CAJ | 학술논문

阐述了半波长交流输电线路的运行特性,给出了其沿线电压、电流的分布规律。通过建立简化的输电线路电磁耦合模型,给出了理想半波长交流输电线路的潜供电流及弧道恢复电压的表达式。研究了线路传输功率、人工调谐网络、线路长度等对潜供电流与恢复电压的影响,结果表明半波长交流输电线路潜供电流与恢复电压分布规律与常规线路截然不同。提出了基于快速接地开关的沿线非均匀优化配置方案,并仿真计算了潜供电弧的燃弧时间特性,给出了半波长交流输电线路的单相自动重合闸配合时序。
천술료반파장교류수전선로적운행특성,급출료기연선전압、전류적분포규률。통과건립간화적수전선로전자우합모형,급출료이상반파장교류수전선로적잠공전류급호도회복전압적표체식。연구료선로전수공솔、인공조해망락、선로장도등대잠공전류여회복전압적영향,결과표명반파장교류수전선로잠공전류여회복전압분포규률여상규선로절연불동。제출료기우쾌속접지개관적연선비균균우화배치방안,병방진계산료잠공전호적연호시간특성,급출료반파장교류수전선로적단상자동중합갑배합시서。
Half-wavelength alternating current transmission line（HWACTL） has been drawing attention all over the world due to its remarkable economical and technological advantages.In addition to introducing the operating characteristics of HWACTL,its voltage and current distribution is also discussed.Equations describing the secondary arc current and the recovery voltage of HWACTL are given through building up electromagnetic coupled model of transmission line.Furthermore,the impacts of transmission power,man-made tuning network and line length,etc.on the secondary arc current and the recovery voltage are investigated in comparison with typical short lines.The uneven optimal arrangements of high speed grounding switch（HSGS） along the transmission line are studied in order to cut down the secondary arc current and therefore shorten the arcing time.An optimized HSGS arrangement is proposed and validated with a dynamic secondary arc model in detail.Finally,the optimal time sequence for single-phase auto-reclosure scheme of HWACTL with HSGS is put forward.