IEC 61851-23 ED1.0: 2014版权与使用条款概览

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IEC 61851-23 ED1.0 2014.pdf 是一份关于交流充电国际标准的重要文档，它在电力系统通信领域具有显著地位。这份标准由出版商持有版权，所有权利受保护，用户必须遵循特定的使用条款。主要的使用规定包括： 1. 查看与打印权限：用户被允许在订阅范围内为参考目的打印一份文档，仅限于内部使用，且需确保日期标记，并在参考结束后通常不超过60个工作日销毁，除非满足条件（b）。 2. 特殊情况下复制：如果用户有投标或规格需求，需要将文档或其部分作为外部提交的一部分，可以复制必要的页面，但必须包含完整的版权声明。在这种情况下，用户需要通知SAIGlobal，并且纸质复印件仅限于内部保存和归档，视为文档的永久部分。该标准详述了电气和电子设备之间的通信接口，特别是涉及电动汽车（EV）和可再生能源系统的充电基础设施。它规范了数据交换、功能描述以及安全要求，旨在促进全球范围内的互操作性和兼容性。IEC 61851-23涵盖的数据模型和通信协议对于电动汽车充电站的设计、安装、测试和维护至关重要，确保了充电过程的高效、可靠和安全性。遵循此标准，制造商、运营商和服务提供商能够开发出符合国际标准的产品和服务，从而推动全球电动车市场的发展，并增强电网的灵活性和智能管理。同时，它也对政策制定者和监管机构提供了统一的技术框架，帮助他们制定相关法规，保障电动汽车用户的权益和公共利益。 IEC 61851-23 ED1.0 2014.pdf是电力系统通信领域的一份关键参考资料，它的实施和遵循对于推动电动汽车技术的标准化和全球化进程具有深远影响。

IEC 61851-23:2014 © IEC 2014 – 13 –

of electrical continuity of the protective conductor between d.c. EV charging station and EV

(emergency shutdown).

For non-isolated systems, in case of loss of earthing conductor continuity, the non-isolated

d.c. EV charging station shall be disconnected from a.c supply network (mains). Earthing

conductor continuity between the d.c. EV charging station and the vehicle shall be monitored.

For the rated voltage of d.c. 60 V or higher, the d.c. EV charging station shall perform an

emergency shutdown within 5 s after a loss of electrical continuity of the protective conductor

between d.c. EV charging station and EV.

NOTE The isolated d.c. EV charging station can be disconnected from a.c. mains when PE continuity is lost.

6.4.3.4 De-energization of the system

Addition:

In the case of failure in control circuit of d.c. EV charging station, such as short-circuit, earth

leakage, CPU failure or excess temperature,

the d.c. EV charging station shall terminate the

supply of charging current, and disconnect the supply of control circuit. In addition, the

conductor, in which earth fault or overcurrent is detected, shall be disconnected from its

supply.

Requirement for disconnection of EV is defined in 7.2.3.2.

Compliance check: under consideration.

Addition:

6.4.3.101 DC supply for EV

The d.c. EV charging station shall supply d.c. voltage and current to the vehicle battery in

accordance with VCCF’s controlling.

For regulated systems, the d.c. EV charging station shall supply regulated d.c. voltage or

current (not simultaneously, but as requested by the vehicle during charging) to the vehicle

battery in accordance with VCCF’s controlling. Requirements for charging performance of

regulated d.c. current / voltage are given in 101.2.1.1, 101.2.1.2 and 101.2.1.3 and 101.2.1.4.

In either case mentioned above, the maximum ratings of the d.c EV charging station shall not

be exceeded.

The vehicle can change the requested current and/or requested voltage.

6.4.3.102 Measuring current and voltage

The d.c. EV charging station shall measure the output current and output voltage. The

accuracy of output measurement is defined for each system in Annexes AA, BB and CC.

6.4.3.103 Retaining/releasing coupler

A means shall be provided to retain and release the vehicle coupler. Such means may be

mechanical, electrical interlock, or combination of interlock and latch.

6.4.3.104 Locking of the coupler

A vehicle connector used for d.c. charging shall be locked on a vehicle inlet if the voltage is

higher than 60 V d.c.

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– 14 – IEC 61851-23:2014 © IEC 2014

The vehicle connector shall not be unlocked (if the locking mechanism is engaged) when

hazardous voltage is detected through charging process including after the end of charging. In

case of charging system malfunction, a means for safe disconnection may be provided.

NOTE 1 The actuation portion of the locking function can be in either the vehicle connector or the vehicle inlet. It

is configuration dependent.

The d.c. EV charging station shall have the following functions in case the locking is done by

the d.c. EV charging station:

– electrical or mechanical locking function to retain the locked status, and

– function to detect the disconnection of the electrical circuits for the locking function.

NOTE 2 The locking function for each system is defined in Annexes AA, BB and CC.

NOTE 3 An example of lock function and disconnection detection circuit is shown in Annex AA.

For the tests of mechanical strength, refer to IEC 62196-3.

6.4.3.105 Compatibility assessment

Compatibility of EV and d.c. EV charging station shall be checked with the information

exchanged at the initialization phase as specified in 102.5.1.

6.4.3.106 Insulation test before charging

The d.c. EV charging station shall confirm the insulation resistance between its d.c. output

circuit and protective conductor to the vehicle chassis, including the charging station

enclosure, before the EV contactors are allowed to close.

If the required value is not met, the d.c. EV charging station shall send the signal to the

vehicle that the charging is not allowed.

Conformance is determined by measuring the insulation resistance as follows:

Any relays in the d.c. output circuit of the d.c. EV charging station shall be closed during the

test.

The required value of insulation resistance R shall be as shown in Formula (1):

≥ 100 Ω/V × U (1)

where

U is rated output voltage of the d.c. EV charging station.

6.4.3.107 Protection against overvoltage at the battery

The d.c. EV charging station shall perform an emergency shutdown and disconnect its supply

to prevent overvoltage at the battery, if output voltage exceeds maximum voltage limit sent by

the vehicle. In case of vehicle failure, disconnection from a.c. mains may not be necessary.

Specific requirement for detection and shutdown are defined in Annexes AA, BB and CC.

The vehicle can change the maximum voltage limit during charging process.

Compliance is checked according to the following test.

The d.c. EV charging station is connected to a d.c. voltage source or artificial load.

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IEC 61851-23:2014 © IEC 2014 – 15 –

The voltage of the d.c. voltage source or artificial load should be within the operating range of

the charging station.

The d.c. EV charging station is set to charge the d.c. voltage source at a current of more than

10 % of the maximum rated current of d.c. EV charging station.

A maximum voltage limit command lower than the voltage of the voltage source shall be sent

to the d.c. EV charging station.

Both the time between when the command is sent and the beginning of charging current

reduction, and the rate of reduction shall be measured.

The voltage of the voltage source, the way the command voltage limit is sent and the value of

the voltage limit can be chosen freely to comply with this test.

NOTE The selection of charging current can be made by the system or the user.

6.4.3.108 Verification of vehicle connector voltage

This clause is only applicable for charging stations which are responsible for locking of

vehicle connector, such as system A and system B.

The d.c. EV charging station shall not energize the charging cable when the vehicle

connector is unlocked. The voltage at which the vehicle connector unlocks shall be lower

than 60 V.

6.4.3.109 Control circuit supply integrity

If an earth fault, short circuit or overcurrent is detected in output circuit of d.c. EV charging

station, the power circuit shall be disconnected from its supply, but the power supply for

control circuit shall not be interrupted unless the power circuit interruption is due to a

loss of a.c. supply network (mains).

6.4.3.110 Short circuit test before charging

With the EV connected to the d.c. EV charging station and before the EV contactor is closed,

the d.c. EV charging station shall have a means to check for a short circuit between d.c.

output circuit positive and negative for the cable and vehicle coupler.

Compliance test specifications are defined in Annexes AA, BB and CC (under consideration).

6.4.3.111 User initiated shutdown

The d.c. EV charging station shall have a means to allow the user to shut down the charging

process.

6.4.3.112 Overload protection for parallel conductors (conditional function)

If more than one conductor or wire and/or vehicle connector contact is used in parallel for d.c.

current supply to the vehicle, the d.c. EV charging station shall have a mean to ensure, that

none of the conductors or wires will be overloaded.

NOTE For example, the currents on the different paths can be monitored or more than one power source can be

used.

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– 16 – IEC 61851-23:2014 © IEC 2014

6.4.3.113 Protection against temporary overvoltage

For stations serving a maximum output voltage up to 500 V, no voltage higher than 550 V

shall occur for more than 5 s at the output between DC+ and PE or between DC- and PE.

For stations serving a maximum output voltage above 500 V and up to 1 000 V, no voltage

higher than 110 % of d.c. output voltage shall occur for more than 5 s at the output between

DC+ and PE or between DC- and PE. See Figure 101.

For voltage above 1 000 V: under consideration.

The d.c. EV charging station shall terminate the supply of charging current and disconnect the

d.c. power circuit from its supply within 5 s, to remove the source of overvoltage (see

5.3.3.2.3 in IEC 60664-1:2007). This shall also apply in case of a first earth fault within the

isolated output part of the d.c. EV charging station.

For U

, as the minimum DC charger output voltage, the d.c. EV charging station shall limit the

voltage between DC+/- and PE at:

(2 U

+ 1 000) × 1,41 V or;

+ 1 200) × 1,41 V, whichever is less.

NOTE The voltage can be limited by reducing the overvoltage category or by adding a surge protection device

with sufficient clamping voltage.

Isolation

transformer

Additional

stage

(if any)

Earth

fault 1

Earth

fault 2

DC+

DC−

DC output

< 110% of maximun voltage limit send by EV

IEC 0683/14

Figure 101

−

Overvoltage protection in case of earth fault

6.4.3.114 Emergency shutdown

When the d.c. EV charging station detects an abnormality in the station and/or the vehicle, the

safety shall be ensured by the emergency shutdown as follows.

Stop charging by:

a) controlled expedited interruption of charging current or voltage to the vehicle, where d.c.

current descends with a controlled slope, and appropriate signaling to the vehicle, or

b) uncontrolled abrupt termination of charging under specific fault conditions, where there is

no control of current, and the vehicle may not be informed in time.

NOTE The d.c. EV charging station can achieve this requirement by exchange of information with the vehicle (see

102.4 and Annex AA, BB or CC).

Under specific conditions, the following disconnection, for example, is required according to

the risk assessment of the abnormality in the station or the vehicle:

– disconnection of the supply to the conductor in which an earth leakage is detected;

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– disconnection of the conductor in which an overcurrent is detected;

– disconnection of the d.c. power circuit from the supply if an insulation failure is detected.

General procedure of shutdown in the charging control process is given in 102.5.3.

6.4.4 Detail of optional function

6.4.4.3 Retaining/releasing of the coupler

Not applicable

6.4.4.5 Details of optional functions for mode 3

Not applicable.

Addition:

6.4.4.101 Wake up of d.c. EV charging station by EV

The charging station may support a standby mode to minimize power consumption. In this

case, the station shall be able to be woken up by the EV.

6.4.5 Details of pilot function

Replacement:

For d.c. charging, control pilot function is mandatory. The control pilot function shall be

capable of performing at least the mandatory functions described in 6.4.3.1, 6.4.3.2, 6.4.3.3

and 6.4.3.4, and may also be capable of contributing to optional functions described in 6.4.4.

Addition:

6.101 Classification

DC EV charging stations and systems may be classified as follows.

6.101.1 Category

6.101.1.1 According to system structure:

– isolated d.c. EV charging station, according to the type of insulation between input and

output:

a) basic insulation,

b) reinforced insulation,

c) double insulation,

– non-isolated d.c. EV charging station.

6.101.1.2 According to system control:

– regulated d.c. EV charging station:

a) controlled current charging,

b) controlled voltage charging,

c) combination of a) and b),

– non-regulated d.c. EV charging station.

6.101.1.3 According to power receiving:

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