基于等增量成本的优化方法以提升IPOP型变换器效率
Equal Incremental Cost-Based Optimization Method to Enhance Efficiency for IPOP-Type Converters
AI总结：
本文提出基于等增量成本的动态负载分配算法，结合多项式拟合与模拟退火优化，提升IPOP型DAB变换器在宽功率范围的效率，实验验证800W下效率提升超0.74%。
摘要：
在宽功率范围内实现系统优化通常通过组合不同功率等级的模块来完成。本文针对多个模块并联运行期间提升系统效率的问题，提出了一种基于等增量成本的动态负载分配算法。首先，采用多项式拟合技术对单个模块的效率测试点进行拟合。随后，利用基于等增量成本的优化方法，制定多模块系统的效率优化与分配方案。应用模拟退火算法来确定在给定总功率流需求下每个模块的最优功率输出策略。最后，搭建了一个具有两个输入并联输出并联（IPOP）配置的双有源桥（DAB）实验样机，以验证所提出策略的有效性。实验结果表明，在800W工作条件下，与两个模块之间的均功率分配相比，本文方法实现了超过0.74%的效率提升。
英文摘要：
Systematic optimization over a wide power range is often achieved through the combination of modules of different power levels. This paper addresses the issue of enhancing the efficiency of a multiple module system connected in parallel during operation and proposes an algorithm based on equal incremental cost for dynamic load allocation. Initially, a polynomial fitting technique is employed to fit efficiency test points for individual modules. Subsequently, the equal incremental cost-based optimization is utilized to formulate an efficiency optimization and allocation scheme for the multi-module system. A simulated annealing algorithm is applied to determine the optimal power output strategy for each module at given total power flow requirement. Finally, a dual active bridge (DAB) experimental prototype with two input-parallel-output-parallel (IPOP) configurations is constructed to validate the effectiveness of the proposed strategy. Experimental results demonstrate that under the 800W operating condition, the approach in this paper achieves an efficiency improvement of over 0.74\% by comparison with equal power sharing between both modules.
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