The invention provides a hybrid power source, an energy supply system using the same and an electric automobile. The hybrid power source is provided with a plurality of first-level direct-current energy supply devices and second-level direct-current energy supply devices. The second-level energy supply devices are connected in series. The first-level energy supply devices and the second-level energy supply devices are connected through one-way or double-way DC-DC converters one by one. According to the hybrid power source, the energy supply system using the same and the electric automobile, power batteries and super capacitors serve as the first-level direct-current energy supply devices and the second-level direct-current energy supply devices, the working voltage of the DC-DC converters is lowered through multiple converters, the working frequency of the DC-DC converters can be increased, the working efficiency of the DC-DC converters is improved accordingly, and the problems that in the prior art, DC-DC converters in a hybrid power source are large in size, high in cost, low in energy conversion efficiency, large in potential fault risk and the like are solved.
Hybrid power source, energy supply system using same and electric automobile
2015-11-18
Patent
Electronic Resource
English
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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