Masahiro Takasaki / Visiting Professor / Division of Transdisciplinary Sciences Department of Advanced Energy / / Power Electronics Application Career Summary 1981: Graduated, Faculty of Engineering, The University of Tokyo 1983: Master of Engineering from The University of Tokyo 1983: Central Research Institute of Electric Power Industry (CRIEPI) 1987-88: Visiting Assistant Professor, University of Texas at Arlington 1992: Doctor of Engineering from The University of Tokyo 2004-: Visiting Professor, Graduate School of Frontier Sciences, The University of Tokyo He is currently a senior research scientist at CRIEPI. Educational Activities Graduate school:Special Lecture on Advanced Energy Engineering, Overview of Advanced Electric Energy Systems Research Activities To achieve an efficient and reliable electric energy supply, we are conducting research on the enhancement of power system controllability employing power electronics devices. Main research items include the development of control scheme and clarification of optimal deployment for power electronics applied systems. Recently, we have addressed the challenge of developing a high performance SiC device applied converter which is indispensable for optimal energy utilization. (1) Development of control scheme for power electronics applied systems - HVDC system control to improve supply reliability [1]-[3] - FACTS control (High speed power flow and voltage control) [4] - Controls for distributed generation system and power quality compensation system (2) Optimal deployment of power electronics devices aiming to build an intelligent grid - Effect of power electronics application considering various uncertainties - Planning method to identify optimal deployment of power electronics devices - Economic justification and marginal cost estimation (3) Development of high performance converter - Evaluation of the relation between required performance and converter design parameters - Simulation program to optimize converter design parameters - Transformer-less converter [5] and SiC device applied converter Literature 1) M.Takasaki, K.Takenaka: Dynamics of HVDC System under Unbalanced AC Transmission Line Faults and its Stabilization, Transactions of IEE Japan, Vol.112-B, No.1, pp.27-35(1992)(in Japanese) 2) M.Takasaki, T.Sato, S.Hara, H.Chishaki: Operating Experiences and Results of On-line Extinction Angle Control in Kii Channel HVDC Link, CIGRE 2004 session paper B4-212 (2004) 3) M.Takasaki, N.Gibo, K.Takenaka, T.Hayashi, H.Konishi, S.Tanaka, H.Ito: Control and Protection Scheme of HVDC System with Self-commutated Converter in System Fault Conditions, T.IEE Japan, Vol.118-B, No.12, pp.1363-1373(1998)(in Japanese) 4) M.Takasaki: Power Transfer Capability Enhancement with UPFC under Circumstances of Uncertain Power Flow Pattern, IEEE PES Transmission & Distribution Conference, 05TD0303 (2006) 5) N.Okada, M.Takasaki, H.Sakai, S.Kato: Development of a 6.6kV-1MVA Transformerless Loop Balance Controller, IEEE Power Electronics Specialist Conference Proceedings, pp.1087-1091 (2007) Other Activities Institute of Electrical Engineers of Japan(IEEJ), Institute of Electrical and Electronics Engineers (IEEE), International Council on Large Electric Systems (CIGRE) Secretary of IEEJ Power Engineering Committee (1990-1995), Secretary of IEEJ Technical Committee (1997-1999), Chairman of CIGRE SC B4 Japan National Committee (2006-), IEEE PES Japan Chapter Treasurer (2007-) Future Plan We will develop advanced system control technologies to build future intelligent grids that enable reliable and economic power supply against the background of increasing renewable energy sources and nuclear generation. Through demand-side research for improving electric energy utilization, we will challenge the commercial applications of a SiC device applied converter. Messages to Students Let's advance energy system innovation to ensure energy security and to solve global environmental issues.