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针对双有源桥变换器在充电领域电路损耗大、传输效率低的问题，提出一种结合序列二次规划算法与双重移相控制实现回流功率优化的控制策略。首先，建立双有源桥变换器在双重移相控制时以回流功率最小值为目标函数的二次规划问题数学模型；然后，提出一种采用序列二次规划算法求解上述多约束、非线性的数学模型，在算法中输入目标、约束函数的雅可比矩阵和变换器的相关参数，通过迭代求解出满足双有源桥电路在双重移相控制下最优工况的目标参数；最后，通过仿真验证所提控制策略的有效性。
Abstract：Aimed at the problems of high circuit loss and low transmission efficiency of dual active bridge(DAB)converters in the field of charging,a control strategy combining a sequential quadratic programming(SQP)algorithm and dual phase shift(DPS)control is proposed to optimize the reflux power of DAB converters. Firstly,a quadratic programming mathematical model for the DAB converter is established with the minimum reflux power as its objective function under the DPS control. Secondly,the SQP algorithm is proposed to solve the established multi-constraint and nonlinear mathematical model. The Jacobian matrix of the objective and constraint functions and the relevant parameters of the converter are taken as input into the algorithm,and the objective parameters that meet the optimal operating conditions of the DAB circuit under DPS control are iteratively solved. Finally,the effectiveness of the proposed control strategy is verified through simulations.
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基本信息:
DOI：10.19635/j.cnki.csu-epsa.001375
中图分类号:U469.72;TM46;TP273
引用信息:
[1]谭兴国,赵鑫,张飞祥.基于序列二次规划算法的双有源桥变换器优化控制策略[J].电力系统及其自动化学报,2024,36(10):40-48.DOI:10.19635/j.cnki.csu-epsa.001375.
基金信息:
国家自然科学基金资助项目（52267018）