离心式空压机燃料电池系统防喘振仿真

An Anti-surge Simulation on Fuel Cell SystemBased on Centrifugal Compressor

以离心式空压机燃料电池系统为研究对象,建立了燃料电池系统空气子系统仿真模型,并设计了一种基于模糊控制理论的防喘振控制策略,基于Matlab/Simulink软件对设计的防喘振控制策略的有效性进行了仿真分析。仿真结果表明,该策略能够通过适时调节旁通阀开度而改变旁通流量,有效避免喘振工况的发生,并且在取得良好的控制品质的同时保证了系统的稳定性。

Taking the centrifugal air compressor fuel cell system as the research object,a simulation model of the air subsystem of the fuel cell system was established,and an anti-surge control strategy based on the fuzzy control theory was designed,and the effectiveness of the designed anti-surge control strategy was simulated and analyzed,based on Matlab/Simulink software.The simulation results show that the strategy can change the bypass flow rate,by adjusting the opening of the bypass valve,at the right time to avoid effectively the occurrence of the surge condition,and ensure the stability of the system,while achieving good control quality.