Structural Emergency Control for Power Grids

Thanh Long Vu, Spyros Chatzivasileiadis, Hsiao-Dong Chiang, Konstantin Turitsyn

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


In this paper, we introduce a structural emergency control to render post-fault dynamics of power systems from the critical fault-cleared state to a stable equilibrium point (EP).
Theoretically, this is a new control paradigm that does not rely on any continuous measurement or load shedding, as in the classical setup. Instead, the grid is made stable by intentionally changing the power network structure, and thereby, discretely relocating the EP and its stability region such that the system is consecutively driven from fault-cleared state through a set of EPs to the desired EP. The proposed control is designed by solving convex optimization problems, making it possibly scalable to large-scale power grids. In the practical side, the proposed control can be implemented by exploiting the FACTS devices that will be widely available on the grids, and hence, requiring minor investment.
Original languageEnglish
Title of host publicationProceedings of the 2017 American Control Conference
Number of pages6
Publication date2017
ISBN (Print)978-1-5090-5992-8
Publication statusPublished - 2017
Event2017 American Control Conference - Sheraton Seattle Hotel, seattle, United States
Duration: 24 May 201726 May 2017


Conference2017 American Control Conference
LocationSheraton Seattle Hotel
Country/TerritoryUnited States


  • Power grids
  • Emergency control
  • Interconnected systems
  • Synchronization


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