Electric vehicle charging and discharging bi-directional interaction –
Part 1: General Principle
1 Scope
This document stipulates the architecture, participants, interactive functions, operation methods and application scenarios when electric vehicles form a charging and discharging bi-directional interaction system through charging and discharging equipment and power grids or loads.
This document is applicable to the design, construction and operation of vehicle-to-grid system through charging and discharging equipment and coordinated charging equipment.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 18487.1 Electric vehicle conductive charging system - Part 1: General requirements
GB/T 29317 Terminology of electric vehicle charging/battery swap infrastructure
GB/T 33592 Specification of operation and controlling for distributed resources connected to power grid
NB/T 33028 Terminology of electric vehicle charging and discharging infrastructure
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 18487.1, GB/T 29317 and NB/T 33028 as well as the following apply.
3.1
vehicle to X; V2X
operation mode in which electric vehicle power battery is connected with power grid or load through charging and discharging equipment, and participates in power supply as energy storage unit
Note: Power grid or load includes public power grid, building power supply and distribution system, home power supply and distribution system, electric vehicle traction battery, power load, etc.
[GB/T 29317-2021, 10.1]
3.2
vehicle to grid; V2G
operation mode in which electric vehicle power battery is connected with public power grid through charging and discharging device and participates in power supply of public power grid as energy storage unit to realize bi-directional energy flow
[GB/T 29317-2021, 10.1.1]
3.3
vehicle to building; V2B
operation mode in which electric vehicle traction battery is connected with building power supply and distribution system through charging and discharging equipment and participates in building power supply as energy storage unit to realize bi-directional energy flow
[GB/T 29317-2021,10.1.2]
3.4
vehicle to home;V2H
operation mode in which electric vehicle power battery is connected with home power supply and distribution system through charging and discharging device and participates in home power supply as energy storage unit to realize bi-directional energy flow
[GB/T 29317-2021,10.1.3]
3.5
vehicle to vehicle; V2V
operation mode in which the power batteries of two electric vehicles are interconnected through the charging and discharging device to realize energy flow
[GB/T 29317-2021,10.1.4]
3.6
vehicle to load; V2L
operation mode in which the power battery of electric vehicle is interconnected with load through the charging and discharging device and supplies power to load as energy storage unit
[GB/T 29317-2021,10.1.5]
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Architecture
5 Participants
6 Interaction functions
7 Mode of operation
8 Application scenarios
