基于非线性规划的开关电源最优设计技术

The Optimization Design Technology for Switching Mode Power Supply using Non-linear Programming

随着电力电子技术的不断发展,要求开关电源有更高的频率、更高的功率密度、更高的效率、更高的功率因数和更高的可靠性,同时还要求其电路相对简洁,并有较小的体积,这样才更具实用性。在进行单相BoostPFC变换器初步设计的基础上,运用非线性规划技术对BoostPFC变换器进行了优化设计。同时采用遗传算法对该非线性模型进行求解。结果表明,优化设计方案在满足各项性能指标的情况下,实现了设计目标的最优。

With the development of power electronics, switching mode power supply （SMPS） must have higher frequency, higher power density, higher efficiency, higher power factor （PF） and higher reliability. To be practicability, the circuit must be simple and small. On the base of the initial design of Boost PFC converter, it introduces the non-linear programming （NLP） technique. At the same time, genetic algorithm was used for solving this NLP model. And its optimization result indicates the objective function obtaining the best value, at the same time meeting the other performance guideline.