Evaluation of voltage and current profiles and Joule losses for a half-wavelength power transmission line |
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| Affiliation: | 1. Department of Applied Materials and Optoelectronic Engineering, National Chi Nan University, Nantou, 54561, Taiwan, ROC;2. Center for General Education, National Chi Nan University, Nantou, 54561, Taiwan, ROC;1. Institute of Environmental Process, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, PR China;2. Kim Chaek University of Technology, Pyongyang, Democratic People''s Republic of Korea |
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| Abstract: | Half-wavelength lines (HWLLs) have been studied as an option to be applied to power transmission regarding line lengths around 2500 km for a 60 Hz frequency. The main advantage of this type of transmission line, which has not yet been put in commercial operation in any country, is the elimination of reactive compensation, which contributes to cost reduction if compared to a conventional ac transmission. This paper presents a demonstration of voltage and current magnitude profiles along the line, using phasors and graphic calculations. In addition, an algebraic expression for Joule losses is proposed, to be used in economical evaluation of a HWLL solution. |
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| Keywords: | Half-wavelength lines (HWLLs) Power transmission Very long distance power transmission |
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