高压直流输电系统中的过负荷限制分析

摘要

This paper describes the principles of HVDC system overload limiter. It analyzes the various factors affecting the overload capacity and the action consequences of overload. Combining with the example of Yi-Hua HVDC line fault recorder diagram, the course of action of the overload limiter is interpreted. The overload operation precautions are introduced to ensure the safe operation of the equipments.%介绍了高压直流输电系统中的过负荷限制原理。分析了影响过负荷能力的各种因素及过负荷的动作后果，并以宜华直流线路故障为例，运用华新换流站极Ⅰ和极Ⅱ故障录波图，对过负荷限制的动作过程进行了解读，提出了高压直流输电系统过负荷运行时的注意事项，以保证设备的安全运行。