With increasing the penetration level of wind power in power grids, ensuring the stable power supply tends to be difficult. Thus, towards the implementation of future smart grids with large-scale wind power integration, techniques for enhancing the stability of wind-integrated power systems is extremely significant. Most of existing methods to design controllers that can theoretically ensure the entire system stability need exact knowledge of the entire power system constituting various electric power components and their interconnection structure. However, it is almost impossible to obtain such exact knowledge due to the massive complexity of power systems. Therefore, these existing approaches do not fully fit for practical application.
Specially Appointed Assistant Professor Tomonori Sadamoto, Associate Professor Aranya Chakrabortty, Assistant Professor Takayuki Ishizaki, and Professor Jun-ichi Imura have developed a method to design a stabilizing controller that can be designed based on the knowledge of only the wind farm of interest, but not the entire power system. By plug in the controller to the wind farm, we can enhance the stability of the entire power system. The effectiveness of the developed method has been shown by a numerical simulation through a benchmark power system model representing a simplified New York-New England power system.
This research is collaborated with Associate Professor Aranya Chakrabortty in FREEDM Center of North Carolina State University. With this collaboration as a first opportunity, NSF ECCS research project organized by Associate Professor Aranya Chakrabortty has been started.
JST CREST （http://www.jst.go.jp/kisoken/crest/en/）
Research Area “Creation of Fundamental Theory and Technology to Establish a Cooperative Distributed Energy Management System and Integration of Technologies Across Broad Disciplines Toward Social Application”
Research Theme “System Theory for Harmonized Power System Control Based on PV Power Prediction”
T. Sadamoto, A. Chakrabortty, T. Ishizaki and J. Imura. “Retrofit Control of Wind-Integrated Power Systems”, IEEE Transactions on Power Systems, published on line October 6, 2017,
Jun-ichi Imura, Ph.D.
Professor, Department of Systems and Control Engineering, School of Engineering, Tokyo Institute of Technology
ICT Group, Department of Innovation Research, JST