Standard IEC 61851-1, search on the IEC official website, this series of standards a total of 6, the current version is shown in the figure below; IEC 61851-1 defines three connection modes and four charging modes, as follows
Connection Case A: This connection method is that the charging cable is permanently fixed on the electric vehicle, and the plug is connected to the charging network.
Connection Case B: This connection method is that the charging wire is detachable between the electric vehicle and the charging network, and the two are connected through the charging wire when charging.
Connection Case C: This connection mode is that the charging wire is permanently fixed on the charging network, and the plug is connected to the electric vehicle when charging.
Charging Mode 1: Mode 1 is the way the electric vehicle is connected to the standard socket of the AC power supply network using cables and plugs, neither of which is equipped with any supplementary guides or auxiliary contacts; It is the flying line charging, which is not allowed in Chinese GBT standard.
Charging mode 2: Mode 2 is the way that electric vehicles use AC power supply equipment to connect to the standard socket of the AC electric vehicle power supply network. The AC electric vehicle supply equipment has cables and plugs, control guidance function and anti-electric shock protection system located between the standard plug and the electric vehicle; It’s a control guidance and protection circuit on top of the flight wire.
Charging Mode 3: Mode 3 is the way the electric vehicle is connected to the AC electric vehicle supply device (the device is permanently connected to the AC power supply network), it has a control guidance function, which can be extended from the AC electric vehicle supply device to the electric vehicle; It’s a typical AC charging method.
Charging mode 4: Mode 4 is the way that the electric vehicle uses the DC electric vehicle supply device to connect to the AC or DC power supply network, and it has the control guidance function, which can be extended from the DC electric vehicle supply device to the electric vehicle; That’s DC charging.
In summary, the four charging modes are summarized as follows.
In addition, details such as charge guidance circuits are also defined in the appendix to IEC 61851-1
