کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11015683 | 1782157 | 2018 | 23 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Energy characteristics of a fixed-speed flywheel energy storage system with direct grid-connection
ترجمه فارسی عنوان
ویژگی های انرژی یک سیستم ذخیره سازی انرژی فایروال با سرعت ثابت با اتصال مستقیم شبکه
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کلمات کلیدی
سیستم ذخیره انرژی الکتریکی چرخان، بی نهایت متغیر، سرعت ثابت ماشین القایی، بهره وری،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی (عمومی)
چکیده انگلیسی
Flywheel energy storage systems (FESSs) store kinetic energy in the form of JÏ2â2, where J is the moment of inertia and Ï is the angular frequency. Although conventional FESSs vary Ï to charge and discharge the stored energy, in this study a fixed-speed FESS, in which J is changed actively while maintaining Ï, was demonstrated. A fixed-speed FESS has the advantage of being capable of direct grid-connection without requiring a power electronic interface. A prototype with an output power of several hundred watts and a charge/discharge period of several seconds has been developed and discharge/charge operations have been conducted while mechanically measuring the output energy Em from the flywheel and mechanical work Ec, to vary J. Theoretical analysis suggests a ratio of 2.2 for Em/Ec, and experimental values of Em/Ec show high reproducibility, approximately 1.8 and 2.7 in discharge and charge operations, respectively. The reason for the errors can be explained by the loss incurred in varying J.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy - Volume 165, Part B, 15 December 2018, Pages 701-708
Journal: Energy - Volume 165, Part B, 15 December 2018, Pages 701-708
نویسندگان
Junji Kondoh, Takuji Funamoto, Taisuke Nakanishi, Ryohei Arai,