摘要
针对级联型逆变器级联单元较多时存在各单元直流电源及开关元件利用率不平衡问题,根据混沌映射具有随机性和确定分配的特点和在基于随机函数的均衡控制下各直流电源及开关元件工作概率相等,可用于级联型逆变器的分析,介绍了用An混沌映射法、帐篷映射法实现均匀分配,并通过Matlab/Simulink进行仿真的研究。仿真实验结果说明采用混沌方法产生随机数均衡控制级联逆变器是有效的。该方法思路简单,易于实现,无时间相关性,易于嵌入各种控制方式,有较好的应用前景。
When number of cascaded unit increases, there exists a problem of unbalance usage in DC power and switching devices at each unit. Taking twofold cascaded inverter as example, and using randomcity and distribute e- quality inbred in the chaos mapping, we realized, the balance control in the cascaded inverter. It can be concluded from the distributed procedure based on random function that the active probability of each DC power source and switching devices is the same. The method of an chaos mapping and tent mapping applied to cascaded inverter was proposed. The simulation results of Matlab/Simulink shows that,the chaotic mapping to engender the random number to realize balance control to cascade inverter is effective. The idea of balance control strategy to the cascade inverter based on the chaotic mapping is simple and it is easy to realize, there is no to inbred in all kinds of control mode. Accordingly, the balance control to the mapping have a very good application in the future. relativity on the time, and it is easy cascaded inverter based on chaotic
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2009年第7期1700-1704,共5页
High Voltage Engineering
基金
国家自然科学基金(50877053)~~
关键词
级联
逆变器
均衡控制
An混沌映射
帐篷映射
仿真
cascaded
inverter
balance control
An chaos mapping
tent mapping
simulation
