کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1508429 993972 2007 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Numerical analysis of the AC losses of 500-m HTS power cable in Super-ACE project
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Numerical analysis of the AC losses of 500-m HTS power cable in Super-ACE project
چکیده انگلیسی

The alternating current (AC) losses of 500-m high-TC superconducting (HTS) power cable in Super-ACE project are calculated by using an electric-circuit model. The cable core is consisted of a former (copper-stranded wire conductor), HTS conductor (Ag/Bi-2223 tapes, 1 layer), electrical insulation (LN2-impregnated laminated paper), HTS shield (Ag/Bi-2223 tapes, 1 layer) and protection (copper-braided wire). Numerically calculated AC loss (the total loss) is obtained by a sum of the self-field loss and external-field loss (hysteresis losses) consumed at the HTS conductor and HTS shield, the ohmic loss caused by a resistance of copper of the former and protection, and the eddy-current loss caused by an axial field at the former. The calculations are compared with experimental results measured by a calorimetric method. The calculations are almost equal to the measurements at wide transport-current range. At transporting 1 kArms to the cable, the calculation indicates that the total loss of 1.29 W m−1 (the measurement is 1.3 W m−1) is obtained by a sum of 0.89 W m−1 as the self-field loss, 0.32 W m−1 as the external-field loss, 0.06 W m−1 as the ohmic loss and 0.02 W m−1 as the eddy-current loss. On the other hand, Central Research Institute of Electric Power Industry (CRIEPI) has estimated that the AC loss is obtained by a sum of 0.5 W m−1 consumed at the HTS conductor and HTS shield as the hysteresis loss, and 0.8 W m−1 consumed at the former as the eddy-current loss. The author’s result contradicts CRIEPI’s estimation. It is considered that the difference is caused by an overestimation of the axial field at the former in CRIEPI’s loss calculation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cryogenics - Volume 47, Issue 2, February 2007, Pages 94–100
نویسندگان
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