The invention belongs to the field of fault arc detection of an aviation power distribution system, and relates to an arc fault detection method based on edge calculation, which comprises the following steps that: an arc detection terminal acquires current information in a circuit in real time, judges whether various current characteristics exceed respective current characteristic threshold values or not for each current period, and determines that the current period is an arc period if the current characteristics exceed respective current characteristic threshold values. Whether the arc period cumulant in one moving time window exceeds a set threshold value or not is judged, if yes, an arc fault occurs, and an arc fault alarm and current data in one moving time window are reported to an arc detection far end. And the arc detection far end performs arc identification, reports arc fault alarm information to the upper computer if an arc fault is identified, and issues an arc protection command to the arc detection terminal. And the arc detection terminal performs arc fault protection. According to the technical scheme, the high arc detection rate is achieved, meanwhile, interference of nonlinear loads and the like is reduced, and the false alarm rate is reduced.
本发明属于航空配电系统故障电弧检测领域,涉及一种基于边缘计算的电弧故障检测方法,包括:电弧检测终端实时采集电路中的电流信息,对每个电流周期,判断多种电流特征是否超过各自电流特征阈值,若超过则该电流周期为电弧周期。判断一个移动时间窗口内的电弧周期累积量是否超过设定的阈值,若超过则发生了电弧故障,并将电弧故障报警和一个移动时间窗口内的电流数据上报给电弧检测远端。电弧检测远端进行电弧识别,若识别存在电弧故障则将电弧故障报警信息上报给上位机,并将电弧保护命令下发给电弧检测终端。电弧检测终端进行电弧故障保护。本发明技术方案在具有较高的电弧检测率的同时,降低了非线性负载等的干扰,降低了误报率。
Arc fault detection method based on edge calculation
一种基于边缘计算的电弧故障检测方法
06.02.2024
Patent
Elektronische Ressource
Chinesisch
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