Conference paper
Structural Emergency Control for Power Grids
Massachusetts Institute of Technology1
Department of Electrical Engineering, Technical University of Denmark2
Center for Electric Power and Energy, Centers, Technical University of Denmark3
Energy Analytics and Markets, Center for Electric Power and Energy, Centers, Technical University of Denmark4
Cornell University5
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.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2017 |
| Pages: | 3418-3423 |
| Proceedings: | 2017 American Control Conference |
| ISBN: | 150904583X , 150904583x , 150905992X , 150905992x , 9781509045839 , 9781509059928 , 1509059946 and 9781509059942 |
| ISSN: | 23785861 and 07431619 |
| Types: | Conference paper |
| DOI: | 10.23919/ACC.2017.7963475 |
| ORCIDs: | Chatzivasileiadis, Spyros |
Convex functions FACTS devices Lyapunov methods Mathematical model Power system dynamics Power system stability Power transmission lines convex optimization problems convex programming critical fault-cleared state emergency control equilibrium point interconnected systems post-fault dynamics power grids power network structure power system control power system faults power system stability power systems stability region structural emergency control synchronization
