Transient frequency control with regional cooperation for power networks
Abstract
This paper proposes a centralized and a distributed sub-optimal control strategy to maintain in safe regions the real-time transient frequencies of a given collection of buses, and simultaneously preserve asymptotic stability of the entire network. In a receding horizon fashion, the centralized control input is obtained by iteratively solving an open-loop optimization aiming to minimize the aggregate control effort over controllers regulated on individual buses with transient frequency and stability constraints. Due to the non-convexity of the optimization, we propose a convexification technique by identifying a reference control input trajectory. We then extend the centralized control to a distributed scheme, where each subcontroller can only access the state information within a local region. Simulations on a IEEE-39 network illustrate our results.
Cite
@article{arxiv.1809.05644,
title = {Transient frequency control with regional cooperation for power networks},
author = {Yifu Zhang and Jorge Cortes},
journal= {arXiv preprint arXiv:1809.05644},
year = {2018}
}