Green hydrogen PEM fuel cell model problem

Dear collegues,

I am facing this error while i am simulating the PEM fuel cell model as a part of a microgrid in the SIMULINK. How cam i resolve it ??

Thanks in advance

An error occurred while running the simulation and the simulation was terminated

Caused by:

• ['Orabi_new_model/Solver Configuration']: At time 0.545853, one or more assertions are triggered. See causes for specific information.
• Cannot remove trace gas when trace gas mass fraction of moist air volume is zero. The assertion comes from: Block path: Orabi_new_model/Cathode Gas Channels/Pipe (MA)1Assert location: o In between line: 706, column: 5 and line: 706, column: 11 in file: C:\Program Files\MATLAB\R2022b\toolbox\physmod\simscape\library\m\+foundation\+moist_air\+elements\pipe.ssc

Answer 1

[Yifeng Tang]

Without seeing the model, I'll have to guess:

1) you are not supplying enough air to the cathode. The current will dictate the O2 (trace gas on the cathode side) consumption rate and once it's all consumed, you will get this error.

2) your initial condition didn't have enough O2 in there. Maybe the supply will soon pick up, but the amount of O2 initially wasn't enough so you run out early.

Could you please check how you specify or control the air flow into the cathode channel, and whether the initial conditions in the channel make sense?

[Ahmed Al Orabi]

[Ahmed Al Orabi]

I am trying to simulate the green hydrogen production microgrid but i am receiving that error

• ['Orabi_final/Solver Configuration']: Initial conditions solve failed to converge.
• Nonlinear solver to advance time one step failed to converge, residual norm too large.

Could you help ?

[Ahmed Al Orabi]

i am using the some of simulink examples and adjusting the parameters to suit my case study but i still receiving that error

[Bachir Alali]

i am using the some of simulink examples and adjusting the parameters to suit my case study but i still receiving that error.

i have the Same One , any one Know the Sultion ?

[Yifeng Tang]

@Ahmed Al Orabi most likely parametrization issue. If you could share the model, I can help take a look.