SDDB is a tool designed for managing dynamic models submitted for a large region by its members, and for assembling dynamic models matching specified powerflow cases for stability studies. The tool is currently being used in the annual effort of developing NERC/ERAG US/Canada Eastern Interconnection (EI) base stability cases.


  • Multi-user, web-hosted SQL database

  • Support for all dynamic models used in EI

  • Flexibility in adding new models

  • Facilities for model submission, modification, verification, and approval

  • Support for all data verification rules by NERC

  • Data auditing and usage tracing

  • User management and administration tools

  • Export of dynamic models matching specific powerflow cases

OtherSoftwareBrad Yuen