IEC 61980-2:2023

Overview

IEC 61980-2:2023 is an international standard established by the International Electrotechnical Commission (IEC) that defines specific requirements for communication and activities within magnetic field wireless power transfer (MF-WPT) systems used for electric vehicles (EVs). This standard focuses on the operational and functional aspects of MF-WPT system communication, addressing interoperability between EV supply equipment and vehicles in wireless charging scenarios. It is aligned to support MF-WPT systems in accordance with IEC 61980-3 and ISO 19363 standards.

The document lays a foundational framework for effective communication protocols, positioning techniques, authorization procedures, and power transfer activities specific to MF-WPT systems, aiming to enhance safety, interoperability, and efficiency in wireless EV charging.

Key Topics

• System Structure & Interoperability: Defines the architecture of MF-WPT communication systems and their interoperability concepts ensuring seamless interaction between charging units and EV devices.

• Communication Requirements: Details general and specific protocols for the communication setup, including pairing, authorization, compatibility checks, and control messaging during wireless power transfer sessions.

• Positioning and Alignment: Covers fine positioning and alignment verification methods essential to optimize power transfer efficiency and safety during docking and charging.

• Power Transfer Activities: Specifies procedures for preparing, initiating, performing, and stopping wireless power transmission from the supply device to the EV.

• Safety Monitoring & Diagnostics: Introduces continuous monitoring requirements and diagnostic activities to ensure safe operation throughout the charging process.

• Exception Handling: Prescribes handling mechanisms for communication errors, operational faults, and safety-related exceptions during MF-WPT interactions.

• Use Cases & Methodologies: Includes informative annexes describing practical use cases, signaling methods, and physical definitions of communication links relevant in MF-WPT systems.

Applications

IEC 61980-2:2023 is critical for manufacturers, developers, and operators involved in the design, implementation, and operation of magnetic field wireless power transfer systems for electric vehicles. Its applications include:

• Development of wireless EV charging stations that comply with international communication standards to ensure compatibility with various EV models.

• Enabling fine positioning technologies for automatic alignment between EVs and charging pads, improving charging efficiency.

• Guiding the implementation of secure and reliable communication protocols for authorization, service selection, and power transfer control in EV wireless charging.

• Providing frameworks to support service diagnostics and safety monitoring to mitigate risks during wireless power transfer operations.

• Establishing protocols for future innovations such as charging vehicles in motion, supporting two- and three-wheel EVs, and bidirectional power transfer systems.

This allows stakeholders to build reliable, interoperable, and safe wireless charging infrastructures that accelerate EV adoption and enhance user experience.

Related Standards

IEC 61980-2:2023 is part of the broader IEC 61980 series addressing electric vehicle wireless power transfer systems and is directly linked to:

• IEC 61980-1: General requirements for EV wireless power transfer systems.
• IEC 61980-3: Specific requirements for magnetic field wireless power transfer systems which complement the communication protocols defined in Part 2.
• ISO 19363: International standard defining wireless power transfer for electric vehicles, harmonizing with IEC specifications.
• Future standards expanding to cover two- and three-wheel vehicles, dynamic charging of EVs in motion, and bidirectional power flow.

Together, these standards create a comprehensive framework supporting the global development and deployment of wireless electric vehicle charging technologies.

Keywords: IEC 61980-2:2023, wireless power transfer, MF-WPT, electric vehicle charging, EV wireless charging, communication protocols, alignment verification, power transfer safety, EV charging standards, IEC electric vehicle standards.