Max S. Dunn

Plugin 2010: Vehicle-Grid Communication

Posted by: Max Dunn on July 27, 2010 13:04:52

Standards and methods for vehicle-to-grid two-way communications.

• Sunil Chhaya, Electric Power Research Institute
• George Bellino, Chevrolet
• Rich Scholer, Ford Motor Company
• Axel Willikens, Daimler & Frank Steffen Walliser, Porsche

Managing Convergence of Evolving Technology Solutions With Standards

Sunil Chhaya, EPRI

• Near-term rollout emphasis on ubiquitous charging
• Standard plug J1772
• Patchwork of proprietary systems connect EVSEs to utilities
• Most consumers expect to charge at home
• Consumers positive about time-of-use electric rates (like cell phone plans)
• Vision: Open and Interoperable
• How do we get there? Need standards and move to bidirectional power flow

Vehicle Grid Communications Standards are Imperative

George Bellino, GM

• Needs global application standard like SE2.0
• NIST Smart Grid Interoperability Panel (SGIP) will help determine the vehicle communication
• SAE J2847 is the vehicle to utility communications
• IEC 1547 Interconnecting distributed energy resources with electric power systems
• Smart grid panel defined priorities:
  • Demand response and consumer energy efficiently
  • Wide area situational awareness
  • energy storage
  • electric transportation
  • advanced metering infrastructure
  • distributed grid mangage
  • cyber security
  • Network communications
• ISGAN - International smar grid action network: 15 international governments 
• Challenges: communication protocols not ready, PEV communication of AMI and HAN still 3 to 5 years out

PEV Standards Process and Status

Rich Scholer, Ford, Standards Committees

• J2836 - General info (use cases)
  • Dash 1 - Utility programs
  • Dash 2 - Off-board charger communications (fast charging)
  • Dash 3 - Reverse energy flow
  • Dash 4 - Diagnostics
  • Dash 5 - Customer and HAN
• J2847 - Detail info (messages, diagrams) same as J2836
• J2931 - Requirement and protocol
  • Dash 1 - General info
  • Dash 2 - Inband signaling - J1172
  • Dash 3 - PCL over power circuits
• J2836 and J2847 publish dates
  • Dash 1 - Utility requirements: Published 2010
  • Dash 2 - Fast charging: planned 3Q 2010
  • Dash 3 - Reverse energy flow: kickoff June 2010
• Trying to develop one standard worldwide, harmonizing with ISO/IEC.
• Long-term Plan A
  
  • PEV communicates with utility or HAN over the power line
• Short-term Plan B
  • Communicates with 12v wire
  • Will be ready to implement this year

 

Combo Charging Coupler - German Initiative Charging Interface

Axel Willikens, Daimler & Frank Steffen Walliser, Porsche

• Focus on DC fast charging and developing future-proof DC connector
• Current charging connector status: US - J1772, Europe - IC 62196-2-2, JEVS G105-1993
• Objectives: 
  • Backward compatible for AC
  • Same geometry for AC and DC charging: AC core the same with DC extensions
  • Voltage: 600V, power 100kw, pin size 8 mm
• No patent protection so is open for anyone to use