• 1154 Citations
  • 18 h-Index
1992 …2020

Research output per year

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Research Output

2010

Finite element analysis of magnetic field problem with open boundary using infinite element technique

Tamitani, S., Takamatsu, T., Otake, A., Wakao, S., Kameari, A. & Takahashi, Y., 2010 Jul 26, Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation, CEFC 2010. 5481295. (Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation, CEFC 2010).

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

Multiobjective design optimization of electric machine by using genetic algorithm with aggressive species diversity

Tsurumi, Y. & Wakao, S., 2010 Jul 26, Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation, CEFC 2010. 5481748. (Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation, CEFC 2010).

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

Performance evaluation of parallel fast multipole accelerated boundary integral equation method in electrostatic field analysis

Takahashi, Y., Iwashita, T., Nakashima, H., Wakao, S., Fujiwara, K. & Ishihara, Y., 2010 Jul 26, Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation, CEFC 2010. 5481427. (Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation, CEFC 2010).

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

Proposal for a benchmark model of a laminated iron core and a large-scale and highly accurate magnetic analysis

Takahashi, Y., Wakao, S., Fujiwara, K., Kaimori, H. & Kameari, A., 2010 Jan 15, In : Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi). 170, 1, p. 26-35 10 p.

Research output: Contribution to journalArticle

2009

Active coordinated operation of a distribution network system for many connections of distributed generators

Hayashi, Y., Kawasaki, S., Matsuki, J., Wakao, S., Baba, J., Hojo, M., Yokoyama, A., Kobayashi, N., Hirai, T. & Oishi, K., 2009 May 1, In : Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi). 167, 3, p. 46-57 12 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)
4 Citations (Scopus)

Improvement of convergence characteristic in nonlinear transient eddy-current analyses using the error correction of time integration based on the time-periodic FEM and the EEC method

Takahashi, Y., Tokumasu, T., Fujita, M., Wakao, S., Iwashita, T. & Kanazawa, M., 2009 Jul 30, In : IEEJ Transactions on Power and Energy. 129, 6, p. 7+791-798

Research output: Contribution to journalArticle

5 Citations (Scopus)

Investigation of algebraic multigrid method for magnetic field analysis of an electric machine with a laminated core

Miwa, M., Yamada, T. & Wakao, S., 2009 Mar 1, In : IEEE Transactions on Magnetics. 45, 3, p. 992-995 4 p., 4787397.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Large-scale Eddy-current analysis of conductive frame of large-capacity inverter by hybrid finite element-boundary element method

Tatsuishi, T., Takahashi, Y., Wakao, S., Tobita, M., Tominaga, I. & Kikuchi, H., 2009 Mar 1, In : IEEE Transactions on Magnetics. 45, 3, p. 972-975 4 p., 4787464.

Research output: Contribution to journalArticle

7 Citations (Scopus)

Micromagnetic simulation by using the fast multipole method specialized for uniform brick elements

Takahashi, Y., Wakao, S., Iwashita, T. & Kanazawa, M., 2009 Apr 27, In : Journal of Applied Physics. 105, 7, 07D514.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Starting procedure of rotational sensorless PMSM in the rotating condition

Taniguchi, S., Mochiduki, S., Yamakawa, T., Wakao, S., Kondo, K. & Yoneyama, T., 2009 Feb 12, In : IEEE Transactions on Industry Applications. 45, 1, p. 194-202 9 p.

Research output: Contribution to journalArticle

32 Citations (Scopus)

Starting procedure of rotation sensorless PMSM at coasting condition for railway vehicle traction

Yamakawa, T., Wakao, S., Kondo, K., Yoneyama, T., Taniguchi, S. & Mochizuki, S., 2009 Nov 15, In : Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi). 169, 2, p. 56-63 8 p.

Research output: Contribution to journalArticle

10 Citations (Scopus)
2008

Advancement of analysis method for electromagnetic screening effect of viaducts for railway

Okutani, T., Nakamura, N., Terada, N., Tate, Y., Inada, S., Ogawa, T., Son, Y. & Wakao, S., 2008 Dec 1, In : ieej transactions on industry applications. 128, 3, p. 310-320+20

Research output: Contribution to journalArticle

3 Citations (Scopus)

A stability analysis of the mechanical simulator for induction motor speed sensor-less control in ultra lower speed range

Homma, T., Wakao, S., Shibuya, H., Kondo, K., Sato, Y. & Furuya, T., 2008 Nov 28, 11th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2008. 4634668. (11th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2008).

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

5 Citations (Scopus)
7 Citations (Scopus)
1 Citation (Scopus)

Loss analysis of permanent-magnet synchronous motor using three-dimensional finite-element method with homogenization method

Takahashi, Y., Wakao, S., Kondo, M. & Terauchi, N., 2008 Apr 21, In : Journal of Applied Physics. 103, 7, 07F126.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Robust design optimization approach by combination of sensitivity analysis and sigma level estimation

Nishida, N., Takahashi, Y. & Wakao, S., 2008 Jun 1, In : IEEE Transactions on Magnetics. 44, 6, p. 998-1001 4 p., 4526962.

Research output: Contribution to journalArticle

7 Citations (Scopus)
2007

Active coordinated operation of distribution network system for many connections of distributed generators

Hayashi, Y., Kawasaki, S., Matsuki, J., Wakao, S., Baba, J., Hojo, M., Yokoyama, A., Kobayashi, N., Hirai, T. & Oishi, K., 2007 Jan 19, In : IEEJ Transactions on Power and Energy. 127, 1, p. 41-52 12 p.

Research output: Contribution to journalArticle

16 Citations (Scopus)

Advancement of analysis method for electromagnetic screening effect of mountain tunnel

Okutani, T., Nakamura, N., Terada, N., Fukuda, M., Tate, Y., Inada, S., Itoh, H. & Wakao, S., 2007 Jan 1, In : ieej transactions on industry applications. 127, 4, p. 391-399+6

Research output: Contribution to journalArticle

Open Access
4 Citations (Scopus)

Application of non-linear modeling methods to wind power estimation

Watanabe, Y., Wakao, S., Takinami, T. & Oishi, K., 2007 Dec 1, European Wind Energy Conference and Exhibition 2007, EWEC 2007. p. 898-903 6 p. (European Wind Energy Conference and Exhibition 2007, EWEC 2007; vol. 2).

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

2 Citations (Scopus)

Application of stepwise multiple regression to design optimization of electric machine

Sonoda, S., Takahashi, Y., Kawagishi, K., Nishida, N. & Wakao, S., 2007 Apr 1, In : IEEE Transactions on Magnetics. 43, 4, p. 1609-1612 4 p.

Research output: Contribution to journalArticle

10 Citations (Scopus)

Battery capacity estimation in wind power generation system

Furuyama, R., Watanabe, Y. & Wakao, S., 2007 Dec 1, Proceedings of the 9th IASTED International Conference on Power and Energy Systems, PES 2007. p. 321-325 5 p. (Proceedings of the IASTED International Conference on Energy and Power Systems).

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

Energy consumption analysis of FC-EDLC hybrid railway vehicle by dynamic programming

Ogawa, T., Yoshihara, H., Wakao, S., Kondo, K. & Kondo, M., 2007 Dec 1, 2007 European Conference on Power Electronics and Applications, EPE. 4417520. (2007 European Conference on Power Electronics and Applications, EPE).

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

17 Citations (Scopus)

Large-scale and fast nonlinear magnetostatic field analysis by the magnetic moment method with the adaptive cross approximation

Takahashi, Y., Matsumoto, C. & Wakao, S., 2007 Apr 1, In : IEEE Transactions on Magnetics. 43, 4, p. 1277-1280 4 p.

Research output: Contribution to journalArticle

29 Citations (Scopus)

Large-scale magnetic field analysis of laminated core by using the hybrid finite element and boundary element method combined with the fast multipole method

Takahashi, Y., Wakao, S., Fujiwara, K. & Fujino, S., 2007 Jun 1, In : IEEE Transactions on Magnetics. 43, 6, p. 2971-2973 3 p.

Research output: Contribution to journalArticle

17 Citations (Scopus)

Position sensorless control of permanent magnet synchronous motor at low speed range using harmonic voltage injection

Taniguchi, S., Wakao, S., Kondo, K. & Yoneyama, T., 2007 Dec 1, 2007 European Conference on Power Electronics and Applications, EPE. 4417470. (2007 European Conference on Power Electronics and Applications, EPE).

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

10 Citations (Scopus)

Proposal for benchmark model of laminated iron core and the large-scale and highly accurate magnetic field analysis

Takahashi, Y., Wakao, S., Fujiwara, K., Kaimori, H. & Kameari, A., 2007 Sep 3, In : IEEJ Transactions on Power and Energy. 127, 8, p. 894-901+3

Research output: Contribution to journalArticle

1 Citation (Scopus)

Starting procedure of rotation sensorless PMSM at coasting condition for railway vehicle traction

Yamakawa, T., Wakao, S., Kondo, K., Yoneyama, T., Taniguchi, S. & Mochiduki, S., 2007 Jan 1, In : ieej transactions on industry applications. 127, 7, p. 700-706+3

Research output: Contribution to journalArticle

Open Access
5 Citations (Scopus)

Theoretical analysis of cancellation of DC-link current harmonics in the inverter-controlled DC electric railcar

Ogawa, T., Wakao, S., Taufiq, J., Kondo, K. & Terauchi, N., 2007 Dec 1, 2007 European Conference on Power Electronics and Applications, EPE. 4417469. (2007 European Conference on Power Electronics and Applications, EPE).

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

7 Citations (Scopus)
2006

A multiobjective optimal design of a hybrid power source system for a railway vehicle

Ogawa, T., Wakao, S. & Kondo, K., 2006, In : ieej transactions on industry applications. 126, 12, p. 1690-1698+13

Research output: Contribution to journalArticle

Open Access
6 Citations (Scopus)

Application of stepwise multiple regression to design optimization of electric machine

Sonoda, S., Takahasi, Y., Kawagishi, K., Nishida, N. & Wakao, S., 2006 Nov 21, 12th Biennial IEEE Conference on Electromagnetic Field Computation, CEFC 2006. 1632920. (12th Biennial IEEE Conference on Electromagnetic Field Computation, CEFC 2006).

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

A theoretical analysis of sideband harmonics on the inverter DC-link current for an electric railcar

Ogawa, T., Wakao, S., Taufiq, J., Kondo, K. & Terauchi, N., 2006 Jul 14, In : ieej transactions on industry applications. 126, 7, p. 1049-1057 9 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)

Fundamental study on the application of Just-In-Time Modeling to wind power estimation

Wakao, S., Hosogoshi, D. & Yamamura, T., 2006 Dec 1, European Wind Energy Conference and Exhibition 2006, EWEC 2006. p. 412-416 5 p. (European Wind Energy Conference and Exhibition 2006, EWEC 2006; vol. 1).

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

2 Citations (Scopus)

Investigation of the storage battery station for effective utilization of electric power generated by PV clusters

Wakao, S. & Ueda, N., 2006 Jan 1, Conference Record of the 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion, WCPEC-4. IEEE Computer Society, p. 2419-2422 4 p. 4060166. (Conference Record of the 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion, WCPEC-4; vol. 2).

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

5 Citations (Scopus)
21 Citations (Scopus)

Large-scale and fast nonlinear magnetostatic field analysis by the magnetic moment method with the adaptive cross approximation

Takahashi, Y., Matsumoto, C. & Wakao, S., 2006 Nov 21, 12th Biennial IEEE Conference on Electromagnetic Field Computation, CEFC 2006. 1633145. (12th Biennial IEEE Conference on Electromagnetic Field Computation, CEFC 2006).

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

Large-scale and highly accurate magnetic field analysis of magnetic shield

Takahashi, Y., Wakao, S. & Kameari, A., 2006 May 25, In : Journal of Applied Physics. 99, 8, 08H904.

Research output: Contribution to journalArticle

18 Citations (Scopus)
1 Citation (Scopus)

Magnetic field analysis of laminated core by using homogenization method

Muto, H., Takahashi, Y., Wakao, S., Fujiwara, K. & Kameari, A., 2006 May 25, In : Journal of Applied Physics. 99, 8, 08H907.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Reduction of fuel consumption in PV/ diesel hybrid power generation system by dynamic programming combined with genetic algorithm

Wakao, S. & Nakao, K., 2006 Jan 1, Conference Record of the 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion, WCPEC-4. IEEE Computer Society, p. 2335-2338 4 p. 4060145. (Conference Record of the 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion, WCPEC-4; vol. 2).

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

8 Citations (Scopus)
2005

A new flux weakening operation of interior permanent magnet synchronous motors for railway vehicle traction

Yamakawa, T., Wakao, S., Kondo, K. & Yoneyama, T., 2005 Jan 1, 2005 European Conference on Power Electronics and Applications. IEEE Computer Society, 1665714. (2005 European Conference on Power Electronics and Applications; vol. 2005).

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

9 Citations (Scopus)

Comparison between three-dimensional (3D) equivalent magnetic circuit network method and 3D finite element method for magnetic-field computation

Chun, Y. D., Oh, J. E., Fujishima, Y., Wakao, S., Lee, J. & Cho, Y. H., 2005 May 15, In : Journal of Applied Physics. 97, 10, 10E105.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Large-scale analysis of surface charge in eddy-current problems by the fast multipole method

Takahashi, Y., Fujishima, Y. & Wakao, S., 2005 May 1, In : IEEE Transactions on Magnetics. 41, 5, p. 1700-1703 4 p.

Research output: Contribution to journalArticle

7 Citations (Scopus)
2004

An optimal design of interior permanent magnet synchronous motor for the next generation commuter train

Fujishima, Y., Wakao, S., Kondo, M. & Terauchi, N., 2004 Jun 1, In : IEEE Transactions on Applied Superconductivity. 14, 2, p. 1902-1905 4 p.

Research output: Contribution to journalArticle

34 Citations (Scopus)

Field-weakening scheme combined with saturated voltage control strategy

Yusivar, F. & Wakao, S., 2004 Dec 1, In : Proceedings of the IASTED International Conference on Modelling, Identification and Control. 23, p. 417-422 6 p., 412-146.

Research output: Contribution to journalConference article

1 Citation (Scopus)

Multiobjective design optimization of brushless permanent magnet motor using 3D equivalent magnetic circuit network method

Chun, Y. D., Wakao, S., Kim, T. H., Jang, K. B. & Lee, J., 2004 Jun 1, In : IEEE Transactions on Applied Superconductivity. 14, 2, p. 1910-1913 4 p.

Research output: Contribution to journalArticle

24 Citations (Scopus)

Rotor Design of Permanent Magnet Synchronous Motor for Railway Vehicle

Kondo, M., Kondo, K., Fujishima, Y. & Wakao, S., 2004 Sep 1, In : IEEJ Transactions on Industry Applications. 124, 1, p. 124-130 7 p.

Research output: Contribution to journalArticle

11 Citations (Scopus)

Theoretical analysis of return current harmonics in the inverter-controlled DC electric railcar

Ogawa, T., Kondo, K., Wakao, S. & Terauchi, N., 2004 Nov 29, 2004 IEEE 35th Annual Power Electronics Specialists Conference, PESC4. p. 711-716 6 p. (PESC Record - IEEE Annual Power Electronics Specialists Conference; vol. 1).

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

3 Citations (Scopus)