半波输电作为一种超远距离、点对点、大容量输电方式在国内外受到广泛关注,完善半波输电的研究将丰富我国电力系统规划和运行的灵活性.介绍了半波输电在国内外的研究历史和现状,基于半波输电基本原理、技术优势的研究和分析,阐明了半波输电的基本输电特征和应用范围,并分析了半波输电应用所面临的过电压、潜供电流、安全稳定等难点问题,指出了半波输电在我国“西电东送”远距离输电中的应用前景.%Half-wave length transmission (HWLT) is a long distance, point to point, large capacity power baramission technology, which attracts more and more attention from electrical scholars. The research of HWLT will promote the flexibility of power system planning and operation. The history and current status of research are reviewed. Based on the analyis of HWLT's basic principle and advantage, ihe transmission characteristic and application range are presented. The difficulties in HWLT's application, such as over-voltage, secondary arc current, security and stability, are analyzed too. The application proposed of HWLT in long distance power transmission from west to east in China is outlined.
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