Zobrazeno 1 - 10 of 18 pro vyhledávání: '"Kazuya Omata"'
1
Estimation Methods of Short Circuit Current using Normal PMU Measurements and Field Testing
Autor: Kobayashi Takenori, Kazuya Omata, Yoko Kosaka, Suresh Chand Verma, Yoshiki Nakachi, Yoshihiko Wazawa, Yoshiki Takabayashi
Publikováno v: IEEJ Transactions on Power and Energy. 133:37-44
SUMMARY This paper proposes estimation methods for short circuit currents using phasor measurement unit (PMU) measurements (phasors). The methods follow the basic notion of representing the source side of a power system by an equivalent circuit with
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::110d15d4146fafeeaf8b92fcc4fd7cf3
https://doi.org/10.1541/ieejpes.133.37
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2
Optimal Generator Scheduling using Probabilistic Demand Scenarios
Autor: Kazuya Omata, Kobayashi Takenori, Yoshiki Murakami, Hideo Kusano, Hirofumi Takahashi
Publikováno v: IEEJ Transactions on Power and Energy. 131:271-276
We have developed a new method to determine an optimal generator scheduling using probabilistic demand scenarios. The demand scenarios are created statistically as a set of load curves by the past demand data. Covariance matrix is used to reconstruct
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::11e3b14c22ea1c36bc818be6888ce016
https://doi.org/10.1541/ieejpes.131.271
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3
Basic study of dropout by phase jump characteristic modeling of distributed generators in secondary system for trunk transmission system analysis
Autor: Shinya Naoi, Kazuhiko Kudo, Mamoru Suzuki, Yoshihiko Kataoka, Kazuya Omata, Hideyuki Kobayashi, Yasuhiro Noro
Publikováno v: Electrical Engineering in Japan. 172:27-37
The secondary systems are expressed by a reduced model in trunk transmission system analysis. Thus, multiple distributed generators in the secondary system are expressed by the reduced model. But by representing distributed generators by the reduced
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22fa06d1151551b8f633b027367da3b0
https://doi.org/10.1002/eej.20869
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8
Development of transient stability control system (TSC system) based on on-line stability calculation
Autor: Hiroji Ota, Y. Kitayama, K. Morita, H. Ito, Kazuya Omata, N. Fukushima, Yutaka Kokai
Publikováno v: IEEE Transactions on Power Systems. 11:1463-1472
This paper describes a new transient stability control system named the TSC system developed for application to the trunk power system of Chubu Electric Power Co. (CEPCO). The TSC system prevents wide-area power system blackout by shedding optimal ge
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::48b4a84584e124af7fadbba35816f434
https://doi.org/10.1109/59.535687
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9
Development of Transient Stability Controller System (TSC) Based on On-Line Stability Calculation
Autor: Hiroji Ota, Nobuo Fukushima, Yutaka Kokai, Morita Kenichi, Toshihiro Inoue, Hisanori Ito, Kazuya Omata
Publikováno v: IEEJ Transactions on Power and Energy. 115:75-84
A new transient stability controller system (TSC) based on on-line transient stability calculation has been developed. The TSC system prevents the power system from wide-area blackout by shedding generators optimally when a serious fault occurs. This
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::619785a05175e35984753caa0352dc39
https://doi.org/10.1541/ieejpes1990.115.1_75
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10
Short circuit current estimation using PMU measurements during normal load variation
Autor: Yoshiki Takabayashi, Kazuya Omata, Y. Wazawa, Y. Nakachi, Yoko Kosaka, T. Kobayashi, S. C. Verma
Publikováno v: ISGT Europe
This paper purposes a short circuit current estimation method using phasor measurement unit (PMU) measurements (synhcrophasors, hereafter called as phasors) of voltages and currents obtained during normal load variation. The method follows the basic
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4ff5bb325da18f7b95e5b1a66fb69f57
https://doi.org/10.1109/isgteurope.2012.6465725
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