[HTML][HTML] Operations research in optimal power flow: A guide to recent and emerging methodologies and applications

JK Skolfield, AR Escobedo - European Journal of Operational Research, 2022 - Elsevier
The fields of power system engineering and operations research are growing rapidly and
becoming increasingly entwined. This survey aims to strengthen the connections between …

A survey of relaxations and approximations of the power flow equations

DK Molzahn, IA Hiskens - Foundations and Trends® in …, 2019 - nowpublishers.com
The power flow equations relate the power injections and voltages in an electric power
system and are therefore key to many power system optimization and control problems …

Optimal power and semi-dynamic traffic flow in urban electrified transportation networks

S Lv, Z Wei, G Sun, S Chen… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
The increasing penetration of electric vehicles (EVs) and emerging dynamic wireless
charging techniques have strengthened the coupling between traffic networks and power …

Learning warm-start points for AC optimal power flow

K Baker - 2019 IEEE 29th International Workshop on Machine …, 2019 - ieeexplore.ieee.org
A large amount of data has been generated by grid operators solving AC optimal power flow
(ACOPF) throughout the years, and we explore how leveraging this data can be used to help …

An adaptive, multivariate partitioning algorithm for global optimization of nonconvex programs

H Nagarajan, M Lu, S Wang, R Bent… - Journal of Global …, 2019 - Springer
In this work, we develop an adaptive, multivariate partitioning algorithm for solving
nonconvex, Mixed-Integer Nonlinear Programs (MINLPs) with polynomial functions to global …

Global solution strategies for the network-constrained unit commitment problem with AC transmission constraints

J Liu, CD Laird, JK Scott, JP Watson… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
We propose a novel global solution algorithm for the network-constrained unit commitment
problem that incorporates a nonlinear alternating current (ac) model of the transmission …

Learning to accelerate globally optimal solutions to the AC Optimal Power Flow problem

F Cengil, H Nagarajan, R Bent, S Eksioglu… - Electric Power Systems …, 2022 - Elsevier
We propose machine learning-based (ML) methods to accelerate convergence to global
solutions for the AC Optimal Power Flow (AC-OPF) problem. In particular, for the non-convex …

A new global solver for transmission expansion planning with AC network model

M Mehrtash, Y Cao - IEEE Transactions on power systems, 2021 - ieeexplore.ieee.org
To design a reliable and secure power system, it is necessary to have enough transmission
capacity. The solution of transmission expansion planning (TEP) problem determines cost …

Tightening McCormick relaxations toward global solution of the ACOPF problem

M Bynum, A Castillo, JP Watson… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
We demonstrate that a strong upper bound on the objective of the alternating current optimal
power flow (ACOPF) problem can significantly improve the effectiveness of optimization …

Generalized convex hull pricing for the AC optimal power flow problem

M Garcia, H Nagarajan… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
We study an abstract myopic electricity market subject to general nonconvex power flow
models and convex generator models (without discrete commitment variables) in a setting …