摘要
针对不对称半桥DC/DC变换器在燃料电池供电系统中的运用,利用状态平均法得出变换器的小信号数学模型,对其传递函数和控制手段作了阐述。根据系统输出电压要求和过流保护要求,构建了电压环和电流环双闭环控制方案。通过仿真和实验,验证了理论分析的正确性。
For asymmetrical half-bridge DC/DC converter in the power supply system of fuel cell vehicle m use, the mathematical model of small-signal converter is derived by utilizing the state-space average method, and its transfer function and control strategy is further represented. The control scheme of dual close-loop system consisting of current inner loop and voltage outer loops is constructed for the requirements of output voltage over-current protection. The correctness of theoretical analysis is verified through simulation and experimental waveforms.
出处
《煤矿机电》
2009年第5期44-47,共4页
Colliery Mechanical & Electrical Technology
基金
河南省教育厅自然科研资助项目(编号:2008A47009)
