Faculty Profiles - MITANI Yasunori

Papers - MITANI Yasunori

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A Study of DC Voltage Control for Smart Photovoltaic System by Connecting Electric Vehicle Reviewed

Takahisa Kawagoe, Kiyotaka Fuji, Atsushi Shiota, Yasunori Mitani

2nd International Symposium on Applied Engineering and Sciences (SAES2014) 2014.12

Decentralized Load Frequency Control in an Interconnected Power System Using Coefficient Diagram Method Reviewed

Michael Z. Bernard, T.H.Mohammed, Yaser Soliman Qudaih, Yasunori Mitani

International Journal of Electric Power and Energy Systems 63 165 - 172 2014.12

Power smoothing of wind turbine generator using Fuzzy-PI pitch angle controller Reviewed

Garasi P., Watanabe M., Mitani Y.

2014 Australasian Universities Power Engineering Conference, AUPEC 2014 - Proceedings 2014.11

Language：English Publishing type：Research paper (international conference proceedings)

© 2014 ACPE. Wind power is among the rapidly spreading renewable energy sources in the past years. It has been a trend that renewable energy sources including wind generators be either connected in the distribution level near the loads, or be operated in islanded operation. However, since wind generators are highly dependent on wind speed which changes throughout the day, wind output of wind power plants are highly expected to fluctuate. This paper proposes a pitch angle control method using Fuzzy logic and PI controllers for a wind power plant. The pitch angle control is designed to work with conventional PI controller to vary its parameters to smoothen the wind turbine output in cases of varying wind speeds. The effectiveness of the proposed control method is demonstrated through simulation in Matlab/Simulink environment.

DOI： 10.1109/AUPEC.2014.6966531

Scopus

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A Study of Control Unit for Smart Photovoltaic System by Connecting Electric Vehicle Reviewed

Takahisa Kawagoe, Kiyotaka Fuji, Atsushi Shiota, Yasunori Mitani

The 6th International Conference on Integration of Renewable and Distributed Energy Resources (IRED2014: NEDO) 2014.11

Analysis of Turbine Generator Shaft Torsional Vibration Caused by Self-commutated Converters Reviewed

Watanabe Masayuki, Iki Hiroyuki, Sakamoto Kazuma, Mitani Yasunori, Uriu Yoshihisa, Kado Yoshihide

IEEJ Transactions on Power and Energy ( The Institute of Electrical Engineers of Japan ) 134 ( 11 ) 900 - 907 2014.11

Language：English Publishing type：Research paper (scientific journal)

This paper presents a simple analysis tool for torsional vibration of the rotor shaft of turbine generator which is interconnected with a power system with self-commutated converters. The evaluation is based on the analysis of measurement data in the field and the instantaneous value based power system simulation. A number of power converters with large capacity are installed in industrial power systems. Especially, interharmonics originated from self-commutated converters cause the torsional vibration at the rotor shaft of rotating machines. The interaction between rotating machine and converters is known as sub-synchronous torsional interaction. The resonance between interharmonics from converters and the natural frequency of the rotor shaft cause the large torsional vibration, which leads to the shaft damage. In this paper, the influence of interharmonics to turbine generators is investigated. If there were air gap torque fluctuations with frequency near the natural frequency caused by interharmonics, which have frequency less than 100 Hz of sideband wave caused by asynchronous pulse width modulation, the rotor shaft might be damaged by the torsional vibration. In this paper, the emerging condition of the torsional vibration and the impact to the generator are investigated.

DOI： 10.1541/ieejpes.134.900

Scopus

CiNii Article

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Global Oscillation Mode Analysis Using Phasor Measurement Units-based Real Data Reviewed

Qing Liu, Masayuki Watanabe, Yasunori Mitani

International Journal of Electrical Power and Energy Systems 67 393 - 400 2014.11

Robust Hydro Thermal Power system Controller Considering Energy Capacitor System and Wind Power Source Reviewed

International Journal of Process Systems Engineering 3 ( 1 ) 90 - 109 2014.11

Study on operation method and analysis in distribution system under large-scale introduction of photovoltaic and gas cogeneration system Reviewed

International Conference on Smart Grid and Clean Energy Technologies 2014 2014.10

High efficiency operation by water temperature and area control in thermal radiative cooling/heating system Reviewed

International Conference on Smart Grid and Clean Energy Technologies 2014.10

Construction of Power Supply System Using Electric Vehicle for Stable Power Delivery from PV Generation Reviewed

Takahisa Kawagoe, Kiyotaka Fuji, Atsushi Shiota, Yasunori Mitani, Yaser Soliman Qudaih

2014 International Conference on Smart Grid and Clean Energy Technologies (ICSGCE 2014) 2014.10

Functional PCS power supply system with EV battery storage for stable PV power delivery Reviewed

Kiyotaka Fuji, Yoshihito Shirai, Takahisa Kawagoe, Atsushi Shiota, Yasunori Mitani, Yaser Soliman Qudaih

2014 International Conference on Smart Grid and Clean Energy Technologies (ICSGCE 2014) 2014.10

Coefficient diagram method based load frequency control for a modern power system Reviewed

Princess Garasi,Yaser Qudaih,Raheel Ali,Masayuki Watanabe,Yasunori Mitani

International Conference on Smart Grid and Clean Energy Technologies 2014 2014.10

Optimal sizing of battery energy storage system in microgrid system considering load shedding scheme Reviewed

Thongchart Kerdphol,Yaser Qudaih,Princess Garasi,Yasunori Mitani

International Conference on Smart Grid and Clean Energy Technologies 2014 2014.10

Syncrophasor Measurement Based Small Signal Stability Assessment using FFT-CWT Approach in Japan-Campus-WAMS Reviewed

5th IEEE PES Innovative Smart Grid Technologies(ISGT2014) 2014.10

Battery Energy Storage System Size Optimization in Microgrid using Particle Swarm Optimization Reviewed

IEEE PES Innovative Smart Grid Technologies(ISGT2014) 2014.10

A research of basic energy reduction approach using pv power smoothing ev storage system and led simple circuit for create green innovation Reviewed

Fuji K., Shirai Y., Mitani Y., Watanabe M., Kawagoe T., Shiota A.

Journal of Engineering Science and Technology 9 ( Spec. Issue on Applied Engineering and Sciences (SAES2013), October 2014 ) 76 - 89 2014.10

Language：English Publishing type：Research paper (scientific journal)

© School of Engineering, Taylor’s University. In general, Light Emitting Diode (LED) is low power consumption, and Photovoltaic (PV) generation of Renewable Energy is effective as energy creation. However, LED applications have a problem of LED Circuit Radiation Noise and PV generation applications have a problem of the Output Power fluctuation in the weather. This paper will be proposed as an especial approach of the energy reduction to contribute to the realization of the low carbon society in the world. In this research, without using Common Mode Choke (CMC) Noise Cut filter, the Radiation Noise reduction result in World Standard Guideline by the selection of a simple circuit of the most effective LED lighting of various power reduction methods have been confirmed by the examinations. Additionally, in order to investigate the lighting specification, the simple Lighting evaluation equipment has been developed. As an energy fluctuation reduction research, the new control system of the PV fluctuation electric power using EV battery charge-discharge electric power that is able to be easily connected with a Power Conditioning System (PCS) input is proposed. A simulation result using the actual PV generator output data is provided to confirm the effectiveness of Simple Moving Average (SMA) method. Moreover, the outline of a new large area monitoring control GIS system for the implementation of the PV generator power prognostication without the weather estimation is introduced.

Scopus

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A research of energy reduction approach using PV power smoothing EV storage system and LED simple circuit for create green innovation Reviewed

76 - 89 2014.10

Study on operation method and analysis in distribution system under large-scale introduction of photovoltaic and gas cogeneration systems Reviewed

Masanori Tokumitsu,Shohei Haga,Yaser Qudaih,Masayuki Watanabe,Yasunori Mitani

International Journal of Smart Grid and Clean Energy 3 ( 4 ) 380 - 384 2014.10

Coefficient Diagram Method Based Load Frequency Control for a Modern Power System Reviewed

Princess Garasi, Yaser Qudaih, Raheel Ali, Masayuki Watanabe, Yasunori Mitani

Journal of Electronic Science and Technology 12 ( 3 ) 270 - 276 2014.10

High efficiency operation by water temperature and area control in thermal radiative cooling/heating system Reviewed

Hiroaki Ikegami,Akihiro Satake,Hisafumi Yamada,Yasunori Mitani

International Journal of Smart Grid and Clean Energy 3 ( 4 ) 437 - 440 2014.10

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Papers - MITANI Yasunori