A MULTI-DSP-ARCHITECTURE FOR RAPID DETECTION OF SHORT CIRCUITS IN LOW VOLTAGE SYSTEMS

K. Kraft

Abstract

In order to detect short-circuits in low-voltage systems, a system was developed with several digital signal processors. The processors are housed on a DSP board, which is based on the VXIbus, and connected to one another by numerous communications pathways. These communications pathways allow for a high degree of flexibility and scalability. They are used to map the algorithmic structure on to the system. The system includes an interface board, which preprocesses, segments and distributes the data coming from the analogue-digital converters to the DSPs. This board generates a pulse with the segments, which determines the subsequent signal processing. As a result of the segmentation of the data flow, the 50 Hz fundamental wave of the voltage system also remains in the segments as a disruptive DC component, and as an approximately saw-toothed signal component after its elimination. Methods are presented by which these interference signal components can be eliminated using non-linear filtering

Keywords

short circuit detection, low voltage A/D – converter

Download

IMEKO-WC-2000-TC10-P266.pdf

DOI

-

IMEKO TC

TC10 - Measurement for Diagnostics, Optimization and Control

Back to the proceedings