基于HPR-SA算法的开关电源优化设计

Optimization Design of Switching Converters Based on HPR-SA Algorithm

最优设计技术已在开关电源的设计中有了一些成功的应用,大多以重量和损耗为优化的目标,但还存在很多需要解决的问题,其中之一就是没有一个效率和可靠度高的工程优化算法。文章就是在这种背景下,分析了BUCK变换器的工作状态,从体积和性能的角度,建立了BUCK电路的优化模型,将拉格朗日乘子法和模拟退化算法相结合,提出HPR-SA算法,并将其应用于BUCK变换器的优化设计之中,优化后体积有一定的减小,输出电压仿真波形,完全符合性能指标的要求,从而证明该算法的可行性和有效性。

Nowadays, optimization technique has got some success in application to the design of the switching mode power supply. But most of the optimization designs are directed toward weight and loss, at the same time, there are many problems to be fixed. By and large, there is no one effective and fast optimization algorithm. Under this circumstances, analyzing the working process of BUCK converter, from the angle of volume and performance combining HPR and simulated annealing, this paper proposes a new optimization algorithm HPR-SA, then apply it to the optimization design of BUCK converter. After the optimization, the volume minishes to some extent and the output voltage waveform completely live up to the performance request. So the results of the simulation and the optimization demonstrate its feasibility and effectiveness.