DC-side high impedance ground fault detection for transformerless single-phase PV systems

2015 ◽  
Author(s):  
Gang Wang ◽  
Clifford C. Youn ◽  
Alex M. Stankovic
Keyword(s):  
Fault Detection ◽  
Single Phase ◽  
Pv Systems ◽  
High Impedance ◽  
Ground Fault ◽  
Ground Fault Detection

scholarly journals Design of Automatic Detection Model for Single-phase Earth Fault in Distribution Network

1970 ◽  
Vol 1 (1) ◽  
Author(s):  
Yang Fan
Keyword(s):  
Fault Detection ◽  
Single Phase ◽  
Distribution Network ◽  
Automatic Detection ◽  
Input Vector ◽  
Detection Accuracy ◽  
Detection Model ◽  
Earth Fault ◽  
Ground Fault ◽  
Ground Fault Detection

The current distribution network single-phase ground fault detection model knowledge expression is poor, its production process only based on the normal distribution network sample data, no single-phase ground fault data, did not make full use of a prior knowledge, resulting in low detection accuracy. The automatic detection model of single-phase earth fault of new distribution network is proposed. The fault characteristic vector is taken as the input vector, and the degree of matching between the input vector and the weight vector element is introduced as the second layer. The fault vector is used as the input vector, and the fault vector is used as the input vector. Node input, the second layer of the output as the third layer of the input, the model training, the output of the results of the distribution network is a single-phase ground fault detection results. The experimental results show that the proposed model has high detection accuracy. 

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