《航空高压直流供电系统中三相Vienna整流器的控制策略研究》之五——加电子负载的Vienna整流器的稳定性分析  

The Stability Analysis on Vienna Rectifier with Electronic Load

作　　者：李颖晖[1] 吴辰 李勐 雷晓犇[1] 韩建定[1] 刘聪[4] 朱喜华[5] LI Ying-hui;WU Chen;LI Meng;LEI Xiaoben;HAN Jianding;LIU Cong;ZHU Xihua(Aeronautics Engineering College,Air Force Engineering University,Xi’an 710038,China;Unit 95169 of the PLA of China,Nanning 530031,China;Technical Service Centre for Military Vocational Education,National University of Defense Technology,Changsha 410073,China;Aviation Maintenance NCO Academy,Air Force Engineering University,Xinyang 464000,China;Teaching and Research Department of Unit 95795 of the People's Liberation Army of China,Guilin 541003,China)

机构地区：[1]空军工程大学航天工程学院,西安710038 [2]中国人民解放军95169部队,南宁530031 [3]国防科技大学军事职业教育技术服务中心,长沙410073 [4]空军工程大学航空机务士官学校,河南信阳464000 [5]中国人民解放军95795部队,广西桂林541003

出　　处：《大电机技术》2019年第5期1-8,共8页Large Electric Machine and Hydraulic Turbine

基　　金：国家重点基础研究发展计划(973计划):大飞机结冰多重安全边界保护和操纵应对方法研究及验证(2015cb755805);国家自然科学基金面上项目:多因素耦合诱发飞机功能危险建模仿真在系统安全性设计中的应用研究(61374145)

摘　　要：为检验滑模控制策略在负载大范围变化时的有效性,对加入电子负载的Vienna整流器进行了稳定性分析。改进了Buck变换器中李雅普诺夫指数的计算方法,并通过最大李雅普诺夫指数和分岔图,分析了在输入电压、输出电容和负载电阻变化时,Buck变换器中存在的动力学现象;通过仿真分析了不同工作模式的Buck变换器作为电子负载对Vienna整流器的影响,并检验了突加突卸负载时交流侧电流和直流侧输出电压的稳态、瞬态特性。结果表明:当负载为工作在连续导电模式的Buck变换器时,在启动、突加突卸负载的过程中,稳态的交流侧电流谐波均达到了DO-160G的要求,输出直流电压的稳态、瞬态特性均符合国军标181A-2003的规定。To verify the effectiveness of the proposed control strategy under load changes over a wide range,this paper analyzes the stability of the Vienna rectifier with electronic load.The calculation method of the Lyapunov characteristic exponents in Buck converter is improved,and the nonlinear dynamics behaviors in the Buck converter are analyzed through the maximal Lyapunov characteristic exponent and the bifurcation diagram when the input voltage,output capacitance,and load resistance changes.Then,through the simulation,the effect of the Buck converter in different operating modes on Vienna rectifier is analyzed,and the steady-state and transient characteristics of the AC side current and the DC side output voltage after the sudden loading and unloading are tested.The results show that,when the Buck converter operating in CCM is used as the electronic load of the Vienna rectifier,steady-state AC side current harmonics can meet the requirements of DO-160G,the steady-state and transient characteristics of the output DC voltage can meet the requirements of 181A-2003 during startup,loading and unloading.

关 键 词：VIENNA整流器 BUCK变换器 非线性负载 稳定性分析 

分 类 号：TM461.4[电气工程—电器]