NOVELTY - Mixed energy system comprises a micro gas power generating device, a wind power generating device, a solar energy utilizing device and a fuel battery, which are respectively connected with a direct-current bus. The micro gas power generating device, the wind power generating device, the solar energy utilizing device and the fuel battery are further connected with the energy storing device. The direct-current bus is connected with the local load by an alternating-current and direct-current conversion device and is further connected with the power system.    USE - Used as a mixed energy system.    ADVANTAGE - The mixed energy system: provides electric energy, heat energy and hydrogen gas using the solar energy and the wind energy and regulates the fuel battery, the micro gas power generating electric machine, the air compressed device and the energy storing device; and is connected with the power system to ensure the continuity and stability of the provided energy.    DETAILED DESCRIPTION - Mixed energy system comprises a micro gas power generating device, a wind power generating device, a solar energy utilizing device and a fuel battery, in which they are respectively connected with a direct-current bus. The micro gas power generating device, the wind power generating device, the solar energy utilizing device and the fuel battery are further connected with the energy storing device. The direct-current bus is connected with the local load by an alternating-current and direct-current conversion device and is further connected with the power system by the alternating-current and direct-current conversion device in a bidirectional manner. The micro gas power generating device is connected with a compressed air energy storing device and a heat supply device, where the wind power generating device is connected with the compressed air energy-storing device in a bidirectional manner and connected with a hydrogen producing device. The solar energy utilizing device is connected with the heat supply device and the hydrogen producing device, where the hydrogen producing device is connected with the fuel battery.