Transatlantic Workshop on Electric Vehicles and Grid Connectivity

Transatlantic Workshop on Electric Vehicles and Grid Connectivity Opportunities for Cooperation on Technology Development to Support a Robust Vehicle-Grid Interface Keith Hardy Argonne National Laboratory Vehicle Technologies Program US Department of Energy

Transatlantic Workshop on Electric Vehicles and Grid Connectivity Opportunities in the Vehicle-Grid System Energy Producers Utilities Human Machine Interface (HMI) * Grid Operators • 2 -way communication to vehicle/grid • Practical evaluation of protocols • SAE J 2836/2847/2931 Power Panel Back Office Software • Comprehend vehicle roaming • Integrate EVs in the smart grid Smart Meter Streamlined EVSE Installation Process * • Best practices and permitting template Consumer-Vehicle-Grid Communication ► Vehicle ID, location, charge requirements ◄ Power available, price, recommended charge time • SAE J 2836 ISO/IEC 15118; general info (use cases) • SAE J 2847 ISO/IEC 15118; detailed info (messages) • SAE J 2931 ISO/IEC 15118; protocol (requirements) Universal Communication Technology * • e. g. , Software Defined Radio-SDR Verification of EVSE Interoperability * • SAE J 2953 * Joint (government-industry) Grid Interaction Tech Team projects Home Network Vehicle Test Procedures • Fuel/energy consumption • Consumer labeling (e. g. , EPA) • SAE J 1711 EV Sub-meter * • Revenue grade • Enables preferential and time-of-use pricing Electric Drives • Test procedures and ratings • SAE J 2907/2908 Battery System Safety • Test procedures, shipping and handling • SAE J 2929 Charge Couplers • Global interoperability • SAE J 1772

Transatlantic Workshop on Electric Vehicles and Grid Connectivity Software Defined Radio (SDR): Revenue Grade Sub-meter: - Utility owns sub-meter, customer owns base - Based on <$5, 60 A AC disconnect device - Current sensor technology is > 0. 1% accuracy - Revenue grade ‘subtractive’ meter is 0. 3% class - Communication based on Zigbee/UMAN via SDR - Enables Single Chip Communication Solution - Vehicle-Grid Communication - Flexible Universal Metropolitan Area Network - OFDM modulation achieved in 16, 000 gate FPGA - Programmed for Zigbee (IEEE 802. 15. 4 -2006) - UMAN (IEEE 802. 15. 4 g); flexible baseband frequency Prototype SDR implemented on (non-optimized) evaluation board Current sensors built into bus bars; Single board metrology, 90 x 50 x 25 mm Potential cooperative field evaluation and access OFDM modulation/demodulation example

Transatlantic Workshop on Electric Vehicles and Grid Connectivity Interactive Vehicle-Grid Connectivity Technology Demonstrator