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Publications and Presentations

Journal Articles

  • Sharara Rehimi, Hassan Bevrani, Chiyori T. Urabe, Takeyoshi Kato, "A stabilizing solution for the control system parameters tuning problem", ISA Transactions, Vol.161, pp.261-275 (2025) Link.
  • 伊勢 貴洋, 占部 千由, 加藤 丈佳, 山口 遼, 栄田 真吾, 「蓄電池のガバナフリー出力を考慮した負荷周波数制御に関する基礎検討」, 電気学会論文誌B, 145巻, 4号, pp.341-349 (2025) Link.
  • Sharara Rehimi, Hassan Bevrani, Hadi Tarimoradi, Chiyori T. Urabe, Takeyoshi Kato, and Toshiji Kato, "Robust Optimal Frequency Response Enhancement Using Energy Storage-Based Grid-Forming Converters", Energies, Vol.17, No.19, 4948 (2024) Link.
  • Sharara Rehimi, Hassan Bevrani, Chiyori T. Urabe, Takeyoshi Kato, "Grid Forming Converter Control System Synthesis: A Static OutputFeedback Approach", IEEJ Transactions on Electrical and Electronic Engineering, Vol.19, Issue 7, pp.1156–1167 (2024) Link.
  • 渡邉雅俊，占部千由，加藤丈佳，中村俊之，山本俊行，星野優子，小西充峻, 「再エネ電力によるEV充電増加のための日積算日射量に応じた充電促進時間帯の導入効果」, 電気学会論文誌B, 144巻, 6号, pp.364-375 (2024) Link.
  • 河合美咲，占部千由，加藤丈佳，宇野史睦, 「WRFによるパラメータアンサンブル予測を用いた翌日の日射量予測大外し予見」, 電気学会論文誌B, 144巻, 6号, pp.384-392 (2024) Link.
  • 荻本 和彦, 岩船 由美子, 占部 千由, 草柳 儀隆, 宮崎 輝, 安藤 希美, 入江 寛, 東 仁, 礒永 彰, 「再生可能エネルギー大量導入の下での系統慣性の低下と対策の解析・評価」, エネルギー・資源学会論文誌, 44巻, ４号, pp.171-179 (2023) Link.
  • 占部千由, Joao Gari da Silva Fonseca Junior, 竹内知哉, 今中政輝, 荻本和彦, 紺谷怜央, 林一尭, 星平祐吾, 「風力発電と火力発電の協調した調整力提供の検討」, エネルギー・資源学会論文誌, 44巻, 5号, pp.200-210 (2023) Link.
  • N. Harag, C. T. Urabe and T. Kato, "Optimal Allocation of Curtailment Levels of PV Power Output in Different Regions in Consideration of Reduction of Aggregated Fluctuations", IEEE Access, Vol.11, pp.76020-76033 (2023) Link.
  • Chiyori T. Urabe, Takashi Ikegami, Kazuhiko Ogimoto, "Mitigation of Short-Term Fluctuations in Wind Power Output in a Balancing Area on the Road Toward 100% Renewable Energy", IEEE Access, Vol. 10, pp. 111210-111220 (2022) Link.
  • 荻本和彦, 岩船由美子, 占部千由, 東仁, 礒永彰, 「電力需給モデルの限界費用によるスポット市場価格分析」, エネルギー・資源学会論文誌, 42巻, 4号, pp.185-193 (2021) Link.
  • 荻本和彦, 岩船由美子, 占部千由, 東仁, 黒沢厚志, 「2050年の電力需給における 低炭素化の可能性」, エネルギー・資源学会論文誌, 42巻, 4号, pp.204-214 (2021) Link.
  • Chiyori T. Urabe, Tetsuo Saitou, Kazuto Kataoka, Takashi Ikegami, Kazuhiko Ogimoto, "Positive Correlations between Short-Term and Average Long-Term Fluctuations in Wind Power Output", Energies, Vol.14, No.7 (2021) Link.
  • 荻本和彦, 岩船由美子, 占部千由, 東仁, 礒永彰, 「同期機の運用容量による系統慣性の特性分析」, エネルギー・資源学会論文誌, 42巻, 1号, pp.30-37 (2021) Link.
  • Chiyori T. Urabe, Gouhei Tanaka,Takahiro Oshima, Aya Maruyama, Takako Misaki, Nobuhiko Okabe, Kazuyuki Aihara, "Comparing Catch-up Vaccination Programs Based on Analysis of 2012–13 Rubella Outbreak in Kawasaki City, Japan", PLoS ONE, Vol.15, No.8, e0237312 (2020) Link.
  • T. Enomoto, T. Ikegami, C. T. Urabe, T. Saitou, K. Ogimoto, "Geographical Smoothing Effects on Wind Power Output Variation in Japan", International Journal of Smart Grid and Clean Energy, Vol.7, No.3, pp.188-194 (2018) Link.
  • Joao Gari da Silva Fonseca Junior, Yuki Nishitsuji, Yusuke Udagawa, Chiyori T. Urabe, Tetsuo Saito, Fumichika Uno, Hideaki Ohtake, Takashi Oozeki, Kazuhiko Ogimoto, "Regional Photovoltaic Power Fluctuations within Frequency Regulation Control Time Frames: A Study with High-resolution Data", Progress in Photovoltaics, Vol.26, pp.402-413 (2018) Link.
  • Takashi Ikegami, Chiyori T. Urabe, Tetsuo Saitou, and Kazuhiko Ogimoto, "Numerical Definitions of Wind Power Output Fluctuations for Power System Operations", Renewable Energy, Vol.115, pp.6-15 (2018) Link.
  • Chiyori T. Urabe, Gouhei Tanaka, Kazuyuki Aihara, Masayasu Mimura, "Parameter Scaling for Epidemic Size in a Spatial Epidemic Model with Mobile Individuals", PLoS ONE, Vol.11, No.12, e0168127 (2016) Link.
  • Y. Nagao, C. Urabe, H. Nakamura, N. Hatano, "Predicting the Characteristics of the Aetiological Agent for Kawasaki Disease from Other Paediatric Infectious Diseases in Japan", Epidemiology and Infection, Vol.144, Issue 3, pp.478-492 (2015) Link.
  • Gouhei Tanaka, Chiyori Urabe, Kazuyuki Aihara, "Random and Targeted Interventions for Epidemic Control in Metapopulation Models", Scientific Reports , Vol.4, 5522 (2014) Link.
  • Tadahisa Funaki, Hirofumi Izuhara, Masayasu Mimura, Chiyori Urabe, "A Link between Microscopic and Macroscopic Models of Self-organized Aggregation", Networks and Heterogeneous Media, Vol.7, No.4, pp.705-740 (2012) ※著者アルファベット順 Link.
  • Chiyori Urabe, Shinji Takesue, "Fracture Toughness and Maximum Stress in a Disordered Lattice System", Physical Review E, Vol.82, 16106 (2010) Link.
  • Chiyori Urabe, "Fluctuation of the Top Location and Avalanches in the Formation Process of a Sandpile", Journal of the Physical Society of Japan, Vol.76, 94401 (2007) (単著) Link.
  • Chiyori Urabe, "Dynamics of Fluctuation of the Top Location of a Sandpile", Journal of the Physical Society of Japan, Vol.74, pp.2475-2479 (2005) (単著) Link.

Books and Book Chapters

  • 国際エネルギー機関（著）, 荻本和彦, 占部千由, 戸田直樹（監訳）, 荻本和彦, 新エネルギー・産業技術総合開発機構, 小林直樹, 小林広介, 出野賢一, 今中政輝（訳）, 「System Integration of Renewables - An update on Best Practice（再生可能エネルギーのシステム統合 - ベストプラクティスの最新情報）」, 新エネルギー・産業技術総合開発機構 (2018).
  • 国際エネルギー機関（著）, 荻本和彦, 占部千由, 大橋弘, 岡本浩, 戸田直樹, 矢部彰, 吉川信明（監訳）, 荻本和彦, 新エネルギー・産業技術総合開発機構, 占部千由, 宇田川佑介, 小林直樹, 今中政（訳）, 「Re-powering Markets （電力市場のリパワリング）」, 新エネルギー・産業技術総合開発機構 (2017).
  • 合原 一幸(編), 占部 千由 , 近江 崇宏 , 阿部 力也 , 長谷川 幹雄 , 鈴木 大慈 (著), 「暮らしを変える驚きの数理工学」, ウェッジ出版 (2015).
  • 国際エネルギー機関(著), 荻本和彦, 占部千由, 岡本浩, 岩田章裕 (監訳), 「The Power of Transformation（電力の変革）」, 新エネルギー・産業技術総合開発機構 (2015).

International Conference Presentations

[IT] Invited Talk
[O] Contributed Oral Presentation
[P] Poster

  • [O] Chiyori T. Urabe, Ayaka Nakamura, Mikimasa Iwata, Takeyoshi Kato, "Battery energy storage system operation of an off-grid system for a data center, PV, and wind power plants," The 35th International Photovoltaic Science and Engineering Conference (PVSEC-35), 10-15 November, 2024, Numazu, Japan.
  • [O] Ayaka Nakamura, Chiyori T. Urabe, Takeyoshi Kato, Mikimasa Iwata, "Coordinated control method of an off-grid system for a data center, PV, and wind power plants," The 35th International Photovoltaic Science and Engineering Conference (PVSEC-35), 10-15 November, 2024, Numazu, Japan.
  • [P] HIryu Sudo, Chiyori T. Urabe, Takeyoshi Kato, "Study on requirements for hydrogen production facilities and related control methods to achieve carbon neutrality", The 35th International Photovoltaic Science and Engineering Conference (PVSEC-35),10-15 November, 2024, Numazu, Japan.
  • [O] Sharara Rehimi, Hassan Bevrani, Chiyori T. Urabe, Takeyoshi Kato, "Grid-Forming Converters Simulation and Control Using a High-Level Language: Exploring Julia's Potentials," The 3rd International Conference on Computing, IoT and Data Analytics (ICCIDA-2024), 25-26 July, 2024, Liaoning, China.
  • [O] Hiryu Sudo, Chiyori T. Urabe, and Takeyoshi Kato, "Cooperative Control Method among PV Power Plants and Water Electrolysis Hydrogen Production to Effectively Utilize PV Surplus Power," International Council of Electrical Engineering (ICEE) Conference 2024, 30 June-4 July, 2024, Kitakyushu, Japan.
  • [O] Takahiro Ise, Chiyori T. Urabe, Takeyoshi Kato, Ryo Yamaguchi, and Shingo Sakaeda, "Basic Study on Method of Load Frequency Control in Consideration of BESS Utilization for Governor-Free Control," International Council of Electrical Engineering (ICEE) Conference 2024, 30 June-4 July, 2024, Kitakyushu, Japan.
  • [O] Chiyori T. Urabe, "Mitigation of Short-term Fluctuations in Wind Power Output Utilizing Control Functions Equipped in Wind Power Turbines," International Conference on Materials and Systems for Sustainability 2023 (ICMaSS2023), 1-3 December, 2023, Nagoya, Japan.
  • [O] Takahiro Ise, Chiyori T. Urabe, Takeyoshi Kato, Ryo Yamaguchi, and Shingo Sakaeda, "Difference of Frequency Deviation and Change in SOC of Grid Battery Energy Storage System (BESS) by its Use in LFC and/or GF," International Conference on Materials and Systems for Sustainability 2023 (ICMaSS2023), 1-3 December, 2023, Nagoya, Japan.
  • [O] Shinya Atsumi, Chiyori T. Urabe, and Takeyoshi Kato, "Analysis of Characteristics of Short-Term Fluctuations in Solar Irradiance Given Forecasted Solar Irradiance Estimate Required Secondary Reserves," International Conference on Materials and Systems for Sustainability 2023 (ICMaSS2023), 1-3 December, 2023, Nagoya, Japan.
  • [O] Sharara Rehimi, Hassan Bevrani, Chiyori T. Urabe, Takeyoshi Kato, "Robust Tuning of Virtual Parameters in a Microgrid Control System," International Conference on Materials and Systems for Sustainability 2023 (ICMaSS2023), 1-3 December, 2023, Nagoya, Japan.
  • [O] Masaki Shimura, Chiyori T. Urabe, and Takeyoshi Kato, "PV allocation in each distribution area based on mesh data," International Conference on Materials and Systems for Sustainability 2023 (ICMaSS2023), 1-3 December, 2023, Nagoya, Japan.
  • [O] Masatoshi Watanabe, Chiyori T. Urabe, and Takeyoshi Kato, "Effects of Introducing Charging Promotion Time Zone According to Surplus Power to Increase EV Charging with Renewable Energy," International Conference on Materials and Systems for Sustainability 2023 (ICMaSS2023), 1-3 December, 2023, Nagoya, Japan.
  • [P] Hiryu Sudo, Chiyori T. Urabe, Takeyoshi Kato, "Proposal of PV-Hydrogen Cooperative Control Method to Utilize PV Surplus Power," International Conference on Materials and Systems for Sustainability 2023 (ICMaSS2023),1-3 December, 2023, Nagoya, Japan.
  • [P] Kotaro Takahashi, Chiyori T. Urabe, Takeyoshi Kato, Fumichika Uno, "Foreseeing of Next-day Large Forecast Error of Solar Irradiance by Parameter Ensemble Forecasting using WRF," International Conference on Materials and Systems for Sustainability 2023 (ICMaSS2023),1-3 December, 2023, Nagoya, Japan.
  • [O] Sharara Rehimi, Hassan Bevrani, Chiyori T. Urabe, Takeyoshi Kato, "Transient Response Enhancement in an AC Microgrid Using a Simple Two-Stage Controller," 10th International Conference on Power and Energy Systems Engineering (CPESE 2024), 8-10 September, 2023, Nagoya, Japan.
  • [O] Masaki Shimura, Takato Yamauchi, Chiyori T. Urabe, Takeyoshi Kato, "Trend Analysis of Land Use of Installation Site for FIT-approved Photovoltaic Power Generation," International Council on Electrical Engineering (ICEE) Conference 2023, 2-6 July, 2023, Hong Kong.
  • [O] Masatoshi Watanabe, Chiyori T. Urabe, Takeyoshi Kato, "A Study on Installation Requirement of EV Charging Facilities Depending on Charging Demand Profiles in Municipalities," International Council on Electrical Engineering (ICEE) Conference 2023, 2-6 July, 2023, Hong Kong.
  • [IT] Chiyori T. Urabe, Kazuhiko Ogimoto, "Mitigation of Short-term Fluctuations in Wind Power Output in a Balancing Area," Smart /Micro Grids Research Center (SMGRC), University of Kurdistan,Sanandaj, Iran, 23 January, 2023, Online.
  • [P] Chiyori T. Urabe, Joao Gari da Silva Fonseca Junior, Tomoya Takeuchi, Masaki Imanaka, Kazuhiko Ogimoto, "Cooperative provision of operating reserves from photovoltaic power, wind power, and thermal power," The 33rd International Photovoltaic Science and Engineering Conference (PVSEC-33),13-17 November, 2022, Nagoya, Japan.
  • [P] Joao Gari da Silva Fonseca Junior, Yuki Nishitsuji, Chiyori T. Urabe, Kazuto Kataoka, Yusuke Udagawa, Kazuhiko Ogimoto, "On the Performance of Unit Commitment Scheduling Integrated with PV Power Forecasts: A Case-study on the Kyushu Region, Japan," The 33rd International Photovoltaic Science and Engineering Conference (PVSEC-33),13-17 November, 2022, Nagoya, Japan.
  • [IT] Chiyori T. Urabe, Kazuhiko Ogimoto, "Wind Ramp Forecasts -NEDO R&D Project on Grid Integration of Variable Renewable Energy "Mitigation Technologies on Output Fluctuations of Renewable Energy Generations in Power Grid"," The International Conference on Materials and Systems for Sustainability 2019 (ICMaSS2019), 1-3 November, 2019, Nagoya, Japan.
  • [O] Chiyori. T. Urabe, Tetsuo Saitou, Kazuhiko Ogimoto, "Active Power Control for Mitigation of Very-Short-term and Short-term Fluctuation of Wind Power," 17th Wind Integration Workshop, 17-19 October, 2018, Stockholm, Sweden.
  • [O] Chiyori T. Urabe, Tetsuo Saitou, Kazuhiko Ogimoto, "Mitigation Control of Very-short-term and Short-term Fluctuations of Wind Power Output," Grand Renewable Energy 2018 International Conference and Exhibition , 17-22 June, 2018, Yokohama.
  • [O] Chiyori T. Urabe, Tetsuo Saitou, Kazuto Kataoka, Kazuhiko Ogimoto, Takashi Ikegami, "Active Power Control for Mitigation of Short-term Fluctuation of Wind Power," 16th Wind Integration Workshop, 25-27 October, 2017, Berlin, Germany.
  • [O] Chiyori T. Urabe, Tetsuo Saitou, Kazuto Kataoka, Kazuhiko Ogimoto, "Case Study of Sequential Wind Power Cut-Out Occurrences in Japan," 14th Wind Integration workshop, 20-22 November, 2015, Brussels, Belgium.
  • [P] Chiyori Urabe, "Mathematical Modelling of Self-organized Aggregation through Pheromone," International Conference on Mathematical Modeling and Applications 2014 'Crowd Dynamics',10-11 January, 2015, Tokyo, Japan.
  • [P] Chiyori Urabe, Kazuyuki Aihara, "A Scaling Law for Epidemic Size in Terms of Mobility, Infection Probability, Population Density on a Lattice System," Epidemics 4 ,19-22 November, 2013, Amsterdam, The Netherlands.
  • [P] Gouhei Tanaka, Chiyori Urabe, Kazuyuki Aihara, "Epidemic Spreading in Metapopulation Networks with Heterogeneous Infection Risks," Epidemics 4,19-22 November, 2013, Amsterdam, The Netherlands.
  • [P] T. Khatun, T. Dutta, S. Tarafdar, A. Nakahara, S. Kitsunezaki, C. Urabe, T. Ooshida, N. Ito, "Crack Formation in Droplets and Rectangular Samples of Laponite Gel Dried under an Electric Field," 1st International Workshop on Wetting and Evaporation: Droplets of Pure and Complex Fluids,17-20 June, 2013, Marseilles, France.
  • [O] Chiyori Urabe, K. Aihara, "A Scaling Law of the Final Size of Epidemic with Mobility, Infection Probability and Individual Density," Mini-Workshop at Babli, 9 January, 2013, Shantiniketan, India.
  • [O] Chiyori Urabe, Kazuyuki Aihara, "Effects of Mobility Reduction on Final Size of Infectious Diseases," Nonlinearity Workshop in Tottori 2012, 29-30 October, 2012, Tottori.
  • [P] Chiyori Urabe, Kazuyuki Aihara, "Effects of Mobility Reduction and Latent Period on the Final Size of Infectious Diseases," International Conference on Towards Mathematical Foundations of Complex Network Theory,14-16 September, 2012, Kyoto, Japan.
  • [P] Gouhei Tanaka, Chiyori Urabe, Kazuyuki Aihara, "Epidemic Spreading in Heterogeneous Metapopulation Networks Composed of High-risk and Low-risk Patches," Workshop of Epidemics on Networks: Current Trends and Challenges ,5-7 September, 2012, Girona, Spain.
  • [P] Chiyori Urabe, Kazuyuki Aihara, "Effects of Mobility Reduction on the Final Size of Infectious Diseases," The 2nd International Symposium on Innovative Mathematical Modelling,15-18 May, 2012, Tokyo, Japan.
  • [I] Chiyori Urabe, Takaki Makino, kazuyuki Aihara, "On Noisy Dynamical Systems: Logistic Maps and Quasi-periodically Forced Systems," IV Developers Workshop on the Conley-Morse Database Project, 19-22 March, 2012, Hawaii, USA.
  • [IT] Takaki Makino, Chiyori Urabe, Kazuyuki Aihara, "Applicability of Conley-Morse Graphs to Controlled and Noisy Dynamical Systems," IV Developers Workshop on the Conley-Morse Database Project, 19-22 March, 2012, Hawaii, USA.
  • [P] Chiyori Urabe, Shinji Takesue, Shougo Miyagi, "Enhancement of Fracture Toughness and Maximum Stress in a Disordered Lattice System," Complex Systems and Nonlinear Phenomena in Condensed Matter,6-7 January, 2012, Kolkata, India.
  • [P] Chiyori Urabe, Shinji Takesue, "Fracture Strength and Toughness in a Disordered Lattice System," International Symposium on Complex Systems 2011 -Perspectives on the Legacy of Torahiko Terada-,1-3 December, 2011, Tokyo, Japan.
  • [P] Chiyori Urabe, Shinji Takesue, "Enhancement of Fracture Toughness in a Disordered Lattice System," The 1st International Symposium on Innovative Mathematical Modelling,28 February-2 March, 2011, Tokyo, Japan.
  • [O] Chiyori Urabe, Shinji Takesue, "Fracture Toughness and Maximum Stress In a Disordered Lattice System," 2nd Workshop on Statistical Physics of Fracture and other Complex Systems, 13-14 September, 2010, Debrecen, Hungary.
  • [O] Chiyori Urabe, Shinji Takesue, "Enhancement of Fracture Toughness and Maximum Stress in a Disordered Lattice System," 18th European Conference on Fracture, 30 August-3 September, 2010, Dresden, Germany.
  • [P] Chiyori Urabe, Shinji Takesue, "Can Mixing Soft and Hard Components Strengthen Materials?," Japan-Taiwan Joint Workshop for Graduate Students in Applied Mathematics,28 February-1 March, 2010, Taipei, Taiwan.
  • [P] C. Urabe, T. Ogawa, A. Nakatani, "Molecular Dynamics Study of Ductile Fracture near Crack Tip Field in Nanocrystalline Aluminum," International Symposium on Giant Straining Process for Advanced Materials (GSAM-2008),21-24 November, 2008, Fukuoka, Japan.
  • [P] Chiyori Urabe, "Dynamics of Fluctuation of the Top Location of a Sandpile," Nonequilibrium Physics in Material and Biological Science,5-7 October, 2005, Kyoto, Japan.
  • [P] Chiyori Urabe, "Fluctuation of the Top Position in the Dynamics of Sandpile," 22nd International Conference on Statistical Physics,4-9 July, 2004, Bangalore, India.
  • [P] Chiyori Urabe, "Fluctuation of the Location of the Top in the Dynamics of Sandpile," International Symposium on Dynamics of Complex Fluids,8-10 March, 2004, Kyoto, Japan.