船用电流型双有源桥式DC-DC变换器电流应力优化策略  

Current Stress Optimized strategy of Current-Fed Dual Active Bridge DC-DC Converter in Ship

作　　者：肖波涛 王归新[2] 阳国燕 曾健 菅乐峰 彭艺 XIAO Botao;WANG Guixin;YANG Guoyan;ZENG Jian;JIAN Lefeng;PENG Yi(Guilin Power Supply Bureau,Guangxi Power Grid Co.,Ltd.,Guilin 541002,Guangxi,China;School of Electrical Engineering and New Energy,China Three Gorges University,Yichang 443002,Hubei,China;Xianning Power Supply Company,State Grid Hubei Electric Power Co.,Ltd.,Xianning 437000,Hubei,China)

机构地区：[1]广西电网有限责任公司,桂林供电局,广西桂林541002 [2]三峡大学电气与新能源学院,湖北宜昌443002 [3]国网湖北省电力有限公司,咸宁供电公司,湖北咸宁437000

出　　处：《船舶工程》2021年第11期101-110,共10页Ship Engineering

基　　金：湖北省微电网工程技术研究中心开放基金资助项目(2015KDW03)。

摘　　要：针对船舶电网中的储能应用场合,分析电流型双有源桥式DC-DC变换器在采用脉冲宽度调制(PWM)加移相控制(PPS)和双PWM加双重移相控制(DPDPS)时的输出功率和漏感电流应力特性。为减小电流应力,提出一种将PPS控制与DPDPS控制相结合的最小电流应力优化策略。为改善变换器的动态性能,通过对变换器采用PPS控制时的模态进行分析,建立变换器的数学模型,进而得到系统的耦合关系式。通过反馈线性化控制对其进行解耦和线性化,在此基础上设计线性化控制器,并得到系统的控制规则。仿真结果验证了所提方法具有较好的应用效果。For the energy storage application in the ship power grid,the power transmission and leakage current stress characteristics of current-fed dual active bridge DC-DC converter base on PWM plus phase shift control(PPS)and dual PWM plus double phase shift control(DPDPS)are analyzed.In order to reduce the current stress,a minimum current stress optimization control method combining PPS control and DPDPS control is proposed.In order to improve the dynamic performance of the converter,the mathematical model of the converter is established by analyzing the operating modes modal under the PPS control,and then the coupling relationship of the system is obtained.Then the feedback linearization control is used to decouple and linearize it.On this basis,the linearization controller is designed and the control rules of the system are obtained.Finally,simulations verify that the method proposed has a good application effect.

关 键 词：电流型双有源桥式DC-DC变换器 最小电流应力 反馈线性化控制 

分 类 号：U665.14[交通运输工程—船舶及航道工程]