Wangkun Xu
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  • Learning-augmented decision-making
  • Efficient power-system optimisation
  • Digitalisation and cyber–physical security
  • Policy and governance
  • Broader machine-learning research

Research

Publications and research themes in machine learning, optimisation, and power systems.

My research lies at the intersection of machine learning, optimisation, and system dynamics, with a focus on efficient, robust, and secure power-system operation and control under uncertainty and high penetrations of renewable energy.

Learning-augmented decision-making

This theme brings prediction and operational decision-making into a single framework, including learning-augmented optimisation, decision-focused learning, machine unlearning, and data-driven stability constraints.

DiffAPQP

Structured Differentiable Optimization for Efficient Decision-focused Learning in Power Systems

2026

Wangkun Xu and Fei Teng

arXiv preprint arXiv:2608.04189

Preprint Code · Power systems Code · DiffAPQP
ICNN

Input Convex Neural Network as a Surrogate in Stability-Constrained Optimization for IBR-Dominated Power Systems

2026

Wangkun Xu, Hongyang Jia, Yi Wang, Ning Zhang, and Fei Teng

IEEE Transactions on Power Systems

Paper Preprint Code
LAPSO

Learning-Augmented Power System Operations: A Unified Optimization View

2026

Wangkun Xu, Zhongda Chu, and Fei Teng

IEEE Transactions on Power Systems

Paper Preprint Code Software
DFL

Decision-Focused Learning for Power System Decision-Making Under Uncertainty

2026

Haipeng Zhang, Ran Li, Qintao Du, Junyi Tao, Salvador Pineda, Georges Kariniotakis, Simon Camal, Claire Bizon Monroc, Mingyang Sun, Can Wan, Wangkun Xu, and Fei Teng

IEEE Transactions on Power Systems

Paper
STAB

On the Incorporation of Stability Constraints into Sequential Operational Scheduling

2025

Wangkun Xu, Zhongda Chu, Florin Capitanescu, and Fei Teng

2025 IEEE Power & Energy Society General Meeting (PESGM), 1–5

Paper Preprint
UNLRN

Task-Aware Machine Unlearning and Its Application in Load Forecasting

2024

Wangkun Xu and Fei Teng

IEEE Transactions on Power Systems

Paper Preprint Code Software
E2E-AT

E2E-AT: A Unified Framework for Tackling Uncertainty in Task-Aware End-to-End Learning

2024

Wangkun Xu, Jianhong Wang, and Fei Teng

Proceedings of the AAAI Conference on Artificial Intelligence, 38(14), 16220–16227

Paper Preprint Code Software
FWD-AD

Efficient Sampling for Data-Driven Frequency Stability Constraint via Forward-Mode Automatic Differentiation

2024

Wangkun Xu, Qian Chen, Pudong Ge, Zhongda Chu, and Fei Teng

2024 IEEE PES Innovative Smart Grid Technologies Europe (ISGT EUROPE), 1–5

Paper Preprint Code Software
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Efficient power-system optimisation

New computational approaches for difficult scheduling and operational problems, including quantum optimisation.

QUBIT

Qubit-Efficient Quantum Annealing for Stochastic Unit Commitment

2026

Wei Hong, Wangkun Xu*, and Fei Teng

* Corresponding author

IEEE Transactions on Power Systems

Paper Preprint
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Digitalisation and cyber–physical security

Methods that combine data, physical models, and robust control to protect increasingly digitalised power systems.

DRONE

Drone-Assisted Cyber-Physical Stability-Constrained Resilience Enhancement for Postcontingency Distribution Networks

2026

Pudong Ge, Wangkun Xu, and Fei Teng

IEEE Transactions on Industrial Informatics, 22(5), 4258–4269

Paper
AVAIL

Availability Adversarial Attack and Countermeasures for Deep Learning-based Load Forecasting

2023

Wangkun Xu and Fei Teng

2023 IEEE Belgrade PowerTech

Paper Preprint Code
RISK

Cyber–Physical Risk Assessment for False Data Injection Attacks Considering Moving Target Defences

2023

Martin Higgins, Wangkun Xu, Fei Teng, and Thomas Parisini

International Journal of Information Security, 22(3), 579–589

Paper Preprint
PHY-MTD

Physical Verification of Data-Driven Cyberattack Detector in Power System: An MTD Approach

2022

Wangkun Xu, Imad M. Jaimoukha, and Fei Teng

2022 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe), 1–5

Paper
DDET

Blending Data and Physics Against False Data Injection Attack: An Event-Triggered Moving Target Defence Approach

2022

Wangkun Xu, Martin Higgins, Jianhong Wang, Imad M. Jaimoukha, and Fei Teng

IEEE Transactions on Smart Grid, 14(4), 3176–3188

Paper Preprint Code Software
MTD

Robust Moving Target Defence Against False Data Injection Attacks in Power Grids

2022

Wangkun Xu, Imad M. Jaimoukha, and Fei Teng

IEEE Transactions on Information Forensics and Security, 18, 29–40

Paper Preprint Code Software
DIGI

Transition to Digitalized Paradigms for Security Control and Decentralized Electricity Market

2022

Federica Bellizio, Wangkun Xu, Dawei Qiu, Yujian Ye, Dimitrios Papadaskalopoulos, Jochen L. Cremer, Fei Teng, and Goran Strbac

Proceedings of the IEEE, 111(7), 744–761

Paper Preprint
I-A

A Deep Learning based Detection Method for Combined Integrity-Availability Cyber Attacks in Power System

2020

Wangkun Xu and Fei Teng

arXiv preprint arXiv:2011.01816

Preprint
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Policy and governance

Research on data governance, regulation, and the policy frameworks surrounding digital and connected infrastructure.

SOLAR

Assessing Land Eligibility for Solar Photovoltaic Deployment in the UK

2025

A. Pedraza, E. Geirsson, F. Adams, M. Ahmad, N. Dawda, Wangkun Xu, Y. Yu, and Daphné Tuncer

2025 60th International Universities Power Engineering Conference (UPEC), 1–6

Paper
AIR

Poster: Unveiling Urban Emissions from Bangkok Air Monitoring

2024

Teeratat Bunsantrakul, Karl M. Christiaens, Adriana M. Duran Pabon, Bomi I. Owoka, Maria S. Velasco Garcia, Wangkun Xu, and Daphné Tuncer

Proceedings of the 2024 ACM Internet Measurement Conference, 749–750

Paper
IoT

Assessing the Efficacy of IoT-based Forest Fire Detection: A Practical Use Case

2024

Belcher Anthony, Miguel A. Esteva, Anthea Lam, Rizki Ramadhani, Achmad Rayhan, Wangkun Xu, and Daphné Tuncer

arXiv preprint arXiv:2407.09117

Preprint
DATA

A Comparative Perspective of Data Regulation Frameworks and Their Implications for Connected Vehicles

2022

Laura Barrera Cano, Sidra Raza, Blessing Sekibo, Angeliki Siafaras, Quinn Wolf, Ziqiao Yin, Wangkun Xu, and Daphné Tuncer

Proceedings of the ACM SIGCOMM Joint Workshops on TAURIN and BGI, 6–11

Paper
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Broader machine-learning research

Selected work in uncertainty quantification, deep-learning optimisation, and multi-agent reinforcement learning.

FLOW-PCE

Flow-based Polynomial Chaos Expansion for Uncertainty Quantification in Power System Dynamic Simulation

2026

Le Fang, Wangkun Xu*, and Fei Teng

* Corresponding author

arXiv preprint arXiv:2603.20472

Preprint
G-N

Exact, Tractable Gauss–Newton Optimization in Deep Reversible Architectures Reveals Poor Generalization

2024

Davide Buffelli, Jamie McGowan, Wangkun Xu, Alexandru Cioba, Da-shan Shiu, Guillaume Hennequin, and Alberto Bernacchia

Advances in Neural Information Processing Systems, 37, 133541–133570

Paper Preprint
MARL

Multi-Agent Reinforcement Learning for Active Voltage Control on Power Distribution Networks

2021

Jianhong Wang, Wangkun Xu (co-first author), Yunjie Gu, Wenbin Song, and Tim C. Green

Advances in Neural Information Processing Systems, 34, 3271–3284

Paper Preprint Code Testbeds Software
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