| Due to the pressure of environmental protection,electric vehicles are gradually replacing traditional fuel vehicles and becomes a new means of transport.The development of electric vehicles is currently subject to strong government support.But electric vehicles still face many technical challenges.The electrical parts of electric vehicles in addition to its electrical portion drag outside,but also includes its DC-DC power converter section of the vehicle,the vehicle is responsible for connecting the converter 12 V DC bus and dragged it for high voltage DC bus,and control the power flow between the two DC bus.In fact,the high voltage DC bus voltage is typically about 400 V,in charge of the drive motor to drive the car forward,and the 12 V low voltage bus also exists on the electric vehicle for driving the same load with regular gasoline vehicles,namely front and rear lights,windows and audio.DC link connecting the two DC-DC power converters need to be designed to be highly efficient two-way converter. |
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