Paper Conference

Proceedings of Building Simulation 2021: 17th Conference of IBPSA


Functional mock-up unit based generic threat injection framework for energy efficient and resilient buildings

Yangyang Fu, Xing Lu, Zheng O'Neill
Texas A$M University, United States of America

Abstract: The integration of different building technologies and network-based communication system makes grid- interactive efficient buildings vulnerable to passive threats such as equipment failure and active threats such as cyber-attacks. Modeling and simulation is an effective way to evaluate the influence of threats on the system. This paper proposes a generic and flex- ible threat injection framework for commonly-used building energy simulators such as Modelica to sup- port threat modeling and evaluation. This frame- work leverages the development of functional mock- up unit to provide a general modeling interface for threat injection and simulation. A numerical case study is conducted to demonstrate the capability of the framework for support single/multiple-order threat modeling and simulation. Besides the flexibil- ity of threat injection, the simulation also showed that cyber-attack that leads to short-term signal blocking has small influence on the system operation due to the resilience of the interactive control system for the heating, ventilation and air conditioning system, and a threat that lowers the global zone temperature set- point can lead to 31.5% more energy use and 60% more power demand.
Keywords: fault detection and diagnosis, Modelica, fault injection
Pages: 1641 - 1648