IGMS: An Integrated ISO-to-Appliance Scale Grid Modeling System

Bryan Palmintier, Elaine Hale, Wesley Jones, Harry Sorensen, Brian Hodge, Tim Hansen, David Biagioni, Hongyu Wu

Research output: Contribution to journalArticlepeer-review

48 Scopus Citations


This paper describes the integrated grid modeling system (IGMS), a novel electric power system modeling platform for integrated transmission-distribution analysis that co-simulates off-The-shelf tools on high performance computing platforms to offer unprecedented resolution from independent system operator (ISO) markets down to appliances and other end uses. Specifically, the system simultaneously models hundreds or thousands of distribution systems in co-simulation with detailed ISO markets and automatic generator control-level reserve deployment. IGMS uses a new message passing interface-based hierarchical co-simulation framework to connect existing sub-domain models. Our initial efforts integrate open-source tools for wholesale markets, bulk ac power flow, and full-featured distribution systems including physics-based end-use and distributed generation models (many instances of GridLAB-D). The modular IGMS framework enables tool substitution and additions for multi-domain analyses. This paper describes the IGMS tool, characterizes its performance, and demonstrates the impacts of the coupled simulations for analyzing high-penetration solar photovoltaic and price responsive load scenarios.

Original languageAmerican English
Pages (from-to)1525-1534
Number of pages10
JournalIEEE Transactions on Smart Grid
Issue number3
StatePublished - May 2017

Bibliographical note

Publisher Copyright:
© 2010-2012 IEEE.

NREL Publication Number

  • NREL/JA-5D00-65223


  • co-simulation
  • distributed power generation
  • integrated transmission-distribution simulation
  • Power system simulation
  • solar power generation


Dive into the research topics of 'IGMS: An Integrated ISO-to-Appliance Scale Grid Modeling System'. Together they form a unique fingerprint.

Cite this