基于浮地系统接地特征识别算法的直流漏电流传感保护模块性能参数测试

Performance Parameter Test of DC Leakage Current Sensing Protection Module Based on Grounding Feature Recognition Algorithm of Floating System

为了测试浮地系统的直流漏电流传感保护模块性能参数,判断直流漏电流传感保护模块是否存在异常,为此提出基于浮地系统接地特征识别算法的直流漏电流传感保护模块性能参数测试方法。建立基于长短期记忆网络模型,根据浮地系统接地特征辨识方法,识别接地信息中异常特征,然后由基于动作特性检测的直流漏电流传感保护模块性能参数测试装置,检测漏电流,采集电路里剩余动作电流信息,把电流信号变换为能够被ARM处理器接受的电压信号,实施采样后进行CPU运算。实验结果表示:所提方法对浮地系统接地信息异常特征的识别精度与识别效率显著,且对直流漏电流传感保护模块性能参数中的分断时间、漏电流测试精度极高,具备可应用性。

In order to test the performance parameters of DC leakage current sensing protection module of floating ground system and judge whether there is abnormality in DC leakage current sensing protection module,a performance parameter test method of DC leakage current sensing protection module based on grounding characteristic identification algorithm of floating ground system is proposed.Based on the long-term and short-term memory network model,the abnormal characteristics in the grounding information are identified according to the grounding characteristic identification method of the floating grounding system,and then the DC leakage current sensing protection module performance parameter test device based on the action characteristic detection detects the leakage current,and collects the remaining action current information in the circuit,and converts the current signal into a voltage signal that can be accepted by the ARM processor,then perform CPU operation after sampling.The experimental results show that the proposed method has significant recognition accuracy and efficiency for the abnormal characteristics of grounding information of floating ground system,and has high accuracy and applicability for the breaking time and leakage current in the performance parameters of DC leakage current sensing protection module.