Fuel cell system and control method

A fuel cell system (FS) comprising:

• an energy supply (ES) comprising a fuel cell (1), a power distributor (4) connected to the fuel cell (1), and a secondary cell (7) connected to the power distributor (4);
• a load set (IL, 6) connected to the power distributor (4);
• and
• control means (8) for controlling the power distributor (4) to warm the energy supply (ES) by alternatively repeating:
• a first power distribution (S22;
• SS61) having first power (G;
• Gm) generated at the fuel cell (1) and distributed to the secondary cell (7) and the load set (IL, 6);
• and
• a second power distribution (S17;
• S71) having a combination (G+Dp;
• Gr+Dp) of second power (G;
• Gr) generated at the fuel cell (1) and third power (Dp;
• Dp) discharged from the secondary cell (7), distributed to the load set (IL, 6).

A control method of a fuel cell system (FS) comprising an energy supply (ES) comprising a fuel cell (1), a power distributor (4) connected to the fuel cell (1), and a secondary cell (7) connected to the power distributor (4), and a load set (IL, 6) connected to the power distributor (4), the control method comprising controlling the power distributor (4) to warm the energy supply (ES) by alternatively repeating:

• a first power distribution (S22;
• SS61) having first power (G;
• Gm) generated at the fuel cell (1) and distributed to the secondary cell (7) and the load set (IL, 6);
• and
• a second power distribution (S17;
• S71) having a combination (G+Dp;
• Gr+Dp) of second power (G;
• Gr) generated at the fuel cell (1) and third power (Dp;
• Dp) discharged from the secondary cell (7), distributed to the load set (IL, 6).