GB/T 42711-2023 (English Version)

Standard No.: GB/T 42711-2023
Language: Chinese, Available in English version
Release Date: 2023
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 42711-2023

Scope: This document specifies the general principles, technical requirements, test preparation, test methods and inspection rules for wireless power supply systems in multi-story parking garages. This document is applicable to the design, development and testing of wireless power supply equipment for DC charging and AC charging vehicles in multi-story parking garages.

Introduction

1. Background and significance of standard formulation

With the acceleration of urbanization, parking space resources are becoming increasingly scarce, and multi-story parking garages have been widely used as an efficient solution. As an important innovation in the field of electric vehicle charging, wireless power supply technology is of great significance in multi-story parking garages.

2. System Architecture and Power Level

Category	MF-WPS1	MF-WPS2	MF-WPS3	MF-WPS4	MF-WPS5	MF-WPS6	MF-WPS7
Power (P)/kW	P≤3.3	3.3	6.6	10	20	(omitted)	P>60

3. Technical requirements and safety specifications

System protection level:The protection level of the wireless power supply system should at least meet IP54 to ensure stable operation in harsh environments.

Insulation strength requirements:The system insulation resistance and dielectric strength must comply with GB/T38775.1-2020 standards to ensure electrical safety.

4. System performance and efficiency

Rated working state:The system efficiency is not less than 85%, and the efficiency is not less than 82% under the allowable offset state.

Operating frequency range:It must comply with the "Radio Frequency Division Regulations of the People's Republic of China" and the requirements of the International Telecommunication Union to ensure electromagnetic compatibility.

5. Implementation suggestions and case analysis

Case: Implementation of wireless power supply system in a certain city's multi-story parking garage

In actual application, the MF-WPS4 power level (10

GB/T 42711-2023 Referenced Document

GB/T 19596-2017 Terminology of electric vehicles
GB/T 22794 Type F and type B residual current operated circuit-breakers with and without integral overcurrent protection for household and similar uses
GB/T 26476 Mechanical parking system—Vocabulary
GB/T 38775.1-2020 Electric vehicle wireless power transfer—Part 1:General requirements
GB/T 38775.2-2020 Electric vehicle wireless power transfer—Part 2: Communication protocols between on-board charger and wireless power transfer device
GB/T 38775.3 Electric vehicle wireless power transfer—Part 3: Specific requirements
GB/T 38775.4 Electric vehicle wireless power transfer—Part 4：Limits and test methods of electromagnetic environment
GB/T 38775.5 Electric vehicle wireless power transfer—Part 5: Electromagnetic compatibility requirements and test methods
GB/T 38775.6 Electric vehicle wireless power transfer—Part 6：Interoperability requirements and testing—Gground side
GB/T 4208 Enclosure protection level (IP code) "Amendment No. 1" GB/T 4208-2017

GB/T 42711-2023 history

2023 GB/T 42711-2023 Technical requirements and test specifications for wireless power supply system of three-dimensional parking garage