基于PEMFC延时特性的发电系统建模与控制  

Modeling and control strategy of generation system based on time delay characteristics of PEMFC

作　　者：冉莉莉[1] 石繁荣[1] 

机构地区：[1]西南科技大学信息工程学院,四川绵阳621010

出　　处：《电源技术》2017年第10期1416-1419,共4页Chinese Journal of Power Sources

摘　　要：针对质子交换膜燃料电池(PEMFC)系统延时特性,建立了1.2 k W PEMFC简化动态模型,并与实验数据对比验证了模型的有效性。在此基础上,构建了包含50 k W PEMFC系统、DC/DC变换器、DC/AC逆变器和滤波器在内的PEMFC发电系统模型,对并网运行和独立运行模式分别提出了同步PI电流控制和电压瞬时值反馈PI控制策略。仿真分析结果表明控制策略效果良好,能满足不同运行状态的要求。In view of the time delay characteristics of proton exchange membrane fuel cell （PMEFC） system,a 1.2 kW PEMFC simplified dynamic model was built.Compared with the experimental data,the validity of the model was verified.On this base,a PEMFC power system model including 50 kW PEMFC system,DC/DC converter,DC/AC inverter and filter was developed.Respectively for the operation mode of parallel operation and independent,synchronous PI current control and voltage instantaneous value feedback PI control strategy were proposed.Simulation results show that the effect of control strategy is good and can meet the requirements of different operating conditions.

关 键 词：质子交换膜燃料电池 DC/DC变换器 DC/AC逆变器 控制策略 

分 类 号：TM911.4[电气工程—电力电子与电力传动]