虚拟正交源优化电压合成策略在Buck型交流斩波器中的研究  

Research of the virtual orthogonal source optimized voltage synthesis strategy in the buck type AC chopper

作　　者：王瑜瑜[1] 刘少军[1] Wang Yuyu;Liu Shaojun(Xi′an Aeronautical Polytechnic Institute,Xi’an 710089,China)

机构地区：[1]西安航空职业技术学院,西安710089

出　　处：《电子测量技术》2020年第12期106-110,共5页Electronic Measurement Technology

基　　金：2019年度陕西省高等职业院校教育教学研究项目(19GZ009);2019年度西安航空职业技术学院院级科研计划项目(19XHZK-013)资助。

摘　　要：针对原有虚拟正交源电压合成策略所呈现的众多问题,在全频率域内对其实行了拓展,进而得到可以输出幅值、频率及相位不受任何限制的三相交流电压的虚拟正交源优化电压合成策略。首先在对三相Buck型交流斩波器拓扑结构分析的基础上,重点对同相基波、正序以及负序输出电压进行推导,并最终利用调制波归一化合成了任意的输出电压。最后利用MATLAB仿真软件,对一系列基于简单Buck型交流斩波器进行了仿真,使得新策略得到了验证。Aiming at the problems existing in the original virtual orthogonal source voltage synthesis strategy,it was expanded in the whole frequency domain,so as to obtain the strategy of virtual orthogonal source optimized voltage synthesis which can output any given amplitude,frequency and phase of three-phase AC output voltage.Firstly,the topology of AC chopper was analyzed,and the strategy of virtual orthogonal source optimized voltage synthesis based on the three-phase Buck type AC chopper was emphatically deduced.Next,the simulation of a series of AC chopper based on simple Buck type was made by the Matlab simulation software,and the new strategy was verified.At last,the new limitation of the output voltage existing the fundamental component was analyzed,and the basic features of the direct AC-AC converter topology suitable for the new strategy were summarized.

关 键 词：虚拟正交源优化电压合成策略 交流斩波器 拓扑结构 MATLAB 

分 类 号：TN86[电子电信—信息与通信工程]