Implementation of algorithm for detection of single phase fault with electric arc on dsPIC30F4013 microcontroller

Considering that most faults in overhead power lines are transient, fast and reliable algorithms for determining types of faults are needed. Reliable algorithm allows design of adaptive system for improving service continuity by automatically restoring power to the line after a momentary fault. This paper describes the procedure for real-time adjustment of algorithm for detection of arc faults in overhead power lines. This adjustment refers to real-time implementation of algorithm on DSP microcontroller. Given the nature of the problem and strict requirements for testing algorithm in real experiment, procedure for testing hardware in simulation loop is developed. Hardware in the loop (HIL) technique is based on MATLAB/Simulink, NI CB-68LP data acquisition card and simplified simulation model of faults in overhead power lines.