改进型开关电源模块并联均流控制技术

Current-sharing of paralleled control technology for improved switch power supply modules

针对当前均流技术的特点,在双环控制的基础上加入了均流环控制,在MATLAB/SIMULINK下建立了并联均流系统的模型,并分别对三环进行了设计,其中电压环采用模糊控制器,可以显著改善系统的动态性能,体现出鲁棒性强。仿真实验结果进一步验证了该控制策略的优越性和灵活性。

In view of the characteristics of current sharing technologies, current sharing loop control was proposed on the basis of double loops controllers, the model of current sharing of paralleled system was established and three loops were designed respectively based on MATLAB/SIMULINK. Among three loops, voltage loop was made by using fuzzy controller, dynamic performance of the system was optimized dramatically and reflected a good robustness. The simulation results further verify the superiority and flexibility of the control strategy.