Current Source Reconstruction with Independent Component Analysis in Sensor Array Measurement of Multi-Conductor Current

摘要

This paper implemented a current reconstruction system based on independent component analysis and magnetic field sensors. In this paper both the normal approximation and interfered approximation of magnetic flux density generated by current carrying conductors and sensed by four biaxial TMR sensors are presented and discussed. The current in each conductor with and without interference was calculated based on the comprehensive independent component analysis algorithm. The error for both the simulated and numerical calculations results was within acceptable levels for protective devices proving the feasibility of our reconstruction system.