The composition of new energy electric vehicles includes: electric drive and control system, driving force transmission and other mechanical systems, and work installation to complete established tasks. The electric drive and control system is the center of electric vehicles, and it is also the biggest difference from vehicles with internal combustion engines. Electric drive and control
The control system is composed of drive motor, power supply and motor speed control installation. The other installations of electric vehicles are basically the same as those of internal combustion engine vehicles.
The function of the electric vehicle transmission installation is to transmit the driving torque of the electric motor to the drive shaft of the vehicle. When the electric wheel drive is used, most of the transmission installation components can often be neglected. Since the electric motor can be started with a load, the clutch of a traditional internal combustion engine vehicle is not needed in an electric vehicle. Since the rotation of the driving motor can be changed through circuit control, the electric vehicle does not need the reverse gear in the transmission of the internal combustion engine vehicle. When the stepless speed regulation control of the electric motor is adopted, the electric vehicle can neglect the transmission of the traditional vehicle. When using electric wheel drive, the electric vehicle can also omit the differential of the traditional internal combustion engine vehicle transmission system.
The operating characteristics of the electric vehicle battery conversion station, the key technology and control strategy for the conversion station as a distributed energy storage unit to connect to the grid; the selection criteria, group methods and system plans for the battery echelon application; the conversion station for multi-purpose converter installation; the conversion station Integrated monitoring system with energy storage station; integrated demonstration project of conversion station and energy storage station.
Electric vehicle charging demand characteristics and scope The impact of electric vehicle charging on the power grid; electric vehicle orderly charging control management system; electric vehicle orderly charging experimental system.
Control strategies and key technologies for the interaction of electric vehicles with the power grid; electric vehicle smart charging and discharging machines, smart on-board terminals, and electric vehicle and power grid interaction and harmony control system; electric vehicle and power grid interaction experimental verification system; electric vehicle charging and discharging equipment inspection and testing technology .
New charging and discharging technology for electric vehicles; intelligent charging and discharging control strategy and detection technology for electric vehicles; key technology for interactive operation of charging equipment and power grid.
Scoped electric vehicle battery replacement technology, metering and billing, asset management technology; commercial form of charging equipment operation; and plan for establishing an operation management system based on the Internet of Things intelligent charging and replacement service network.