Kaoru Koyanagi

402 total citations
37 papers, 298 citations indexed

About

Kaoru Koyanagi is a scholar working on Electrical and Electronic Engineering, Control and Systems Engineering and Energy Engineering and Power Technology. According to data from OpenAlex, Kaoru Koyanagi has authored 37 papers receiving a total of 298 indexed citations (citations by other indexed papers that have themselves been cited), including 31 papers in Electrical and Electronic Engineering, 23 papers in Control and Systems Engineering and 10 papers in Energy Engineering and Power Technology. Recurrent topics in Kaoru Koyanagi's work include Power System Optimization and Stability (13 papers), Power Systems and Renewable Energy (10 papers) and Microgrid Control and Optimization (10 papers). Kaoru Koyanagi is often cited by papers focused on Power System Optimization and Stability (13 papers), Power Systems and Renewable Energy (10 papers) and Microgrid Control and Optimization (10 papers). Kaoru Koyanagi collaborates with scholars based in Japan, United States and China. Kaoru Koyanagi's co-authors include Ryuichi Yokoyama, Toshihisa Funabashi, Junichi Arai, Kenji Iba, Tianqi Zhao, Hsiao‐Dong Chiang, Jiaojiao Deng, Goro Fujita, Kwang Y. Lee and Satoshi Nagata and has published in prestigious journals such as IEEE Transactions on Power Systems, International Journal of Electrical Power & Energy Systems and Electric Power Systems Research.

In The Last Decade

Kaoru Koyanagi

33 papers receiving 281 citations

Peers

Kaoru Koyanagi

EEE

CSE

EEPT

RESE

Selim Ay Türkiye

Remy Tiako South Africa

Masahide Hojo Japan

Jayachandra N. Sakamuri Denmark

Naotaka Okada Japan

R. Mieński Poland

C. Pink United States

SeyedJalal SeyedShenava Iran

Don Tan United States

Chowdhury Andalib-Bin-Karim Canada

Selim Ay Türkiye

Kaoru Koyanagi

281 ×1.1

EEE

198 ×1.0

CSE

26 ×0.7

EEPT

26 ×0.8

34 ×1.3

RESE

Citations per year, relative to Kaoru Koyanagi Kaoru Koyanagi (= 1×) peers Selim Ay

Countries citing papers authored by Kaoru Koyanagi

Since Specialization

Citations

This map shows the geographic impact of Kaoru Koyanagi's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Kaoru Koyanagi with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Kaoru Koyanagi more than expected).

Fields of papers citing papers by Kaoru Koyanagi

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Kaoru Koyanagi. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Kaoru Koyanagi. The network helps show where Kaoru Koyanagi may publish in the future.

Co-authorship network of co-authors of Kaoru Koyanagi

This figure shows the co-authorship network connecting the top 25 collaborators of Kaoru Koyanagi. A scholar is included among the top collaborators of Kaoru Koyanagi based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Kaoru Koyanagi. Kaoru Koyanagi is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Koyanagi, Kaoru. (2020). The Interactional Relationship between Learning Mechanisms and Other Factors (Learning Conditions/Individual Differences) in Second Language Acquisition. Impact. 2020(9). 29–31.

Koyanagi, Kaoru, et al.. (2012). A Smart Photovoltaic Generation System Integrated with Lithium-ion Capacitor Storage. International Universities Power Engineering Conference. 1–6. 8 indexed citations

Arai, Junichi, et al.. (2012). Power Smoothing by Controlling Stored Energy in Capacitor of Photovoltaic Power System. 1–5. 3 indexed citations

Koyanagi, Kaoru, et al.. (2010). Electricity Cluster-Oriented Network: A grid-independent and autonomous aggregation of micro-grids. 1–6. 13 indexed citations

Koyanagi, Kaoru, et al.. (2009). Electricity Cluster-Oriented Network with Renewable Energy Generation and Battery Energy Storage System. 2009(83). 119–124. 3 indexed citations

Koyanagi, Kaoru, et al.. (2009). Study of Load Frequency Control Model for Grid-independent Micro Grid. 2009(83). 125–130. 2 indexed citations

Ito, Toshiyuki, et al.. (2009). Power Generating Characteristic of PV Array and Its Dependency on Direction and Tilt Angle of PV Panels. Medical Entomology and Zoology. 2009(83). 55–60.

Saito, Naoki, T. Niimura, Kaoru Koyanagi, & Ryuichi Yokoyama. (2009). Quantitative Evaluations of CO2 Reduction by Microgrid with PV and Battery. 2 indexed citations

Arai, Junichi, et al.. (2008). Power electronics and its applications to renewable energy in Japan. IEEE Circuits and Systems Magazine. 8(3). 52–66. 121 indexed citations

10.

Tanabe, Takayuki, Toshihisa Funabashi, J.A. Martínez, et al.. (2007). An Effect of Fault Current Limiter to Distributed Generator Shaft Torque Increase under Voltage Sag. IEEJ Transactions on Power and Energy. 127(9). 981–986. 4 indexed citations

11.

Funabashi, Toshihisa, Goro Fujita, Kaoru Koyanagi, & Ryuichi Yokoyama. (2006). Field Tests of a Microgrid Control System. 151. 232–236. 15 indexed citations

12.

Koyanagi, Kaoru, et al.. (2005). Small-signal stability based on a synchronous generator model with field mutual-leakage reactance. Electrical Engineering in Japan. 154(2). 19–29. 1 indexed citations

13.

Koyanagi, Kaoru, et al.. (2005). Study of asynchronizing phenomena using generator model with field mutual leakage reactance. Electrical Engineering in Japan. 153(3). 31–40. 1 indexed citations

14.

Fujita, Goro, et al.. (2005). Application of Visualization Method for Power System. IEEJ Transactions on Power and Energy. 125(4). 350–356. 1 indexed citations

15.

Koyanagi, Kaoru, et al.. (2004). Study of Asynchronizing Phenomena using Generator Model with Field Mutual Leakage Reactance. IEEJ Transactions on Power and Energy. 124(6). 835–842. 5 indexed citations

16.

Koyanagi, Kaoru, et al.. (2004). Study on Transient Phenomena using Generator Model with Field Mutual Leakage Reactance<br>—Out-of-phase Synchronization—. IEEJ Transactions on Power and Energy. 124(12). 1439–1445. 2 indexed citations

17.

Koyanagi, Kaoru, et al.. (2003). Influence of Field Mutual Leakage Reactance in Generator Model on Dynamic Behavior-Study on Sudden Short Circuit, Load Rejection and PSS Effect-. IEEJ Transactions on Power and Energy. 123(12). 1495–1503. 4 indexed citations

18.

Koyanagi, Kaoru, et al.. (1999). New Analytical Method for Studies of Enhancement of Power System Dynamic Stability by Application of Adjustable-Speed Generating System. IEEJ Transactions on Power and Energy. 119(1). 73–82. 6 indexed citations

19.

Koyanagi, Kaoru, et al.. (1999). Voltage Stability Studies on Power System Which Consists of Adjustable-speed Pumped Storage Generating System and Load. IEEJ Transactions on Power and Energy. 119(7). 771–780. 1 indexed citations

20.

Kimura, Shigeo S., et al.. (1987). Effect of load characteristics on dynamic stability of power system. Electrical Engineering in Japan. 107(4). 32–41. 9 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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