Performance of the Sendai Microgrid During the 2011 Earthquake and Tsunami

Wednesday, March 21, 2012

TITLE: Performance of the Sendai Microgrid During the 2011 Earthquake and Tsunami
SPEAKER: Keiichi Hirose, Sr. Research Engineer, Nippon Telegraph and Telephone Corporation (NTT)
LOCATION: Bldg. 90, Room 3122
DATE & TIME: At 12:00 PDT, Friday, March 23, 2012

DESCRIPTION: This seminar provides an overview of the Sendai Microgrid, and outlines its behavior during the earthquake and its aftermath. On March 11, 2011, an earthquake of unprecedented violence occurred in the Tohoku region, along Japan’s Pacific Coast. The extremely intense vibrations severely damaged electric utility facilities, and the subsequent tsunami washed away many coastal towns and villages. The Sendai Microgrid at Tohoku Fukushi University, located northwest of downtown Sendai, had been built and demonstrated over the four years beginning in 2005. The Microgrid was funded under an empirical microgrid research program supported by Japan’s New Energy and Industrial Technology Development Organization (NEDO). Although the demonstration was officially completed in March 2008, operation of the microgrid has been continued, and some minor changes have been implemented. The catastrophe of March 11 caused a lengthy power outage in many areas of the Northeast, but the Microgrid, using its distributed generators and batteries, maintained continuous power supply. This campus specializes in medical practitioner training, and some of its facilities, including a hospital, nursing care facilities, and a data center were supplied with power as well as heat heat generated by the microgrid’s thermal generators.

BIO: Keiichi received his B.S. in electrical engineering from Yamagata University in 1990 and his M.S. in electrical engineering from Niigata University in 1992. He joined Nippon Telegraph and Telephone Corporation in 1992. Since 2004, he has been a senior research engineer at NTT Facilities, Inc. He received his Ph.D. degree in Electronic Engineering from Nagoya University in 2011. He is actively involved in research on power quality, direct current distribution, and telecommunications power systems. Based on his 20 years experience in power system design and operation, he is currently developing reliable high power quality mixed AC-DC power facilities for telecom and data centers. He is based at NTT Facilities' R&D Headquarters in Tokyo, but has led the highly successful Sendai microgrid project throughout. He is also involved in the DC microgrid demonstration at the Aichi Institute of Technology, and in other NTT Facilities green building and on-site generation projects. He won the distinguished paper award of the Institute of Electrical Engineers of Japan (IEEJ) in 2010 and the academic paper award of the Institute of Electrical Installation Engineers of Japan (IEIEJ) in 2011, and is a representative member of Japan National Committee of the IEC SMB SG4 (low voltage DC distribution).