期性动作的特点,采用双图法在复频域中建立电路方程,使电路方程系数矩阵的形式不变;给出了输出对参数灵敏度的计算以及优化设计的方法,并以典型的直流转换器电路为例进行了实际分析和设计。

Computer simulation of DC converters

In the paper,a computer simulation approach is presented in order to make exact analysis and design of DC converters based on the modern network theory.A detailed discussion is made on circuit equation formulation,property analysis,sensitivity computation and optimization design of parameters.Considering the fact that circuit topological structure changes periodically with operated switches,network equations are formulated by the two-graph method in the frequency domain,but the parameter matrix form is the same.Then the methods of sensitivity computation and optimization design are derived.Finally,a typical DC converter circuit is analyzed and illustrated.