Research Interests

• AI (Graph Neural Networks) + Optimization (Graph-based modeling) + High Performance Computing for Large-Scale Energy Systems

• Renewable Energy Forecasting

• AI for Optimization in (Renewable Energy-Integrated) Power Systems

  • e,g., Security-constrained OPF, Unit Commitment, Optimal Transmission Switching 

Publications

International Journal Papers

• Power System Decision Making in the Age of Deep Learning: A Comprehensive Review

Y. Lim, M. Son, K. Park, M. Kim, K.  Song, H. Lee and H. Kim,  Energies, Sep. 2025 (2024 IF = 3.2) 

• Locational Scenario-based Pricing in a Bilateral Distribution Energy Market under Uncertainty

H.T. Doan, M. Kim, K. Song, and H. Kim,  Applied Energy, pp. 1-14, Aug. 2025 (2024 IF = 11.0, JCR Top 6.6%)

• Graph-based Large Scale Probabilistic PV Power Forecasting Insensitive to Space-Time Missing Data

K. Song, M. Kim, and H. Kim, IEEE Transactions on Sustainable Energy, pp. 1-14, Aug. 2024 (2023 IF = 8.6, JCR Top 5%)

• Convolutional Autoencoder-Based Anomaly Detection for Photovoltaic Power Forecasting of Virtual Power Plants

 T. Park, K. Song, J. Jeong, and H. Kim,  Energies, Vol.16, No. 14, pp. 1-20, Jul. 2023 (2022 IF = 3.2)

• DTTrans: PV Power Forecasting Using Delaunay Triangulation and TransGRU

K. Song, J. Jeong, J. H. Moon, S. C. Kwon, and H. Kim,  Sensors, Vol. 23, No. 1, pp. 1-18, Dec. 2022 (2021 IF = 3.847)

[Code] 

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• GraphOPF...

K. Song, K. Park,  S. Choi, S. Kim, T. Kim, Y. Choi, S. Min,  and H. Kim, submitted to the TPWRS

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• ExpressOPF...

H.T. Doan, K. Song, S. Shin, K. Kim, and H. Kim, to be submitted to IEEE TPWRS (on-going) 

• DRL Home ESS ... 

M. Son, K. Song, M. Kim, Y. Lim and H. Kim, submitted to ...  (on-going)

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• Data-Driven network control for PF, OPF based on the physics-aware GNN (e.g., co) 

• Comparative Analysis of Constructing Optimal Power Flow Foundation Models

• FedDT w/ DP...

International Conference Papers

• AnyCast: Efficient Graph Learning for Large-Scale PV Power Forecasting with Extreme Missing Data

K. Song, M. Kim, and H. Kim,  2024 IEEE International Conference on Communications, Control, and Computing Technologies for Smart Grids (SmartGridComm)

• Alternative Learning Architecture for Solving AC-OPF via Supervised Relaxation and Cross Encoder

H.T. Doan, K. Song,  K. Kim, and H. Kim, 2025 NeurIPS Workshop on GPU-Accelerated and Scalable Optimization (ScaleOPT) (accepted)

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• GNN OPF Benchmark...

H. Jin, K. Song, and K. Kim, to be submitted to ...  (on-going)

Projects 

• National Power Grid Optimization with Hardware-Accelerated Physics-Informed Neural Network (PINN) 

Sogang University, funded by National Research Foundation of Korea, Principal Investigator (2025.06 ~)

• Study on AC-OPF: AI for Optimization (or Learning to Optimize) Approach 

Sogang University, funded by KPX, Principal Investigator (2024.05 ~ 2025.05)

• HEFTcom24 Competition 

Sogang University (2024.02 ~ 2024.05)

→ Participated in this competition as "NICE_Forecast"  team and got 11th/3rd place in the total and student teams.

If you want to check our methods,  please see our code (on-going).

• Scheduling Charge/discharge Control of the Home Energy Storage System

Sogang University, funded by LG Electronics, Principal Investigator (2023.04 ~ 2023.10)

• Pioneering Technological Advancements for Enabling Home Energy Management Systems

Sogang University, led by ETRI & funded by KETEP, Principal Investigator (2022.06 ~ 2023.06)

• Smart City Energy Data Prediction / Analysis and Visualization

Sogang University, funded by KEPCO KEPRI, Principal Investigator (2021.03 ~ 2022.12)

Patents 

• 대규모 데이터 결손 보완을 고려한 발전 예측 시스템 및 방법

Sogang University

• 에너지 프라이버시 보호를 위한 분할학습 기반 태양광 예측 모델 

Sogang University

•  Method and System for Predicting Renewable Energy Power Generation using Data from Multiple Weather Stations

KR 1020220157702, 2022.11.22 (Sogang University & KEPCO KEPRI)

Awards 

• The Grand Prize (최우수상): Sogang University Best Paper Award

Sogang University, 2024

• Excellence award (우수상): Qualcomm & Sogang University Best Paper Award

Sogang University, 2023

• Encouragement award (장려상): Qualcomm & Sogang University Best Paper Award

Sogang University, 2022

• Encouragement award (장려상): Result Performance of Tech University of Korea LINC+

Tech University of Korea, 2020.11

• WorldClass Enterprise Association chairman's award (월드클래스기업협회장 수상): TUK 20th Industrial Technology Exhibition

Tech University of Korea, 2020.10

[Project]

• The First Prize (최우수상): CP-CoP (Creative Project-Community of Practice) Competition

Tech University of Korea, 2019.11

[Project]

Reviewer Activities 

• IEEE Transactions on Sustainable Energy