Hi,
I understand that you want to simulate a 50kW Proton Exchange Membrane Fuel Cell (PEMFC) and with that you want to change the values of the PEMFC Mask and control the Upper Limit of the Flow rate.
If you open the power_fuel_cell model, you’ll find a Fuel Cell Stack block. When you double click on it the Block Parameters for this block open. Under the Parameters tab you’ll find a Present Model drop down, in that list you can select PEMFC – 50 kW – 625 Vdc option to simulate it.
Below the Fuel Cell Stack block is Flow rate regulator block which on double clicking will allow you to tune the parameters. Just before the Fuel Cell Stack block is saturation block from where you can change the Upper Limit of flow rate as desired.
