Control strategy design of 100 W fast response half bridge LLC resonant converter

Abstract

For the dynamic characteristics of communication power supply when there is an inflow of big data traffic, a design of half-bridge LLC resonant converter based on variable universe fuzzy-PID control is proposed, which can realize the fast response control. Based on the traditional-PID control, it′s also adopted fuzzy mathematics and fast scalar multiplication algorithms that can help to improve the fast convergence characteristic of the system. Later, MATLAB/simulink software was used to simulate this strategy, compared with the traditional PID control scheme. Finally, an experimental prototype was designed for experimental verification. The experimental results show that the LLC resonant converter under variable universe fuzzy PID control has faster response speed and better dynamic characteristics.

Keywords

• variable universe fuzzy-pid control
• half-bridge llc resonant converter
• communication power supply
• dynamic characteristics