Encryption-based coordinated volt/var control for distribution networks with multi-microgrids
This paper proposes a data-driven coordinated volt/var control (VVC) strategy for active distribution networks (ADN) with multi-microgrids, which can achieve online economic and secure operations under false data injection attacks (FDIA). Based on voltage and power measurements, the microgrid centra...
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sg-ntu-dr.10356-1727202023-12-18T04:08:18Z Encryption-based coordinated volt/var control for distribution networks with multi-microgrids Sun, Xianzhuo Qiu, Jing Ma, Yuan Tao, Yuechuan Zhao, Junhua Dong, Zhao Yang School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Convolution Neural Networks Encrypted Communication This paper proposes a data-driven coordinated volt/var control (VVC) strategy for active distribution networks (ADN) with multi-microgrids, which can achieve online economic and secure operations under false data injection attacks (FDIA). Based on voltage and power measurements, the microgrid central controller (MGCC) obtains optimal reactive power supports at the point of common coupling (PCC) and sends them to the distribution system operator (DSO). The MGCC is formulated with a convolution neural network (CNN) to emulate the optimal behaviors in microgrids (MGs), which can reduce computational burdens and facilitate its online application. The DSO then performs centralized optimization to dispatch VVC devices and update voltages at PCC. A voltage sensitivity-based reactive power adjustment method is also developed to simplify the iterative optimization process between ADN and MGs without deteriorating the VVC performance in each MG. Finally, data integrity and privacy are protected through an encrypted communication process against FDIA. The GGH (Goldreich-Goldwasser-Halevi) encryption algorithm directly prevents attackers from accessing the original transmitted data, while the RSA (Rivest-Shamir-Adleman) digital signature algorithm helps detect malicious tampering with the ciphertext during communication. Numerical simulations on a modified IEEE 33-bus ADN with three EU 16-bus MGs verify the effectiveness of the proposed method in mitigating voltage violations, reducing voltage regulation costs and protecting data security. This work was supported in part by the ARC Research Hub under Grant IH180100020, in part by the ARC Training Centre under Grant IC200100023, in part by the ARC linkage project under Grant LP200100056, in part by the ARC under Grant DP220103881, in part by the Shenzhen Institute of Artificial Intelligence and Robotics for Society (AIRS), in part by the National Natural Science Foundation of China through Key Program under Grants 71931003 and 72061147004, and in part by the National Natural Science Foundation of China under Grant 72171206. 2023-12-18T04:08:18Z 2023-12-18T04:08:18Z 2023 Journal Article Sun, X., Qiu, J., Ma, Y., Tao, Y., Zhao, J. & Dong, Z. Y. (2023). Encryption-based coordinated volt/var control for distribution networks with multi-microgrids. IEEE Transactions On Power Systems, 38(6), 5909-5921. https://dx.doi.org/10.1109/TPWRS.2022.3230363 0885-8950 https://hdl.handle.net/10356/172720 10.1109/TPWRS.2022.3230363 2-s2.0-85146245636 6 38 5909 5921 en IEEE Transactions on Power Systems © 2022 IEEE. All rights reserved. |
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Engineering::Electrical and electronic engineering Convolution Neural Networks Encrypted Communication Sun, Xianzhuo Qiu, Jing Ma, Yuan Tao, Yuechuan Zhao, Junhua Dong, Zhao Yang Encryption-based coordinated volt/var control for distribution networks with multi-microgrids |
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This paper proposes a data-driven coordinated volt/var control (VVC) strategy for active distribution networks (ADN) with multi-microgrids, which can achieve online economic and secure operations under false data injection attacks (FDIA). Based on voltage and power measurements, the microgrid central controller (MGCC) obtains optimal reactive power supports at the point of common coupling (PCC) and sends them to the distribution system operator (DSO). The MGCC is formulated with a convolution neural network (CNN) to emulate the optimal behaviors in microgrids (MGs), which can reduce computational burdens and facilitate its online application. The DSO then performs centralized optimization to dispatch VVC devices and update voltages at PCC. A voltage sensitivity-based reactive power adjustment method is also developed to simplify the iterative optimization process between ADN and MGs without deteriorating the VVC performance in each MG. Finally, data integrity and privacy are protected through an encrypted communication process against FDIA. The GGH (Goldreich-Goldwasser-Halevi) encryption algorithm directly prevents attackers from accessing the original transmitted data, while the RSA (Rivest-Shamir-Adleman) digital signature algorithm helps detect malicious tampering with the ciphertext during communication. Numerical simulations on a modified IEEE 33-bus ADN with three EU 16-bus MGs verify the effectiveness of the proposed method in mitigating voltage violations, reducing voltage regulation costs and protecting data security. |
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School of Electrical and Electronic Engineering |
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School of Electrical and Electronic Engineering Sun, Xianzhuo Qiu, Jing Ma, Yuan Tao, Yuechuan Zhao, Junhua Dong, Zhao Yang |
format |
Article |
author |
Sun, Xianzhuo Qiu, Jing Ma, Yuan Tao, Yuechuan Zhao, Junhua Dong, Zhao Yang |
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Sun, Xianzhuo |
title |
Encryption-based coordinated volt/var control for distribution networks with multi-microgrids |
title_short |
Encryption-based coordinated volt/var control for distribution networks with multi-microgrids |
title_full |
Encryption-based coordinated volt/var control for distribution networks with multi-microgrids |
title_fullStr |
Encryption-based coordinated volt/var control for distribution networks with multi-microgrids |
title_full_unstemmed |
Encryption-based coordinated volt/var control for distribution networks with multi-microgrids |
title_sort |
encryption-based coordinated volt/var control for distribution networks with multi-microgrids |
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2023 |
url |
https://hdl.handle.net/10356/172720 |
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1787136533207187456 |