PEMFC分布式发电的适用性仿真分析

Usability simulation analysis of PEMFC distributed generation

为了解质子交换膜燃料电池(PEMFC)应用于分布式发电的适用性,获取对其发展和建设具有参考价值和指导意义的结论,在现有的建模方程基础上,采用经过改进的等效电路,模拟对有限区域独立供电时可能发生的用电需求变化情况,进行了质子交换膜燃料电池分布式发电系统的仿真实验。从仿真中观察到的电流、电压及系统输出功率变化情况表明,采用质子交换膜燃料电池分布式发电系统时,应当根据供电区域的用电需求设置系统在适当的输出功率范围内运行,以获得稳定而良好的供电质量,提高系统的使用率。

In order to find out the usability of the PEMFC distributed generation, obtain valuable and significative conclusion, simulation experiments based on existing modeling equations and improved equivalent circuit were performed. In the experiments, the possible changes of the independent power supplying for a limited area were simulated. The currents, voltages and output powers of the system which were observed in the simulation showed that the PEMFC distributed generation system should be set up to work in suitable output power ranges for steady and good power supplying quality and improve the availability of the system.