CAI Sinan　蔡 思楠

Assistant Professor, Ph.D.
Department of Electrical and Electronic Engineering
Faculty of Engineering
Kogakuin University of Technology & Engineering

Email: cai (at) cc.kogakuin.ac.jp

Contents

About

Biography

Sinan Cai received the B.E. degree in electrical engineering from Xi’an Jiaotong University, Xi’an, China, in 2016, the M.S. degree in electrical engineering from Rensselaer Polytechnic Institute, Troy, NY, USA, in 2018, and the Ph.D. degree in electrical engineering and information systems from The University of Tokyo, Tokyo, Japan, in 2021.

From 2021 to 2023, he was with the Economic and Technology Research Institute, Shanghai Electric Power Company, State Grid Corporation of China. From 2023 to 2026, he was a Project Researcher with the Department of Electrical Engineering and Information Systems, The University of Tokyo. Since 2026, he has been an Assistant Professor with the Department of Electrical and Electronic Engineering, Kogakuin University, Tokyo, Japan. He is also a visiting researcher with the Department of Electrical Engineering and Information Systems, The University of Tokyo.

His research interests include demand response, electricity market design, renewable energy integration, battery energy storage systems, and smart grid optimization.

Dr. Cai is a member of the Institute of Electrical and Electronics Engineers (IEEE), The Institute of Electrical Engineers of Japan, and Japan Society of Energy and Resources.

His research interests include power system stability and control, demand response, smart grid technologies, and renewable energy generation technology.

Experience

Career

  • 2026/07- Visiting Researcher at the Department of Electrical Engineering and Information Systems, Graduate School of Engineering, The University of Tokyo
  • 2026/04- Assistant Professor at the Department of Electrical and Electronic Engineering, Faculty of Engineering, Kogakuin University of Technology & Engineering
  • 2023/04-2026/03 Project Researcher at the Department of Electrical Engineering and Information Systems, Graduate School of Engineering, The University of Tokyo
  • 2021/10-2023/03 Economic and Technology Research Institute of Shanghai Electric Power Company, State Grid Corporation of China

Education

  • 2021/09 Ph.D. in Department of Electrical Engineering and Information Systems, Graduate School of Engineering, The University of Tokyo
  • 2017/12 M.S. in Department of Electrical, Computer, and Systems Engineering, School of Electrical Engineering, Rensselaer Polytechnic Institute
  • 2016/06 B.E. in Institute of Power Systems and Its Resilience, School of Electrical Engineering, Xi’an Jiaotong University

Research

  • 2017/07-2017/08, Research Assistant, Rensselaer Polytechnic Institute
  • 2015/07-2015/08, Junior Research Assistant, The Chinese University of Hong Kong

Society

  • 2023/12- Institute of Electrical Engineers of Japan (IEEJ)
  • 2023/05- Institute of Electrical and Electronics Engineers (IEEE)
  • 2019/04- Japan Society of Energy and Resources (JSER エネルギー・資源学会)

Research

Journal

Journal Articles (peer-reviewed)

  • S. Cai, M. Mae, and R. Matsuahshi, “Optimal Imbalance Management for PV Self-Wheeling Schemes using Model Predictive Control.” IEEJ Transactions on Power and Energy, May. 2026. [doi]
  • S. Cai, M. Mae, and R. Matsuahshi, “Cooperative Optimal Bidding Strategy for Demand-side Responses Participating in JEPX Spot Market and Replacement Reserve Market.” IEEJ Transactions on Power and Energy, Mar. 2026. [doi]
  • S. Cai, M. Mae, and R. Matsuahshi, “Demand-Side Response Management in Electricity Markets via a Profit-Oriented Forecasting Criterion.” IEEE Access, Oct. 2025. [doi]
  • S. Cai, and R. Matsuahshi, “Optimal dispatching control of EV aggregators for load frequency control with high efficiency of EV utilization.” Applied Energy 319 (2022): 119233, Aug. 2022. [doi]
  • S. Cai, and R. Matsuahshi, “Model predictive control for EV aggregators participating in system frequency regulation market.” IEEE Access 9 (2021): 80763-80771, Jun. 2021. [doi]
  • S. Cai, and R. Matsuahshi, “A Control Method for Compensating Communication Delays in Load Frequency Control with Electric Vehicle Aggregators.” エネルギー・資源学会論文誌 41.1 (2020): 1-10, Jan. 2020. [doi]

Co-authered Journal Articles (peer-reviewed)

  • R. Hong, D. Gu, R. Mo, S. Cai, and C. Zhang, “Research on optimization of EV energy storage V2G strategy based on user preference,” in Energy Storage Science and Technology, vol. 12, no.8, pp. 2659-2667, Aug. 2023. [doi]
  • P. Chen, H. Wang, M. Guo, J. Wang, S. Cai, M. Li, K. Sun, and Y. Wang, “Decomposition Analysis of Regional Embodied Carbon Flow and Driving Factors—Taking Shanghai as an Example,” in Sustainability, vol. 14, no. 17, pp. 11109, Sept, 2022. [doi]
  • Y. Zhang, M. H. Hajiesmaili, S. Cai, M. Chen and Q. Zhu, “Peak-Aware Online Economic Dispatching for Microgrids,” in IEEE Transactions on Smart Grid, vol. 9, no. 1, pp. 323-335, Jan. 2018, doi: 10.1109/TSG.2016.2551282, Apr. 2016. [doi]

Conference

Conference Proceedings (peer-reviewed)

  • S. Cai, M. Mae and R. Matsuhashi, “Economic Assessment of Battery Energy Storage Systems Participating in the JEPX Spot Market and Frequency Containment Reserve Market,” 2026 22nd International Conference on the European Energy Market (EEM), Trondheim, Norway, 2026, pp. 1-6. [doi]

  • S. Cai, M. Mae and R. Matsuhashi, “Analysis of Photovoltaic Forecasting for Self-Wheeling Imbalance Management in Japan,” 2025 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe), Valletta, Malta, 2025, pp. 1-5. [doi]

  • S. Cai, M. Mae, R. Matsuhashi, T. Masuda, N. Ishibashi and S. Ikekawa, “Profit-Oriented Criterion of Electricity Price Forecast Considering Charging Duration of Demand-Side Responses,” 2025 21st International Conference on the European Energy Market (EEM), Lisbon, Portugal, 2025, pp. 1-6. [doi]

  • S. Cai, M. Mae and R. Matsuhashi, “Profit-Oriented Electricity Price Forecast Method for Demand Responses,” 2024 IEEE 12th International Conference on Smart Energy Grid Engineering (SEGE), Oshawa, ON, Canada, 2024, pp. 151-155. [doi]

  • S. Cai, M. Mae, and R. Matsuhashi, “A Novel Criterion of Electricity Price Forecast for Demand-Side Responses Participating in the Electricity Market,” 2024 20th International Conference on the European Energy Market (EEM), Istanbul, Turkiye, 2024, pp. 1-5. [doi]

  • S. Cai, and R. Matsuhashi, “Communication Delay Compensation by Adaptive Parameter Estimation for Electric Vehicle Aggregators Joining Load Frequency Control,” 2020 IEEE 8th International Conference on Smart Energy Grid Engineering (SEGE), Oshawa, ON, Canada, 2020, pp. 33-38. [doi]

Conference Presentations

  • Y.Shibata, S. Cai, M.Mae, and R. Matsuahshi, “CO2 Emission Reduction of University Facilities with Split Supply and Demand Response,” 第42回エネルギーシステム・経済・環境コンファレンス, 9(1), 173-175, Tokyo, Japan, Jan. 2024.
  • S. Cai, M.Mae, and R. Matsuahshi, “Profit-oriented Criterion of JEPX Spot Price Forecast for Demand Responses Considering Operation Duration,” 第42回エネルギーシステム・経済・環境コンファレンス, 9(1), 173-175, Tokyo, Japan, Jan. 2024.
  • S. Cai, M.Mae, and R. Matsuahshi, “Optimal Imbalance Management for PV Self-Wheeling Schemes Using Model Predictive Control,” 令和7年電気学会電力・エネルギー部門大会, Sept. 2025.
  • S. Cai, M.Mae, and R. Matsuahshi, “Profit-oriented Criterion of JEPX Spot Price Forecast for Demand-side Responses,” 令和7年電気学会全国大会, 6(99), 154-155, Mar. 2025.
  • T. Yoshimoto, S. Cai, M.Mae, and R. Matsuahshi, “Research on Average Price Prediction of Intraday Market of JEPX,” 第 40 回エネルギーシステム・経済・環境コンファレンス, 14(1), 370-372, Tokyo, Japan, Jan. 2024.
  • S. Cai, M.Mae, and R. Matsuahshi, “A Comparison of Electricity Market Price Forecasting Methods for Demand Responses,” 令和6年電気学会全国大会, 6(96), 154-155, Mar. 2024
  • S. Cai, and R. Matsuahshi, “A Control Method for Compensating Communication Delays in Load Frequency Control,” エネルギー・資源学会第 38 回研究発表会, 10(1), 370-372, Tokyo, Japan, Aug. 2019.
  • S. Cai, and R. Matsuahshi, “A Compensation Method for Electric Vehicle Aggregators with Communication Delays in Frequency Regulation Service,” UT-SNU Joint Seminar in Electrical Engineering, Seoul, South Korea, May 2019.

Poster Presentations

  • S. Cai, “デマンドレスポンスのための電力価格予測における収益性に基づく評価指標,” エネルギー総合学連携研究機構第3回EX研究会, Jan. 2026.
  • S. Cai, and R. Matsuhashi, “EV as Demand-sdie Response,” UTCCS Annual Workshop, Mar. 2025.

Degree Paper

Ph.D. Dissertation

  • Design of a Novel Load Frequency Control Scheme for EV Aggregators (系統負荷周波数制御に参加したEVアグリゲーターに対する新たな制御設計) [Link]

Master Thesis

  • Damping of Resonance Between Type-III Wind Turbines and a Series-Compensated Grid (III型風力タービンと弱交流系統の共振の制振方法設計)

Bachelor Thesis

  • A More Efficient Newton-Raphson Method in Rectangular Coordinates for Load Flow Calculation (直交座標系における新たな潮流計算ニュートンラフソン法 / 直角坐标系下的基于电压电流功率方程的新型牛顿拉夫逊潮流计算算法)

Book

  • 电动汽车与电力市场, “第2章 美国电动汽车与电力市场”, 中国电力出版社, 2023年2月 (Electric Vehicles and the Electricity Market, “Chapter 2: Electric Vehicles and the Electricity Market in the U.S.”, China Electric Power Press, Feb. 2023 / 電気自動車と電力市場，“第2章 米国の電気自動車と電力市場”，中国電力出版社，2023年2月)

Patent

  • 負荷周波数制御信号を推定する方法、プロセッサ、およびプログラム(特願2020-125514, 特開2022-021737) [Link]

Research Project

  • The University of Tokyo, Collaborative Research Organization for Comprehensive Energy Sciences, “Power System Innovation Realization (Social Cooperation Research with Fuji Electric Co., Ltd.)” Apr. 2023 - .
  • State Grid Shanghai Electric Power Company, Institute of Economics and Reserach, Energy Reserach Center, “Supply-Load Modeling of Electric Vehicles and Research on V2G under New Energy Policies,” Mar. 2022 - Dec. 2022.

Award

  • 国网上海市电力公司科学技术进步三等奖，“适用于疫情冲击和极端气候影响的负荷预测新技术”，2022 (The Third Technical Progress Award of Shanghai Electric Power Company, State Grid Corporation of China, “A Novel Load Forecasting Technique Considering the Impact of Epidemic and Extreme Climate”, 2022)
  • Todai Fellowship (東大フェローシップ), 2018-2021
  • Outstanding Graduate of Xi’an Jiao Tong University, 2016

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