A new control method was proposed in the current paper for controlling hybrid system consisting of fuel cell and battery. In the proposed control system, a method through which active power of fuel cell is supplied with a relatively high time constant was chosen contributing to enhancement of fuel cell life and maintenance of its terminal in the range of the nominal voltage. Furthermore, ensemble of fuel cell and inverter were used to supply instantaneous reactive power as well; which is possible by using an independent inverter together with fuel cell, and as such ,the setting will respond quickly and perfectly capable to instantaneously supply the reactive power whenever required for the system (voltage reduction or symmetrical 3‐phase short circuit). An ensemble consisting of battery and inverter has also been considered for supplying the instantaneous active power, which is connected to the circuit only at early times of change in the power demanded by the system. Its generation power declines after a couple of seconds simultaneously with increase in power of fuel cell until the demanded active power is completely supplied by the fuel cell ensemble.