摘要
针对一种具有高电压传输比的新型Buck-Boost矩阵变换器(BBMC),研究采用自抗扰控制策略进行控制。阐述了该控制策略的基本原理,根据BBMC的电路结构并基于局部平均值的概念建立了相关数学模型,在此基础上研究了该控制策略的具体设计方法,并就其控制特性与传统的双闭环控制策略进行了对比分析,最后通过仿真对该控制策略的效果进行了验证。结果表明:该控制策略相对于双闭环控制策略不仅具有更好的动态性能,而且其输出波形的谐波失真度更小,稳态精度更高,因而具有更好的应用价值。
As to the new buck-boost matrix converter（BBMC） with high voltage transfer ratio,an auto-disturbance-rejection control strategy（ADRC） was proposed.The fundamental principle of this control strategy was introduced,and the mathematic model of the BBMC was established based on its topology and the concept of part average.The design method of ADRC for BBMC was clarified particularly based the above mathematical model,and the different characteristics between this control strategy and the conventional double-loop control strategy were compared.Finally the validity of these control strategies was tested by simulation.The results show that the system has better dynamic-state performance,and has stronger ability of harmonic suppression than double-loop control strategy,and lesser harmonic distortion and higher steady-state precision are obtained,which is of larger value of engineering application.
出处
《仪表技术与传感器》
CSCD
北大核心
2013年第4期77-80,共4页
Instrument Technique and Sensor
基金
湖南省自然科学湘潭联合基金(10JJ9007)
湖南省科技计划项目(2012GK3099)
湖南省科技计划项目(2011TP4005-4)
湖南省产学研结合创新平台项目(2010XK6066)
关键词
Buck-Boost矩阵变换器
自抗扰控制
对比分析
仿真
buck-boost matrix converter
auto-disturbance-rejection control
comparison and analysis
simulation
