The design of Portable Ship Power Grid Harmonic Analysis System based on USB

The increased application of electronic equipment on ships, increases the harmonic harm to the power system, and this can have a significant impact on the safety of the ship. Therefore it is very important to analyze the harmonic pollution on the power system accurately. The article proposes the use of LabVIEW, a powerful virtual instrument developing platform produced by National Instruments. The suitability of USB-6341 data acquisition card as a convenient tool in the harmonic analysis is emphasized for its portability, high sampling rate and multiple data collection channels.