Energy management system using policy based hierarchical simulation framework

Sadik Kucuksari, Esfandyar Mazhari, Ryan Bloomfield, Young Jun Son

Research output: Contribution to conferencePaperpeer-review


The number of distributed generation (DG) and storage units has increased and the integration and management of DGs have gained vital importance since they are connected to the utility grid. A two-level hierarchical simulation is proposed for Energy Management System (EMS) that includes photovoltaic (PV) system, battery, and residential load that are connected to the utility grid. The high-level model implements an energy management policy containing energy distribution and grid purchase rules for optimum operational decision making. Using meta-heuristic optimization tools, the policy can be optimized by adjusting underlying parameters (e.g., level of minimum storage, grid price threshold) to minimize the total cost. The high-level model is based on system dynamics (SD), which simulates energy flows between different components based on the policy and sends control signals to the lower level. The low-level simulation is based on circuit-level continuous time modeling and concerns converters' control strategy to maintain the required power quality. Simulation models at both levels are federated via SOAP-based Web Services. Integrated simulations have been used to conduct experiments, whose results reveal that the proposed technique successfully controls the converters and provides uninterrupted power to the load with a policy that leads to minimum total cost.

Original languageEnglish (US)
Number of pages10
StatePublished - 2012
Event62nd IIE Annual Conference and Expo 2012 - Orlando, FL, United States
Duration: May 19 2012May 23 2012


Other62nd IIE Annual Conference and Expo 2012
Country/TerritoryUnited States
CityOrlando, FL


  • Circuit level modeling
  • Decision policy
  • Energy management
  • Hierarchical simulation
  • Renewable energy

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering


Dive into the research topics of 'Energy management system using policy based hierarchical simulation framework'. Together they form a unique fingerprint.

Cite this