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Efficiency Estimation of Synchronous Generators for Marine Applications and Verification With Shop Trial Data and Real Ship Operation Data
https://oacis.repo.nii.ac.jp/records/2198
https://oacis.repo.nii.ac.jp/records/21982288a5f5-0de8-4e20-8e20-bd7aad1e7ef9
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-09-15 | |||||
タイトル | ||||||
タイトル | Efficiency Estimation of Synchronous Generators for Marine Applications and Verification With Shop Trial Data and Real Ship Operation Data | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題 | Reactive power, Synchronous generators, Fuels, Estimation, Diesel engines, Synchronous generator, efficiency estimation, specific fuel consumption, marine propulsion | |||||
資源タイプ | ||||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
著者 |
Kifune, Hiroyasu
× Kifune, Hiroyasu× Zadhe, Mehdi Karbalaye× Sasaki, Hidetsugu |
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書誌情報 |
en : IEEE access p. 195541-195550, 発行日 2020-10 |
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抄録 | ||||||
内容記述 | Three methods were explored to estimate the efficiency for the conversion of mechanical power to electrical power using synchronous generators in ships at low power factors. Generally, the generator efficiency data is provided by manufacturers as shop trial data and is measured by operating generators under power factor of 0.8 and 1.0. However, the efficiency of synchronous generators is not measured under low power factor of less than 0.8. In practice, onboard generators occasionally operate at low power factor and it is desirable to clarify their characteristics for power system designers of large vessels. By substituting the shop trial data into the proposed efficiency estimation formulas, the generator efficiency at low power factor was extrapolated. To evaluate the validity of these methods, the fuel consumption characteristics of diesel engines as prime movers was focused. The estimation of the generator efficiency was indirectly validated using a statistical analysis of long-term observational data of the generator in operation. As a result, the efficiency estimation method based on a power loss mechanism gave the most reliable result among the three estimation methods. The root mean squared error of the calculated specific fuel consumption was 3.5 g/kWh, which is approximately 1.66 % error rate. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 21693536 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1109/ACCESS.2020.3033404 | |||||
権利 | ||||||
権利情報 | This is an open access article under a Creative Commons License(https://creativecommons.org/licenses/by/4.0/). | |||||
情報源 | ||||||
関連識別子 | 10.1109/ACCESS.2020.3033404 | |||||
関連名称 | Publisher's Version/PDF(Open Access) |