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Research Output 1994 2019

  • 487 Citations
  • 12 h-Index
  • 156 Article
  • 84 Conference contribution
  • 1 Chapter
  • 1 Conference article
1995

Automatic Generation Control Considering Generation Rate Constraints Based on Observer Theory

Shirai, G., Kawakami, S. & Fujita, G., 1995 Jun 1, In : Stockholm Power Tech. p. 211-216

Research output: Contribution to journalArticle

1996

A New Method to Estimate the Amount of Power Outage Based on the Idea of Inverse Problem

Fujita, G., Shirai, G. & Yokoyama, R., 1996 Jul 1, In : International Federation of Automatic Control ’96 (IFAC’96). p. 157-162

Research output: Contribution to journalArticle

Optimal load-shedding using local information

Fujita, G. & Shirai, G., 1996, In : Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi). 116, 2, p. 32-51 20 p.

Research output: Contribution to journalArticle

Outages
Quadratic programming
Power generation
1997

An Anti-Windup Schme for Power Satbility Improvement

P.K.Goswami, P. K. G. & Fujita, G., 1997 Oct 1, In : Power Technology & Power System Technology Reseach Association. p. 97-132

Research output: Contribution to journalArticle

Branch Overload Alleviation by Flexible Coordination of Generation Rescheding and Load-Shedding

Niimura, T., Yokoyama, R., Goswami, P. K. & Fujita, G., 1997 Jul 1, In : Intelligent System Appricaton to Power Systems (ISAP’97). p. 84-88

Research output: Contribution to journalArticle

Comparative Performance of Hoo and LQG Controllers for Power System Stability Improvement

Yokoyama, R., Goswami, P. K. & Fujita, G., 1997 Oct 1, In : The 29th North American Power Symposium (NAPS’97). p. 211-217

Research output: Contribution to journalArticle

Outages
Differential equations
1 Citation (Scopus)

FACTS stabilization control for multi-machine power system

Fujita, G., Yokoyama, R., Koyanagi, K., Shiratori, S., Takeuchi, S. & Shirai, G., 1997, Proceedings of the Universities Power Engineering Conference. Anon (ed.). Iraklio, Greece: Technological Educational Institute, Vol. 1. p. 17-20 4 p.

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

Capacitors
Stabilization
Governors
Short circuit currents
Damping
1 Citation (Scopus)

FACTS Stabilization Control for Multi-Machine Power Systems

Fujita, G., Yokoyama, R., Shiratori, S., Takeuchi, S. & Shirai, G., 1997 Sep 1, In : University of Power Engineering Conference ’97 (UPEC’97). p. 17-20

Research output: Contribution to journalArticle

Electric potential
Outages
Quadratic programming
Computer simulation

New Autonomous Load-Shedding Scheme Based on Local Information

Fujita, G., Yokoyama, R., Takeuchi, S. & Shirai, G., 1997 Aug 1, In : IFAC/CIGRE Symposium on Control of Power System and Power Plants (CPSPP’97). p. 494-499

Research output: Contribution to journalArticle

3 Citations (Scopus)

Power system stabilizing control using variable series capacitor based on H INF control theory considering AVR and governor

Fujita, G., Yokoyama, R., Niimura, T., Makita, D., Takeuchi, S. & Shirai, G., 1997, Canadian Conference on Electrical and Computer Engineering. IEEE, Vol. 1. p. 43-46 4 p.

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

Governors
Control theory
Capacitors
Stabilization
Power electronics
3 Citations (Scopus)

Power System Stabilizing Control Using Variable Series Capasitor Based on Hoo Control Theory Considering AVR and Governor

Fujita, G., Yokoyama, R., Niimura, T., Makita, D., Takeuchi, S. & Shirai, G., 1997 May 1, In : Canadian Conference on Electrical Engineering 1997 (CCECE’97). p. 43-46

Research output: Contribution to journalArticle

Stabilization of Multi-Machine Power System Using Variable Series Copacitor with Hoo Control Theory

Fujita, G., Yokoyama, R., Shiratori, S., Takeuchi, S. & Shirai, G., 1997 Jul 1, In : Intelligent System Application to Power Systems (ISAP’97). p. 207-212

Research output: Contribution to journalArticle

Stabilizing Control Coordirating Variable Series Capacitor, AVR and Governor in Large Scale Power System

Fujita, G., Yokoyama, R., Makita, D., Takeuchi, S. & Shirai, G., 1997 Jul 1, In : The International Conference on Electrical Engineering ’97 (ICEE’97). p. 330-333

Research output: Contribution to journalArticle

1998

An H-inf based PSS for Multi Machine Stabilization’

Goswami, P. K., Fujita, G., Yokoyama, R. & Devi, A., 1998 Aug 1, In : POWERCON’98.

Research output: Contribution to journalArticle

An H based PSS for multi-machine stabilisation

Goswami, P. K., Devi, A., Yokoyama, R. & Fujita, G., 1998 Jan 1, POWERCON 1998 - 1998 International Conference on Power System Technology, Proceedings. Institute of Electrical and Electronics Engineers Inc., Vol. 2. p. 781-784 4 p.

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

Stabilization
Controllers

Decentralzed Load Frequency Control Based On H-inf Control with Observer Theory

Niioka, S., Yokoyama, R., Ishii, T., Shirai, G. & Fujita, G., 1998 Jul 1, In : The International Conference on Electrical Engineering’98(ICEE’98). p. 214-217

Research output: Contribution to journalArticle

Digital PSS for Multi-machinne Stabillty’

Goswami, P. K., Fujita, G., Yokoyama, R. & Devi, A., 1998 Sep 1, In : Universities Power Engineering Confence’98(UPEC’98). p. 30-32

Research output: Contribution to journalArticle

3 Citations (Scopus)

Local Power Flow based Deccentralized TCSC Controller

Fujita, G., Goswami, P. K. & Yokoyama, R., 1998 Aug 1, In : POWERCON’98. p. 353-356

Research output: Contribution to journalArticle

New Methodology for the design of Power Flow TCSC Contoller’

Fujita, G., Goswami, P. K., Yokoyama, R. & Shirai, G., 1998 Sep 1, In : Universities Power Engineering Conference’98(UPEC’98).

Research output: Contribution to journalArticle

1999

Linear Matrix Inquality Based TCSC Contoroller Considering Load Characterstic

Ishimaru, M., Shirai, G., Fujita, G. & Yokoyama, R., 1999 Aug 1, In : The International Conference on Electrical Engoneering’99(ICEE’99). p. 105-108

Research output: Contribution to journalArticle

Performance Assessment on Local Power Flow Based TCSC Contoroller

Fujita, G., Niioka, S., Yokoyama, R. & Shirai, G., 1999 May 1, In : International Power Engineering Conference 1999(IPEC’99). p. 236-239

Research output: Contribution to journalArticle

Quadrature Booster for Opimistation of Power Flow

Goswami, P. K., Yokoyama, R. & Fujita, G., 1999 Aug 1, In : Budapest PowerTech’99. p. 21-11

Research output: Contribution to journalArticle

3 Citations (Scopus)

Quadrature booster for optimisation of power flow

Goswami, P. K., Yokoyama, R. & Fujita, G., 1999 Jan 1, International Conference on Electric Power Engineering, PowerTech Budapest 1999. Institute of Electrical and Electronics Engineers Inc., 1 p. 826621

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

Electric power distribution
3 Citations (Scopus)

TCSC Control Based on Linear Matrix Inequality

Ishimaru, M., Shirai, G., Fujita, G. & Yokoyama, R., 1999 Aug 1, In : Budapest PowerTech’99. p. 97-44

Research output: Contribution to journalArticle

2000

An effect of fault current limiter to non-utility generator shaft torque under voltage sag

Funabashi, T., Otoguro, H., Tanabe, T., Fujita, G., Koyanagi, K. & Yokoyama, R., 2000, Proceedings of the Universities Power Engineering Conference. p. 32 1 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Fault current limiters
Torque
Electric potential
Electric circuit breakers
Gears

An Effect of Fault Limiter to Non Utility Generator Shaft Torque Under Voltage Sag

Funabashi, T., Otoguro, H., Tanabe, T., Fujita, G., Koyanagi, K. & Yokoyama, R., 2000 Sep 1, In : University Power Engineering Conference 2000 (UPEC2000).

Research output: Contribution to journalArticle

10 Citations (Scopus)

An influence of voltage sag duration on nonutility generator's shaft torque

Funabashi, T., Otoguro, H., Fujita, G., Koyanagi, K. & Yokoyama, R., 2000, 2000 IEEE Power Engineering Society, Conference Proceedings. Institute of Electrical and Electronics Engineers Inc., Vol. 1. p. 153-158 6 p. 849946

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

Torque
Electric potential
Electric switchgear
Adenosinetriphosphate

An Influence of Voltage Sag Duration on Non-utility Generator’s Shaft Torque

Funabashi, T., Otoguro, H., Fujita, G., Koyanagi, K. & Yokoyama, R., 2000 Jan 1, In : IEEE PES Winter Meeting 2000.

Research output: Contribution to journalArticle

8 Citations (Scopus)

An influence of voltage sag on non-utility generator shaft torque

Funabashi, T., Otoguro, H., Tanabe, T., Fujita, G., Koyanagi, K. & Yokoyama, R., 2000, Proceedings of the IEEE Power Engineering Society Transmission and Distribution Conference. Vol. 4. p. 2463-2468 6 p.

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

Torque
Electric potential
Short circuit currents
Adenosinetriphosphate
Equations of state

Local Power Flow Based Controller for Large Scale Power System

Kakinoki, T., Fujita, G., Nakano, T., Goswami, P. K., Yokoyama, R. & Shirai, G., 2000 Sep 1, In : University Power Engineering Conference 2000 (UPEC2000).

Research output: Contribution to journalArticle

Local power flow based TCSC controller for large-scale power system

Kakinoki, T., Fujita, G., Nakano, T., Goswami, P. K., Yokoyama, R. & Shirai, G., 2000, Proceedings of the Universities Power Engineering Conference. p. 178 1 p.

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

Thyristors
Capacitors
Controllers
Stabilization
Damping
1 Citation (Scopus)

Visualization of multi-machine power system dynamics

Kakinoki, T., Shinada, Y., Fujita, G., Nakano, T. & Yokoyama, R., 2000, Proceedings of the Universities Power Engineering Conference. p. 126 1 p.

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

Animation
Dynamical systems
Visualization
MATLAB

Visualization of Multi-machine System Dynamics

Kakinoki, T., Shinada, Y., Fujita, G., Nakano, T. & Yokoyama, R., 2000 Sep 1, In : University Power Engineering Conference 2000 (UPEC2000).

Research output: Contribution to journalArticle

Visualization of subsynchronous Resonance

Kakinoki, T., Takahashi, K., Fujita, G., Nakano, T. & Yokoyama, R., 2000 Jul 1, In : The International Conference on Electrical Engineering2000 (ICEE2K).

Research output: Contribution to journalArticle

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

19 Citations (Scopus)

Decentralized load frequency based on H control

Ishii, T., Shirai, G. & Fujita, G., 2001 Aug, In : Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi). 136, 3, p. 28-38 11 p.

Research output: Contribution to journalArticle

Control theory
Control systems
Decentralized control
Robust control
Frequency response
19 Citations (Scopus)

Decentralized Load Frequency Based on H∞ Control

T.Ishii, T. I., G.Shirai, G. S., G.Fujita, G. F. & Fujita, G., 2001 Mar 1, In : Electrical Engineering in Japan. 36, p. 28-38

Research output: Contribution to journalArticle

1 Citation (Scopus)

Estimation of turbine shaft torques using observer

Kakinoki, T., Yokoyama, R., Fujita, G., Nakano, T., Koyanagi, K., Funabashi, T. & Nara, H., 2001, 2001 IEEE Porto Power Tech Proceedings. Vol. 2. p. 81-84 4 p. 964722

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

Turbines
Torque
Control systems

Shaft Torque Observer for Generator Control

Kakiniki, T., Yokoyama, R., Fujita, G., Nakano, T., Koyanagi, K., Funabashi, T. & Nara, H., 2001 Jul 1, In : The International Conference on Electrical Engineering 2001 (ICEE2001).

Research output: Contribution to journalArticle

Visualization of Power System Transient Stability

Kakinoki, T., Masuyama, Y., Matsumura, T., Nakano, T., Fujita, G. & Yokoyama, R., 2001 Jul 1, In : International Conference on Information Technology Based Higher Education and Training 2001 (ITHET2001).

Research output: Contribution to journalArticle

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