基于Isight的开关电源近似建模研究

Research on Approximate Modeling of Switching Mode Power Supply Based on Isight

基于仿真的设计方法可有效缩短开关电源的研发周期和降低成本,但传统仿真手段耗时较长,为提高效率,通常采用近似建模技术进行仿真分析。利用Isight集成Saber与Ansys的方式实现开关电源的热电耦合仿真,然后应用克里格和径向基建模方法构建了不同样本点下开关电源的近似模型,对比确定了开关电源的最佳近似建模方法。最后,通过开关电源质量特性分析的应用实例验证了所提方法的有效性。

Design methods based on simulation can greatly reduce the period and coststraditional simulation methods need too much time. Approximate modeling techniques commonly are used inengineering to improve the efficiency of simulation. First of all , Isight was chosen as a softwthe thermo electrical simulation of switching mode power supply combining Ansys and Saber. Kriging and radial basis function modeling methods to establish its approximation models using different samplepoints,and comparing to determine the optimal method. Finally, the validity of this method can be inthe example of the quality analysis of this switching mode power supply.