Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Ritaka Nakamura"'
Autor:
Katsuhiko Fukuma, Ritaka Nakamura, Masahiko Tsukakoshi, Katsutoku Takeuchi, Makoto Matsushita
Publikováno v:
IEEJ Transactions on Industry Applications. 142:26-32
Publikováno v:
2015 IEEE Energy Conversion Congress and Exposition (ECCE).
This paper presents a modular multilevel cascade converter (MMCC) topology based on a resonant high-frequency link, which is applicable for transformerless medium-voltage motor drives requiring a wide range of operation frequency. The today's most pr
Autor:
Yoshihiro Ogashi, Ritaka Nakamura, Yusuke Ishimaru, Masahiko Tsukakoshi, Hiroyuki Masuda, Yuichi Tsuboi, Mitsuo Adachi
Publikováno v:
2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA).
It is an ideal to perform a combined test of an inverter and a motor for a smooth start-up at the site. There is a method to carry out a full load test without driving a machine. It is called “Back-to-back test”. It is possible to obtain 25MW out
Autor:
Mitsuhiro Kawamura, Yoshihiro Ohgashi, Tetsuya Kojima, Hiroyuki Masuda, Haruyuki Kometani, Ritaka Nakamura, Yuichi Tsuboi
Publikováno v:
2013 3rd International Conference on Electric Power and Energy Conversion Systems.
In large capacity motor drives, torque ripple evaluation is important in order to prevent problems such as unexpected lifetime reduction caused by mechanical resonance with the load. However, enormous cost and time are necessary to measure torque rip
Autor:
Ryoichi Kurosawa, Ryuichi Kano, Kunio Sekiguchi, Ritaka Nakamura, Harutoshi Ogai, Tetsumi Harakawa
Publikováno v:
IFAC Proceedings Volumes. 32:7161-7166
Recently, Steel Industry has faced serious demands of products quality improvement and drastic competition of cost reduction in production. Hot strip finisher mill, in particular, is the important process in steel industry, and has to satisfy product
Publikováno v:
Transactions of the Society of Instrument and Control Engineers. 34:666-673
Autor:
Ritaka Nakamura, Ryoichi Kurosawa
Publikováno v:
Journal of the Robotics Society of Japan. 13:1068-1072
Design of a Time-Optimal Digital Control System with Amplitude Limitation of a Manipulation Variable
Publikováno v:
Transactions of the Society of Instrument and Control Engineers. 23:123-128
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