Noise-Immune Machine Learning and Autonomous Grid Control

Most recently, stochastic control methods such as deep reinforcement learning (DRL) have proven to be efficient and quick converging methods in providing localized grid voltage control. Because of the random dynamical characteristics of grid reactive loads and bus voltages, such stochastic control m...

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Main Authors: James Obert, Rodrigo D. Trevizan, Adrian Chavez
Format: Article
Language:English
Published: IEEE 2023-01-01
Series:IEEE Open Access Journal of Power and Energy
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10024373/
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author James Obert
Rodrigo D. Trevizan
Adrian Chavez
author_facet James Obert
Rodrigo D. Trevizan
Adrian Chavez
author_sort James Obert
collection DOAJ
description Most recently, stochastic control methods such as deep reinforcement learning (DRL) have proven to be efficient and quick converging methods in providing localized grid voltage control. Because of the random dynamical characteristics of grid reactive loads and bus voltages, such stochastic control methods are particularly useful in accurately predicting future voltage levels and in minimizing associated cost functions. Although DRL is capable of quickly inferring future voltage levels given specific voltage control actions, it is prone to high variance when the learning rate or discount factors are set for rapid convergence in the presence of bus noise. Evolutionary learning is also capable of minimizing cost function and can be leveraged for localized grid control, but it does not infer future voltage levels given specific control inputs and instead simply selects those control actions that result in the best voltage control. For this reason, evolutionary learning is better suited than DRL for voltage control in noisy grid environments. To illustrate this, using a cyber adversary to inject random noise, we compare the use of evolutionary learning and DRL in autonomous voltage control (AVC) under noisy control conditions and show that it is possible to achieve a high mean voltage control using a genetic algorithm (GA). We show that the GA additionally can provide superior AVC to DRL with comparable computational efficiency. We illustrate that the superior noise immunity properties of evolutionary learning make it a good choice for implementing AVC in noisy environments or in the presence of random cyber-attacks.
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spelling doaj.art-d01b5b79c4c24d859d71dc3ef732cbe02024-01-18T00:02:47ZengIEEEIEEE Open Access Journal of Power and Energy2687-79102023-01-011017618610.1109/OAJPE.2023.323888610024373Noise-Immune Machine Learning and Autonomous Grid ControlJames Obert0https://orcid.org/0000-0001-5066-1745Rodrigo D. Trevizan1https://orcid.org/0000-0003-2885-1213Adrian Chavez2https://orcid.org/0000-0003-3779-2462Sandia National Laboratories, Albuquerque, NM, USASandia National Laboratories, Albuquerque, NM, USASandia National Laboratories, Albuquerque, NM, USAMost recently, stochastic control methods such as deep reinforcement learning (DRL) have proven to be efficient and quick converging methods in providing localized grid voltage control. Because of the random dynamical characteristics of grid reactive loads and bus voltages, such stochastic control methods are particularly useful in accurately predicting future voltage levels and in minimizing associated cost functions. Although DRL is capable of quickly inferring future voltage levels given specific voltage control actions, it is prone to high variance when the learning rate or discount factors are set for rapid convergence in the presence of bus noise. Evolutionary learning is also capable of minimizing cost function and can be leveraged for localized grid control, but it does not infer future voltage levels given specific control inputs and instead simply selects those control actions that result in the best voltage control. For this reason, evolutionary learning is better suited than DRL for voltage control in noisy grid environments. To illustrate this, using a cyber adversary to inject random noise, we compare the use of evolutionary learning and DRL in autonomous voltage control (AVC) under noisy control conditions and show that it is possible to achieve a high mean voltage control using a genetic algorithm (GA). We show that the GA additionally can provide superior AVC to DRL with comparable computational efficiency. We illustrate that the superior noise immunity properties of evolutionary learning make it a good choice for implementing AVC in noisy environments or in the presence of random cyber-attacks.https://ieeexplore.ieee.org/document/10024373/Autonomous voltage controldeep reinforcement learningpower distribution systemsvoltage control
spellingShingle James Obert
Rodrigo D. Trevizan
Adrian Chavez
Noise-Immune Machine Learning and Autonomous Grid Control
IEEE Open Access Journal of Power and Energy
Autonomous voltage control
deep reinforcement learning
power distribution systems
voltage control
title Noise-Immune Machine Learning and Autonomous Grid Control
title_full Noise-Immune Machine Learning and Autonomous Grid Control
title_fullStr Noise-Immune Machine Learning and Autonomous Grid Control
title_full_unstemmed Noise-Immune Machine Learning and Autonomous Grid Control
title_short Noise-Immune Machine Learning and Autonomous Grid Control
title_sort noise immune machine learning and autonomous grid control
topic Autonomous voltage control
deep reinforcement learning
power distribution systems
voltage control
url https://ieeexplore.ieee.org/document/10024373/
work_keys_str_mv AT jamesobert noiseimmunemachinelearningandautonomousgridcontrol
AT rodrigodtrevizan noiseimmunemachinelearningandautonomousgridcontrol
AT adrianchavez noiseimmunemachinelearningandautonomousgridcontrol