Papers - AOKI Mutsumi
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特高系統における機械学習を活用した電圧・無効電力制御手法の提案
電気学会論文誌B 144 ( 09 ) 474 - 483 2024.09
Language：Japanese Publishing type：Research paper (scientific journal)
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A Voltage and Reactive Power Control Method Based on Sequential Updated Control Targets Considering Machine Learning Enabled Customer Voltage Estimation
Ryogo Ito, Fumiya Matsushima, Mutsumi Aoki, Katsuhisa Ueda, Suresh Chand Verma, Shinji Nakatsui
9th International Conference on Sustainable Technology and Engineering (i-COSTE2023) 2023.12
Language：English Publishing type：Research paper (international conference proceedings)
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Multi-Timescale Voltage and Reactive Power Control Method Combining Fast PV PCS and Slow Transformer Tap Response using Deep Reinforcement Learning
Fumiya Matsushima, Ryogo Ito, Mutsumi Aoki, Katsuhisa Ueda, Suresh Chand Verma, Shinji Nakatsui
9th International Conference on Sustainable Technology and Engineering (i-COSTE2023) 2023.12
Language：English Publishing type：Research paper (international conference proceedings)
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事故電流の逆相分を用いた長距離配電線対応短絡保護システム
平山 晃己, 青木 睦, 天雨 徹, 大谷 哲夫, 小澤 辰哉, 對馬 宏介
電気学会論文誌B 143 ( 06 ) 389 - 395 2023.06
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配電線スリム化を目的としたダイナミックレーティング適用時の蓄電池設備容量評価
石田 匠輝, 中村 勇太, 青木 睦, 彦山 和久, 野々山 公亮
電気学会論文誌B 143 ( 06 ) 379 - 388 2023.06
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配電系統の対地静電容量増加を考慮した配電線地絡保護システム Reviewed
林田 弘太郎, 青木 睦, 天雨 徹, 大谷 哲夫, 小澤 辰哉, 對馬 宏介
電気学会論文誌B 143 ( 6 ) 338 - 347 2023.06
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マイクログリッドシステムの運転におけるMILPとPSOを用いたハイブリッド手法の実用性評価
棚橋 優, 小林 浩, 中村 勇太, 青木 睦
電気学会論文誌D 142 ( 12 ) 2022.12
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実系統に基づく大口需要家自家用発電設備モデルの過渡安定性に関するシミュレーション Reviewed
前 享志郎，青木 睦
電気学会論文誌Ｂ 142 ( 7 ) 327 - 333 2022.07
Authorship：Corresponding author
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Novel Optimization Method Hybridized by MILP and PSO for Operation Planning in Microgrid System Reviewed
Yu Tanahashi, Hiroshi Kobayashi, Yuta Nakamura, Mutsumi Aoki
The International Power Electronics Conference (IPEC-Himeji 2022 - ECCE Asia -) 2022.05
Authorship：Corresponding author
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PSOによる短期演算と中期演算を組み合わせたマイクログリッド最適運転計画作成手法 Reviewed
棚橋 優, 小林 浩, 中村 勇太, 青木 睦
電気学会論文誌Ｃ 141 ( 12 ) 1397 - 1404 2021.12
Authorship：Corresponding author
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Ito Kohei, Aoki Mutsumi, Amau Toru, Otani Tetsuo, Ozawa Tatsuya, Tsushima Kosuke
IEEJ Transactions on Power and Energy 141 ( 7 ) 528 - 534 2021.07
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Institute of Electrical Engineers of Japan
It is desirable to operate power equipment such as transformers considering improvement of utilization rate and the lifetime. It is considered that the application of dynamic rating to improve the utilization rate. However, the equipment is increasingly used with high load due to the dynamic rating, so it is necessary to understand the lifetime of the equipment and operate it. In order to implement the current capacity calculation formula and the average degree of polymerization calculation formula using for transformer lifetime estimation, it is required dedicated devices to perform complicated calculations for each formula. Therefore, this paper considers creating formulas with only four arithmetic operations for the current capacity calculation formula and the average degree of polymerization calculation formula, and implementing them in the same device. Also, it is required overload protection relay to perform dynamic rating, in order to prevent equipment failure. So, this paper shows the implementation of three functions, dynamic rating, overload protection function, and the average degree of polymerization calculation formula, for one IED that can perform simple calculations.
Other Link： http://id.ndl.go.jp/bib/031604905
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The Implementation of Dynamic Rating and Transmission Line Protection Function in IED Reviewed
Ito Kohei, Aoki Mutsumi, Amau Toru, Otani Tetsuo, Ozawa Tatsuya, Kojima Kazuhiro
IEEJ Transactions on Power and Energy 140 ( 11 ) 803 - 811 2020.11
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Institute of Electrical Engineers of Japan
The idea of dynamic rating system to maximize the use of existing facilities is effective for solving the lack of transmission line vacant capacity that prevents a large amount of dispersed generations from connecting power grids. Such system requires a new arithmetic device for implementing the complicated formula to calculate the current capacity together with the overload protection device for transmission line. This paper considers the implementation of a dynamic rating system and a transmission line overload protection using one Intelligent Electronic Device (IED) and contrives a formula for calculating the current capacity that can be implemented in IED. It also shows the result of implementation of the proposed capacity calculation formula and transmission line protection.
Other Link： http://id.ndl.go.jp/bib/030731727
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特高系統における回帰木を用いた電圧推定手法に関する検討 Reviewed
説田 貴旭, 青木 睦, 大堀 良介, Suresh Chand Verma, 下野 晃裕
電気学会論文誌B 140 ( 6 ) 2020.06
Language：Japanese Publishing type：Research paper (scientific journal)
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Voltage unbalance suppression method in distribution line by constantly installing capacitor Reviewed
Yu Fujita, Hiroshi Kobayashi, Mutsumi Aoki, Hirokazu Uenishi
IEEJ Transactions on Electrical and Electronic Engineering 2020.05
Language：English Publishing type：Research paper (scientific journal)
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A study on frequency adjustment mechanism for wind turbine generation systems Reviewed International journal
Ryo Yawata, Hirotaka Takano, Shunya Tanaka, Hisao Taoka, Takashi Yasuhara, Yan Qingyuan, Mutsumi Aoki
Journal of International Council on Electrical Engineering 2020.01
Language：English Publishing type：Research paper (scientific journal)
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A Study on Allocation Method of Supply-demand Balancing Capability considering VPP deployment Reviewed
Miki Someha, Mutsumi Aoki, Suresh Chand Verma
IEEE International Conference on DC Microgrids 2019.05
Language：English Publishing type：Research paper (international conference proceedings)
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Suppression of Voltage Fluctuation by Utilizing Consumer-Side Energy Storage Devices in PV Connected Distribution System Reviewed International journal
Yan Qingyuan, Mutsumi Aoki
10th IFAC Symposium on Control of Power and Energy Systems 2018.09
Language：English Publishing type：Research paper (international conference proceedings)
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Impact on amount of PV in distribution system by suppressing unbalanced voltage using single-phase static capacitors Reviewed
Yukimasa Ikai, Mutsumi Aoki, Yu Fujita, Hiroshi Kobayashi, Mika Oguri, Takukan Yamada
IEEJ Transactions on Power and Energy 138 ( 2 ) 131 - 139 2018
Language：Japanese Publishing type：Research paper (international conference proceedings) Publisher：Institute of Electrical Engineers of Japan
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Development and evaluation of automatic power factor controller with simplified control logic Reviewed
Fujita Yu, Kobayashi Hiroshi, Aoki Mutsumi
The Transactions of the Institute of Electrical Installation Engineers of Japan 37 ( 2 ) 9 - 16 2017.12
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Institute of Electrical Installation Engineers of Japan
Many of the high-voltage consumers have installed the static capacitors (SC) for power factor improvement. However, in many cases SC is always input to distribution systems for cost reduction. As a result, a power factor of distribution line becomes leads. It has led to the voltage rise at distribution line by Ferranti phenomenon. As a countermeasure, the installation of automatic power factor controller (APFC) that controls SC automatically is highly effective. In order to introduce of APFC to the high voltage customers，the authors have developed the APFC controlled by current for cost reduction. However, since the proposed control logic for controlling the SC using current is complicated, we improved control logic of APFC controlled by current. In this paper, we propose a new control logic of APFC controlled by current . And, we evaluate controlling of SC by the new APFC installed by a consumer.
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A Study of Protection System for Looped Distribution System Using general purpose protection relay Reviewed International journal
Shinya Fujita, Mutsumi Aoki, Toru Amau, Kazuhiro Kojima, Tetsuo Otani, Tatsuya Ozawa
7th International Conference on Advanced Power System Automation and Protection 2017.10
Language：English Publishing type：Research paper (international conference proceedings)
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