一种基于滑模控制的双向DC/DC变换器的研究
|
摘要
论文针对航空静止变流器前端DC/DC级在大扰动下系统响应的快速性和鲁棒性,本文采用一种以变换器状态变量误差的线性组合的滑模算法为主控制器,以BUCK/BOOST双向DC-DC变换器为被控对象对该拓扑进行模态分析,其次对两种工作模态下分别进行滑模面的设计及可达性条件的证明。在Matlab/Simulink环境下,进行仿真验证,与PI算法进行对比分析。仿真结果表明该滑模算法在大扰动下对系统响应的快速性及鲁邦性较PI算法有较大的改善和提高。
Based on fast response and robustness of front-end DC/DC stage of aeronautical static converter under large disturbance, the paper takes a sliding mode algorithm based on linear combination of converter state variable errors as main controller, carries on topology modal analysis with controlled object of BUCK/BOOST bidirectional DC-DC converter, then designs sliding mode surfaces under two modes respectively, proves the accessibility condition. Under environment of Matlab/Simulink, carry out simulation and compare with PI algorithm. Simulation results show the fast response and robustness of sliding mode algorithm under large disturbances are better than those of PI algorithm.
Based on fast response and robustness of front-end DC/DC stage of aeronautical static converter under large disturbance, the paper takes a sliding mode algorithm based on linear combination of converter state variable errors as main controller, carries on topology modal analysis with controlled object of BUCK/BOOST bidirectional DC-DC converter, then designs sliding mode surfaces under two modes respectively, proves the accessibility condition. Under environment of Matlab/Simulink, carry out simulation and compare with PI algorithm. Simulation results show the fast response and robustness of sliding mode algorithm under large disturbances are better than those of PI algorithm.
引文
[1]张志强.双向DC/DC变换器的设计与研究[D].哈尔滨理工大学,2015.
[2]Lai J.A Low-Cost Soft-Switched DC/DC Converter for Solid-Oxide Fuel Cells[J].2009.
[3]Yu W,Qian H,Lai J S.Design of high-efficiency bidirectional DC-DC converter and high-precision efficiency measurement[C]Industrial Electronics,2008.IECON 2008.Conference of IEEE.IEEE,2009.
[4]Wu T F,Chen Y C,Yang J G,et al.Isolated Bidirectional Full-Bridge DC-DC Converter With a Flyback Snubber[J].IEEE Transactions on Power Electronics,2010,25(7):1915-1922.
[5]严仰光.双向直流变换器[M].江苏科学技术出版社,2004.
[6]杨苹,吴捷,刘明建,等.基于变结构理论DC-DC功率变换器建模[J].华南理工大学学报(自然科学版),2002,30(12):6-11.
[7]李鹏.传统和高阶滑模控制研究及其应用[D].国防科学技术大学,2011.
[2]Lai J.A Low-Cost Soft-Switched DC/DC Converter for Solid-Oxide Fuel Cells[J].2009.
[3]Yu W,Qian H,Lai J S.Design of high-efficiency bidirectional DC-DC converter and high-precision efficiency measurement[C]Industrial Electronics,2008.IECON 2008.Conference of IEEE.IEEE,2009.
[4]Wu T F,Chen Y C,Yang J G,et al.Isolated Bidirectional Full-Bridge DC-DC Converter With a Flyback Snubber[J].IEEE Transactions on Power Electronics,2010,25(7):1915-1922.
[5]严仰光.双向直流变换器[M].江苏科学技术出版社,2004.
[6]杨苹,吴捷,刘明建,等.基于变结构理论DC-DC功率变换器建模[J].华南理工大学学报(自然科学版),2002,30(12):6-11.
[7]李鹏.传统和高阶滑模控制研究及其应用[D].国防科学技术大学,2011.