IEC 61980-1:2020

Overview

IEC 61980-1:2020 sets the general requirements for electric vehicle wireless power transfer (WPT) systems, specifically focusing on the supply devices used for charging electric road vehicles (EVs) through wireless methods. This standard applies to supply devices operating at up to 1,000 V AC and 1,500 V DC according to IEC 60038. Electric road vehicles covered by this standard include battery electric vehicles and plug-in hybrid electric vehicles (PHEVs) that utilize onboard rechargeable energy storage systems (RESS).

This second edition of IEC 61980-1 replaces the 2015 version and represents a significant technical revision by broadening the scope to be applicable to any WPT technology and reorganizing technology-specific requirements into separate parts of the IEC 61980 series. It also addresses essential aspects such as electrical safety, communication protocols, efficiency, alignment, and electromagnetic compatibility (EMC) of wireless power supplies.

Key Topics

• Scope and Applicability
  Covers supply devices for wireless charging of electric road vehicles, including those powered by onsite energy storage, but excludes off-road vehicles, trolley buses, and rail vehicles. Vehicle-side requirements, as well as safety aspects during maintenance, are outside this document's scope.

• Safety and Protection Requirements
  Includes comprehensive specifications for electrical safety of supply devices, such as protection against electric shock, overcurrent, short circuit withstand, insulation resistance, dielectric strength, and temperature rise limitations to prevent thermal incidents.

• Communication Systems
  Defines communication protocols between the wireless power supply device and the vehicle to enable control, efficiency optimization, and alignment during power transfer, ensuring interoperability and safe operation.

• Efficiency and Alignment
  Specifies performance-related criteria including power transfer efficiency and alignment accuracy between transmitter and receiver components to maximize wireless charging effectiveness.

• Electromagnetic Compatibility (EMC)
  Addresses immunity and emission requirements ensuring WPT systems do not cause or suffer interference within their operating environments. It includes specific limits for magnetic field strengths in targeted frequency ranges.

• Construction and Mechanical Requirements
  Details requirements for device dimensions, mechanical strength, resistance to heat and fire, corrosion resistance, and protective enclosures, ensuring product durability and user safety.

• Marking and Instructions
  Specifies requirements for clear labeling and operating instructions to ensure correct installation and use.

Applications

IEC 61980-1:2020 is essential for manufacturers, designers, and testing laboratories involved in:

• Development and certification of wireless power transfer supply devices for electric vehicles
• Integration of wireless charging infrastructure supporting electric road vehicles and plug-in hybrids
• Ensuring compliance with international safety, performance, and EMC standards in EV wireless charging systems
• Facilitating interoperability and communication standards between charging infrastructure and EVs
• Supporting the expansion of wireless charging technologies in urban, residential, and commercial charging scenarios

This standard guides the creation of reliable, safe, and efficient wireless charging systems that promote the adoption of electric mobility by providing convenient, contactless EV charging solutions.

Related Standards

• IEC 60038 – Standard voltages, providing the foundational voltage ranges applicable to WPT supply devices
• IEC 61851-1 – Electric vehicle conductive charging system – General requirements (referenced and modified for WPT terminology)
• IEC 61980-2 & IEC 61980-3 – Technology-specific standards covering mid-frequency WPT systems and other wireless power transfer technologies
• EMC Standards – Various IEC standards addressing electromagnetic compatibility that supplement the EMC requirements in this standard

These related standards ensure comprehensive safety, interoperability, and performance in the overall ecosystem of electric vehicle charging infrastructure.

Keywords: IEC 61980-1:2020, electric vehicle wireless power transfer, EV wireless charging, WPT safety requirements, wireless charging system standard, EV supply device standards, electric vehicle charging interoperability, EMC for wireless power transfer, electric mobility standards, IEC WPT series.