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研究成果 1994 2019

  • 512 引用
  • 12 h指数
  • 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. 巻 2. p. 744-747 4 p. 4218785

研究成果: Conference 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 7 1, : : nternational Conference on Electrical Engineering (ICEE) 2006.

研究成果: Article

27 引用 (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, : : IEEJ Transactions on Power and Energy. 126, 1

研究成果: Article

Distributed power generation
Wind power
Gas turbines
Frequency stability
System stability
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 11 1, : : First International Power & Energy Conference (PECon 2006).

研究成果: Article

16 引用 (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

研究成果: Conference 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, : : IEEJ Transactions on Power and Energy. 126, 9, p. 894-900 7 p.

研究成果: Article

Braking
Resistors
Electric industry
Synchronous generators
Voltage control
14 引用 (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. 巻 1. p. 232-236 5 p. 4218679

研究成果: Conference contribution

Control systems
Adaptive control systems
Fuzzy systems
Energy storage
Power generation

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. 巻 2. p. 665-668 4 p. 4218769

研究成果: Conference 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 7 1, : : International Conference on Electrical Engineering (ICEE) 2006.

研究成果: Article

Various Power Conversion Equipment for Railroad

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

研究成果: Article

Railroads
2005

Application of Visualization Method for Power System

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

研究成果: Article

Visualization
Reactive power
Computer systems
Electric potential
2 引用 (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. 巻 2005. p. 361-366 6 p. 1599290

研究成果: Conference contribution

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

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

Nakamura, A., Ono, T., Fujita, G., Yokoyama, R., Koyanagi, K. & Funabashi, T., 2005 9 1, : : International Universities Power Engineering Conference (UPEC 2005).

研究成果: Article

1 引用 (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. 巻 2005. p. 385-390 6 p. 1599294

研究成果: Conference 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 6, : : International Energy Journal. 6, 1 PART 1, p. 185-195 11 p.

研究成果: Article

Torque
Torque control
Turbogenerators
Gas turbines
Voltage drop

Overview of Fuel Cell for Power System

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

研究成果: Article

Fuel cells
High temperature operations
Solid oxide fuel cells (SOFC)
Thermal energy
Hydrogen
20 引用 (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. 巻 2005. p. 67-72 6 p. 1599243

研究成果: Conference contribution

Gas turbines
Thermal energy
Farms
Wind power
Energy conservation
2004

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

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

研究成果: Article

Power System Stability Improvement Using Doubly-Fed Rotary Frequency Converter

Nakamura, A., Fujita, G., Yokoyama, R., Koyanagi, K. & Funabashi, T., 2004 7 1, : : ICEE 2004 Sapporo.

研究成果: Article

9 引用 (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 3, : : Electric Power Systems Research. 68, 3, p. 248-257 10 p.

研究成果: Article

Turbogenerators
Gas turbines
Turbines
Torque
Measurement errors
9 引用 (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 1 1, : : Electric Power Systems Research. p. 248-257

研究成果: Article

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. 巻 38. p. 108-111 4 p.

研究成果: Conference contribution

Turbogenerators
Torque
Controllers
Electric potential
7 引用 (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. 巻 2. p. 401-407 7 p. 1304343

研究成果: Conference contribution

Frequency converters
Farms
Wind power
Synchronous motors
Asynchronous generators
3 引用 (Scopus)

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

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

研究成果: Conference 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. (版). p. 200-204 5 p.

研究成果: Conference contribution

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

Shaft Torque Estimation Model for Private Generation System

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

研究成果: Article

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. (版). p. 33-37 5 p.

研究成果: Conference contribution

Animation
Visualization
Personal computers
Electric potential
Complex networks
2002
15 引用 (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 版 巻 3. p. 1584-1588 5 p.

研究成果: Conference 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 7 1, : : ICEE 2002 JEJU.

研究成果: Article

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. 巻 37. p. 23-27 5 p.

研究成果: Conference contribution

Turbogenerators
Torque
Controllers
Loads (forces)
4 引用 (Scopus)
Decomposition
Feedback
Electric power system interconnection
Controllers
Decentralized control
4 引用 (Scopus)

Decentralized Excitor Stabilizing Control for Multimachine Power System

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

研究成果: Article

2 引用 (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. 巻 37. p. 795-799 5 p.

研究成果: Conference contribution

Electric power system interconnection
Farms
Wind power
HVDC power transmission
3 引用 (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., 巻 2. p. 779-783 5 p. 1047505

研究成果: Conference 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 7 1, : : ICEE 2002 JEJU.

研究成果: Article

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. 巻 2. p. 1225-1230 6 p.

研究成果: Conference 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 1 1, : : IEEE Winter Meeting 2002.

研究成果: Article

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 7 1, : : ICEE 2002 JEJU.

研究成果: Article

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

Kakinoki, T., Yokoyama, R., Fujita, G., Koyanagi, K. & Funabashi, T., 2002 7 1, : : ICEE 2002 JEJU.

研究成果: Article

Some Topics on Protection and Control of Distributed Resources

Funabashi, T., Koyanagi, K., Fujita, G. & Yokoyama, R., 2002 11 1, : : MED 2002.

研究成果: Article

3 引用 (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 版 巻 3. p. 2023-2027 5 p.

研究成果: Conference 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 7 1, : : The International Conference on Electrical Engineering 2001 (ICEE2001).

研究成果: Article