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Research Output 1994 2019

  • 487 Citations
  • 12 h-Index
  • 156 Article
  • 84 Conference contribution
  • 1 Chapter
  • 1 Conference article
2006

Countermeasure for stopolicy for automobile power system

Nishimura, R., Kobayashi, K., Fujita, G. & Fukada, T., 2006, 41st International Universities Power Engineering Conference, UPEC 2006, Conference Procedings. Vol. 2. p. 744-747 4 p. 4218785

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Automobiles
Electric equipment
Hybrid vehicles
Electric power systems
Fuel consumption

Design Consideration and Verification by Experiment of Rotary Frequency Converter

Takemoto, Y., Fujita, G., Yokoyama, R., Koyanagi, K., Funabashi, T. & Chen, W., 2006 Jul 1, In : nternational Conference on Electrical Engineering (ICEE) 2006.

Research output: Contribution to journalArticle

Discussion on Operation of FACTS Device Regarding Mode Controllability

Nakao, S., Fujita, G., Shirai, G., Yokoyama, R. & Chen, W., 2006 Jul 1, In : International Conference on Electrical Engineering (ICEE) 2006.

Research output: Contribution to journalArticle

27 Citations (Scopus)

Discussion on reduction of power fluctuation by distributed generation in micro grid

Shinji, T., Sekine, T., Kashiwagi, T., Akisawa, A., Fujita, G. & Matsubara, M., 2006, In : IEEJ Transactions on Power and Energy. 126, 1

Research output: Contribution to journalArticle

Distributed power generation
Wind power
Gas turbines
Frequency stability
System stability

Electric Licenced Engineer and School Education

Fujita, G. & Nakamura, A., 2006, In : Journal of the Institute of Electrical Engineers of Japan. 126, 6, p. 382-385 4 p.

Research output: Contribution to journalArticle

Education
Engineers

Evaluation Of Microgrid Supply and Demand Stability for Different Interconnections

Uno, Y., Fujita, G., Yokoyama, R., Matubara, M., Toyoshima, T. & Tsukui, T., 2006 Nov 1, In : First International Power & Energy Conference (PECon 2006).

Research output: Contribution to journalArticle

15 Citations (Scopus)

Evaluation of micro-grid supply and demand stability for different interconnections

Uno, Y., Fujita, G., Yokoyama, R., Matubara, M., Toyoshima, T. & Tsukui, T., 2006, First International Power and Energy Conference, (PECon 2006) Proceedings. p. 611-616 6 p. 4154568

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Power generation
Distributed power generation
System stability

Experimental study on improvement of transient stability with braking resistor

Iida, S., Imamura, S., Shirai, G. & Fujita, G., 2006, In : IEEJ Transactions on Power and Energy. 126, 9, p. 894-900 7 p.

Research output: Contribution to journalArticle

Braking
Resistors
Electric industry
Synchronous generators
Voltage control
14 Citations (Scopus)

Field tests of a microgrid control system

Funabashi, T., Fujita, G., Koyanagi, K. & Yokoyama, R., 2006, 41st International Universities Power Engineering Conference, UPEC 2006, Conference Procedings. Vol. 1. p. 232-236 5 p. 4218679

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Control systems
Adaptive control systems
Fuzzy systems
Energy storage
Power generation

Simulation and Experimental Researches on Medium-Frequency Power Supply for Magnetron Sputtering

Chen, W., Rao, Y. & Fujita, G., 2006 Aug 1, In : Default journal.

Research output: Contribution to journalArticle

Simulation of battery life time evaluation for automobiles

Kobayashi, K., Nishimura, R., Fujita, G. & Fukada, T., 2006, 41st International Universities Power Engineering Conference, UPEC 2006, Conference Procedings. Vol. 2. p. 665-668 4 p. 4218769

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Automobiles
Railroad cars
Innovation
Energy management
Electric wiring

Suitable Control and Supply of Micro Grid by Installation of Battery

Matsubara, M., Fujita, G., Shinji, T., Yamakami, T., Akisawa, A., Kashiwagi, T. & Yokoyama, R., 2006 Jul 1, In : International Conference on Electrical Engineering (ICEE) 2006.

Research output: Contribution to journalArticle

Various Power Conversion Equipment for Railroad

Tada, K., Shinoda, K., Kato, Y., Fujita, G. & Hiroyama, N., 2006 Jan 1, In : Journal of the Institute of Electrical Engineers of Japan. 126, 8, p. 550-553 4 p.

Research output: Contribution to journalArticle

Railroads
2005

Application of Visualization Method for Power System

Kajihara, M., Fujita, G., Yokoyama, R., Shirai, G., Koyanagi, K. & Funabashi, T., 2005, In : IEEJ Transactions on Power and Energy. 125, 4, p. 350-356 7 p.

Research output: Contribution to journalArticle

Visualization
Reactive power
Computer systems
Electric potential
2 Citations (Scopus)

Contribution of power electronics for load frequency control of interconnected power system

Hasegawa, K., Shirai, G., Ono, T., Fujita, G., Konayagi, K., Funahashi, T. & Yokoyama, R., 2005, Proceedings of the 13th International Conference on Intelligent Systems Application to Power Systems, ISAP'05. Vol. 2005. p. 361-366 6 p. 1599290

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electric power system interconnection
Power electronics
Wind power
Carbon dioxide
Electric utilities

Damping Control of TCSC in Large-Scale Power System

Nakao, S., Fujita, G. & Shirai, G., 2005 Sep 1, In : International Universities Power Engineering Conference (UPEC 2005).

Research output: Contribution to journalArticle

Doubly-Fed Rotary Frequency Converter for Power Supply and Demand Control

Nakamura, A., Ono, T., Fujita, G., Yokoyama, R., Koyanagi, K. & Funabashi, T., 2005 Sep 1, In : International Universities Power Engineering Conference (UPEC 2005).

Research output: Contribution to journalArticle

1 Citation (Scopus)

Experimental study on rotary frequency converter

Takemoto, Y., Fujita, G., Hasegawa, K., Koyanagi, K., Funabashi, T. & Yokoyama, R., 2005, Proceedings of the 13th International Conference on Intelligent Systems Application to Power Systems, ISAP'05. Vol. 2005. p. 385-390 6 p. 1599294

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Frequency converters
Wind power
Power generation
Electric potential
Power quality

Oscillation reduction method of shaft torque which is associated with instantaneous voltage drop for private generation system

Okazaki, A., Fujita, G., Nakano, T., Koyanagi, K., Funabashi, T., Yokoyama, R. & Kakinoki, T., 2005 Jun, In : International Energy Journal. 6, 1 PART 1, p. 185-195 11 p.

Research output: Contribution to journalArticle

Torque
Torque control
Turbogenerators
Gas turbines
Voltage drop

Overview of Fuel Cell for Power System

Fujita, G., 2005, In : IEEJ Transactions on Power and Energy. 125, 11, p. 1024-1027 4 p.

Research output: Contribution to journalArticle

Fuel cells
High temperature operations
Solid oxide fuel cells (SOFC)
Thermal energy
Hydrogen
20 Citations (Scopus)

Supply and demand control of dispersed type power sources in micro grid

Matsubara, M., Fujita, G., Shinji, T., Sekine, T., Akisawa, A., Kashiwagi, T. & Yokoyama, R., 2005, Proceedings of the 13th International Conference on Intelligent Systems Application to Power Systems, ISAP'05. Vol. 2005. p. 67-72 6 p. 1599243

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Gas turbines
Thermal energy
Farms
Wind power
Energy conservation
2004

Approach of OPF Regarding Stability Evaluation and Visualization

Kajihara, M., Fujita, G., Shirai, G. & Yokoyama, R., 2004 Nov 1, In : ICPS2004 (International Conference on Power Systems 2004).

Research output: Contribution to journalArticle

Improvement of Load Frequency Control After Deregulation Using Doubly-Fed Rotary Frequency Converter

Nakamura, A., Fujita, G., Yokoyama, R., Koyanagi, K. & Funabashi, T., 2004 Nov 1, In : ICPS2004 (International Conference on Power Systems 2004).

Research output: Contribution to journalArticle

Improvement of Transient Stability Using Dynamic Braking Resistor and Shunt Capacitor for Various Fault Points

Imamura, S., Shirai, G., Yokoyama, R. & Fujita, G., 2004 Jul 1, In : ICEE 2004 Sapporo.

Research output: Contribution to journalArticle

Multi-Machine Power Systems Stabilizing Control Using Output Feedback Excitation System

Numajiri, T., Shirai, G., Yokoyama, R., Machi, S. & Fujita, G., 2004 Jan 1, In : IFAC2004.

Research output: Contribution to journalArticle

Power System Stability Improvement Using Doubly-Fed Rotary Frequency Converter

Nakamura, A., Fujita, G., Yokoyama, R., Koyanagi, K. & Funabashi, T., 2004 Jul 1, In : ICEE 2004 Sapporo.

Research output: Contribution to journalArticle

9 Citations (Scopus)

Shaft torque observer and excitation control for turbine-generator torsional oscillation

Kakinoki, T., Yokoyama, R., Fujita, G., Koyanagi, K., Funabashi, T. T. & Lee, K. Y., 2004 Mar, In : Electric Power Systems Research. 68, 3, p. 248-257 10 p.

Research output: Contribution to journalArticle

Turbogenerators
Gas turbines
Turbines
Torque
Measurement errors
9 Citations (Scopus)

Shaft Torque Observer and Excitation for Turbine - Generator Torsional Oscillation

Kakinoki, T., Yokoyama, R., Koyanagi, K., Funabashi, T., Lee, K. Y. & Fujita, G., 2004 Jan 1, In : Electric Power Systems Research. p. 248-257

Research output: Contribution to journalArticle

2003

Coordination of torsional controller for parallel turbine-generator system operation

Kakinoki, T., Yokoyama, R., Fujita, G., Koyanagi, K. & Funabashi, T., 2003, Proceedings of the Universities Power Engineering Conference. Vol. 38. p. 108-111 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Turbogenerators
Torque
Controllers
Electric potential
7 Citations (Scopus)

Dynamic characteristic of frequency control by rotary frequency converter to link wind farm and power system

Fujita, G., Ezaki, K., Nakano, T., Yokoyama, R., Koyanagi, K. & Funabashi, T., 2003, 2003 IEEE Bologna PowerTech - Conference Proceedings. Vol. 2. p. 401-407 7 p. 1304343

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Frequency converters
Farms
Wind power
Synchronous motors
Asynchronous generators

Eigenvalue Analysis in TCSC Design for Oscillation Control

Yoshihara, S., Shirai, G., Fujita, G. & Yokoyama, R., 2003 Sep 1, In : The 3rd IASTED International Conference on Power and Energy Systems.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Multi-machine power systems stabilizing control using output feedback excitation system

Numajiri, T., Shirai, G., Yokoyama, R., Machi, S. & Fujita, G., 2003 Jan 1, In : IFAC Proceedings Volumes (IFAC-PapersOnline). 36, 20, p. 169-173 5 p.

Research output: Contribution to journalConference article

Feedback
Deregulation
Circuit theory
Feedback control

Power system quality improvement using doubly-fed rotary frequency converter

Kajihara, M., Ezaki, K., Okuda, M., Fujita, G., Yokoyama, R., Koyanagi, K. & Funabashi, T., 2003, Proceedings of the IASTED International Conference, PowerCon 2003 - Special Theme: Blackout. Domijan, Jr., A. (ed.). p. 200-204 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Frequency converters
Farms
Wind power
Synchronous motors
Asynchronous generators
7 Citations (Scopus)

Shaft Torque Estimation Model for Private Generation System

Kakinoki, T., Yokoyama, R. & Fujita, G., 2003, In : IEEJ Transactions on Power and Energy. 123, 5, p. 616-623 8 p.

Research output: Contribution to journalArticle

Torque
Turbogenerators
Turbines
Control systems

Visualization of power system static and dynamic characteristic

Okuda, M., Minami, Y., Kajihara, M., Fujita, G., Shirai, G. & Yokoyama, R., 2003, Proceedings of the IASTED International Conference, PowerCon 2003 - Special Theme: Blackout. Domijan, Jr., A. (ed.). p. 33-37 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Animation
Visualization
Personal computers
Electric potential
Complex networks
2002
15 Citations (Scopus)

Automatic generation control for DC-link power system

Fujita, G., Shirai, G. & Yokoyama, R., 2002, Proceedings of the IEEE Power Engineering Society Transmission and Distribution Conference. ASIA PACIFIC ed. Vol. 3. p. 1584-1588 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electric power system interconnection
HVDC power transmission
Gain control
Power electronics
Large scale systems

Clearing Time Influence of Voltage Sags on Rotating Machine Interfaced Distributed Generator

Otoguro, H., Funabashi, T., Koyanagi, K., Fujita, G. & Yokoyama, R., 2002 Jul 1, In : ICEE 2002 JEJU.

Research output: Contribution to journalArticle

Coordination of torsional controller for turbine-generator system operation

Kakinoki, T., Yokoyama, R., Fujita, G., Koyanagi, K. & Funabashi, T., 2002, Proceedings of the Universities Power Engineering Conference. Vol. 37. p. 23-27 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Turbogenerators
Torque
Controllers
Loads (forces)
4 Citations (Scopus)

Decentralized exciter stabilizing control for multimachine power systems

Niioka, S., Yokoyama, R., Fujita, G. & Shirai, G., 2002 Apr 15, In : Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi). 139, 1, p. 35-43 9 p.

Research output: Contribution to journalArticle

Decomposition
Feedback
Electric power system interconnection
Controllers
Decentralized control
4 Citations (Scopus)

Decentralized Excitor Stabilizing Control for Multimachine Power System

Niioka, S., Yokoyama, R., Shirai, G. & Fujita, G., 2002 Jan 1, In : Electrical Engineering in Japan. 139, p. 35-43

Research output: Contribution to journalArticle

2 Citations (Scopus)

Effect of DC Power Exchange in Interconnected Power System with Wind Farm

Fujita, G., Ezaki, K., Nakano, T., Shirai, G., Yokoyama, R., Koyanagi, K. & Funabashi, T., 2002, Proceedings of the Universities Power Engineering Conference. Vol. 37. p. 795-799 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electric power system interconnection
Farms
Wind power
HVDC power transmission
3 Citations (Scopus)

Evaluation technique of turbine shaft fatigue in private-generation systems using consumption rate of shaft life cycle

Kakinoki, T., Yokoyama, R., Fujita, G., Koyanagi, K. & Funabashi, T., 2002, PowerCon 2002 - 2002 International Conference on Power System Technology, Proceedings. Institute of Electrical and Electronics Engineers Inc., Vol. 2. p. 779-783 5 p. 1047505

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Life cycle
Turbines
Torque
Fatigue of materials
Turbogenerators

Frequency Control by Rotary Frequency Converter for Wind Farm in Interconnected Power System

Fujita, G., Ezaki, K., Nakano, T., Yokoyama, R., Koyanagi, K. & Funabashi, T., 2002 Jul 1, In : ICEE 2002 JEJU.

Research output: Contribution to journalArticle

Observer-based excitation control of turbine-generator shaft oscillation

Kakinoki, T., Yokoyama, R., Fujita, G., Koyanagi, K. & Funabashi, T., 2002, Proceedings of the IEEE Power Engineering Society Transmission and Distribution Conference. Vol. 2. p. 1225-1230 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Turbogenerators
Torque
Control systems
Controllers

Observer-based Excitation Control of Turbine Shaft Oscillation

Kakiniki, T., Yokoyama, R., Fujita, G., Koyanagi, K. & Funabashi, T., 2002 Jan 1, In : IEEE Winter Meeting 2002.

Research output: Contribution to journalArticle

PSS Design for Damping of Inter-area Power Oscillations by Coherency-based Equivalent Model

Leu, C., Ishimaru, M., Yokoyama, R., Koyanagi, K., Funabashi, T. & Fujita, G., 2002 Jul 1, In : ICEE 2002 JEJU.

Research output: Contribution to journalArticle

Shaft Torque Reduction on In-house Type Generation System under Fluctuation Load

Kakinoki, T., Yokoyama, R., Fujita, G., Koyanagi, K. & Funabashi, T., 2002 Jul 1, In : ICEE 2002 JEJU.

Research output: Contribution to journalArticle

Some Topics on Protection and Control of Distributed Resources

Funabashi, T., Koyanagi, K., Fujita, G. & Yokoyama, R., 2002 Nov 1, In : MED 2002.

Research output: Contribution to journalArticle

3 Citations (Scopus)

TCSC control for longitudinal network

Fujita, G., Yoshihara, S., Shirai, G. & Yokoyama, R., 2002, Proceedings of the IEEE Power Engineering Society Transmission and Distribution Conference. ASIA PACIFIC ed. Vol. 3. p. 2023-2027 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2001

A Study on a New Rotary Frequency Converter for Wind Farm Power System

Komatsu, T., Fujimitsu, M., Koyanagi, K., Funabashi, T., Fujita, G., Furukawa, R. & Yokoyama, R., 2001 Jul 1, In : The International Conference on Electrical Engineering 2001 (ICEE2001).

Research output: Contribution to journalArticle