基于可变电感器的不对称占空比DAB调制策略分析  

Analysis of asymmetric duty cycle DAB modulation strategy based on variable inductance

作　　者：李雨辰 马成廉 黄璐 梁福波 LI Yuchen;MA Chenglian;HUANG Lu;LIANG Fubo(Key Laboratory of Modern Power System Simulation and Control&Renewable Energy Technology,Ministry of Education(Northeast Electric Power University),Jilin 132012,China;Gansu Tongxing Intelligent Technology Development Co.,Ltd.,Lanzhou 730050,China;State Grid Gansu Integrated Energy Service Co.,Ltd.,Lanzhou 730070,China)

机构地区：[1]现代电力系统仿真控制与绿色电能新技术教育部重点实验室(东北电力大学),吉林吉林132012 [2]甘肃同兴智能科技发展有限责任公司,甘肃兰州730050 [3]国网甘肃综合能源服务有限公司,甘肃兰州730070

出　　处：《电气应用》2024年第10期101-109,共9页Electrotechnical Application

基　　金：吉林省教育厅科学技术研究项目(JJKH20230117KJ)。

摘　　要：探讨了在双有源桥式(OAB)变换器中使用可变电感器作为能量传输的元件,通过将受控可变电感器作为额外的受控量,可以扩展相移DAB操作中的最佳切换区域。与传统解决方案相比,可以在更宽的负载范围内实现高效率。该方法将可变电感和移相比作为主要控制参数,能够在宽负载变化范围下实现零电压开关导通以及减少回流功率等目标。其中,可通过对双E形电感器施加偏置电流实现可变电感器电感的变化。最后通过实验验证了所提方法的有效性和优越性,结果表明该方法能够在宽负载范围下实现零电压开关导通以及减少回流功率。Explores the use of variable inductance(VI)as an energy transfer element in dual active bridge(DAB)converters.By using controlled variable inductors,the optimal switching area in the operation of phase-shifting DABs can be extended,and thus,compared to traditional solutions,high efficiency can be achieved over a wider load range.This method takes variable inductance and phase shift ratio as the main control parameters,which can achieve zero voltage switching(ZVS)in a wide range of load changes,as well as reduce reflux power and other goals.Among them,the proposed variable inductance can change its inductance by applying bias current to the dual E-type inductor.Finally,the effectiveness and superiority of the proposed method were verified through experiments,and the results showed that the method can achieve ZVS and reduce reflux power over a wide load range.

关 键 词：高频变压器 可变电感 双有源桥式变换器 不对称占空比 零电压开关 

分 类 号：TM46[电气工程—电器]