【作者】 张晶晶；

【导师】 温阳东；

【作者基本信息】 合肥工业大学 ， 电力系统及其自动化， 2003， 硕士

【摘要】 针对110KV，220KV高压架空输电线路中的中短线路，论文提出了将对称分量法和二次方程法相结合的改进的单端测距法的原理。此原理可较传统的测距方案提高测距的准确性，数字仿真表明该方法不受负荷电流、过渡电阻等影响，在高阻接地时，测距误差在1％以内。并且通过80C196KC单片机来实现此套方案，详细介绍了其软硬件设计，还有附加的测量、通讯功能的实现。更多还原

【Abstract】 The paper brings forward a plan of improved single-terminal fault location algorithm based on combined symmetrical component method and quadratic equation method , aiming at the middle and short 110kv,220kv overhead HV transmission line. This plan can better increase the accuracy of fault location than traditional plan. The digital simulation proves that the algorithm is not effected by the load flow and the transition resistor, and the error of calculation is within 1% in the circumstances of very high transition resistor ground short circuit. Also the paper realizes the plan through a chip microprocessor of 80C196KC and explains the software and hardware of it in detail.更多还原