| 摘要 |
A fuel cell-auxiliary energy hybrid vehicle electric power system, and its control method are provided to complement the slow dynamic output power characteristic of a fuel cell and to improve the acceleration performance of vehicles. A fuel cell-auxiliary energy hybrid vehicle electric power system comprises a fuel cell part(20) which comprises a fuel cell stack; an auxiliary energy part(40) which comprises an auxiliary energy device; a drive part(50) which comprises an inverter and a motor and is driven by the energy of the fuel cell part and the auxiliary energy part; and an electric power conversion part(30) which is connected between the fuel cell part and the auxiliary energy part to distribute and control the electric power, wherein the maximum voltage of the auxiliary energy part is equal to or greater than the maximum voltage of the fuel cell part. |
