Design of A2DOF Controller for LLC Current-Resonant DC-DC Converters with delay time

被引：0
|
作者：
Umetsu, Takamichi [1 ]
Suzuki, Takehiro [1 ]
Higuchi, Kohji [1 ]
Jirasereeamornkul, Kamon [2 ]
机构：
[1] Univ Electrocommun, 1-5-1 Chofu Ga Oka, Chofu, Tokyo 1828585, Japan
[2] KMUTT, 126 Pracha Uthit Rd, Bangkok 10140, Thailand
来源：
2015 12TH INTERNATIONAL CONFERENCE ON ELECTRICAL ENGINEERING/ELECTRONICS, COMPUTER, TELECOMMUNICATIONS AND INFORMATION TECHNOLOGY (ECTI-CON) | 2015年
关键词：
LLC current-resonant; DC-DC converter; approximate; 2DOF; digital robust control; input delay time; micro-processor;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
When a pulse frequency and a load resistance of LLC current-resonant converters are changed, the static and dynamic characteristics are varied greatly. This is the prime reason why controlling LLC converters is difficult. In particular, the influence of delay time isn't negligible at sudden load change. In this paper, an A2DOF (Approximate 2-Degree-Of Freedom) controller with considering the input delay time is proposed to suppress the output voltage variation at the load sudden change and improve the settleing time of output voltage in dynamic load response. Experimental studies using a micro-processor for the controller demonstrate that this type of digital controller is effective to suppress the variation and influences of input delay time.
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页数：6
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