Learning Optimal Solutions for Extremely Fast AC Optimal Power Flow
@article{Zamzam2019LearningOS, title={Learning Optimal Solutions for Extremely Fast AC Optimal Power Flow}, author={Ahmed S. Zamzam and Kyri Baker}, journal={2020 IEEE International Conference on Communications, Control, and Computing Technologies for Smart Grids (SmartGridComm)}, year={2019}, pages={1-6} }
We develop, in this paper, a machine learning approach to optimize the real-time operation of electric power grids. In particular, we learn feasible solutions to the AC optimal power flow (OPF) problem with negligible optimality gaps. The AC OPF problem aims at identifying optimal operational conditions of the power grids that minimize power losses and/or generation costs. Due to the computational challenges with solving this nonconvex problem, many efforts have focused on linearizing or…
84 Citations
High-Fidelity Machine Learning Approximations of Large-Scale Optimal Power Flow
- Engineering, Computer ScienceArXiv
- 2020
This paper proposes an integration of deep neural networks and Lagrangian duality to capture the physical and operational constraints of the AC Optimal Power Flow and produces highly accurate approximations whose costs are within 0.01% of optimality.
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- EngineeringArXiv
- 2020
This approach constitutes the first learning-based approach that successfully respects the full non-linear AC-OPF equations and reports a 12x increase in speed and a 40% increase in robustness compared to a traditional solver.
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A neural network is trained to emulate an iterative solver in order to cheaply and approximately iterate towards the optimum, and it is shown that the proposed method can solve “difficult” AC OPF solutions that cause DC-warm started algorithms to diverge.
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- Computer Science2022 North American Power Symposium (NAPS)
- 2022
This work uses deep neural networks to learn the dual variables of the ACOPF problem and proposes a Lagrangian-based approach that can reach more globally optimal solutions with significant computational speedup even when the training data consists of mostly suboptimal solutions.
A Convex Neural Network Solver for DCOPF With Generalization Guarantees
- Computer ScienceIEEE Transactions on Control of Network Systems
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This work proposes a novel algorithm for solving DCOPF that guarantees the generalization performance, and significantly outperforms other machine learning methods.
Machine Learning-Aided Security Constrained Optimal Power Flow
- Computer Science, Engineering2020 IEEE Power & Energy Society General Meeting (PESGM)
- 2020
A learning augmented optimization approach is developed to solve the security-constrained optimal power flow (SCOPF) problem, using a multi-input multi-output random forest model to first solve network voltage magnitudes and angles of buses.
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- Computer Science2020 IEEE International Conference on Communications, Control, and Computing Technologies for Smart Grids (SmartGridComm)
- 2020
Numerical tests showcase that sensitivity-informed deep learning can enhance prediction accuracy in terms of mean square error (MSE) by 2-3 orders of magnitude at minimal computational overhead.
Model Information-Aided Deep Learning for Corrective AC Power flow
- Computer Science, Engineering2022 IEEE Power & Energy Society General Meeting (PESGM)
- 2022
A novel model information-aided deep learning approach to approximate the corrective AC optimal power flow solution with proper model information with better performances in both training time and accuracy is presented.
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