LOW-COST DISTRIBUTED MEASUREMENT STATION FOR POWER QUALITY MONITORING

Abstract: In the paper a low-cost measurement and control network for power quality monitoring is presented. The architecture is arranged on three hierarchical levels: the fieldbus, the intranet and the Internet. Particular attention has been paid to the lower level which represent the field level, based on the H8/3048F Hitachi microcomputer and linked to a VXIbus device by means of a suited, register based interface. The proposed network has been designed for industrial measurement applications. It can embody a number of analog signal conditioning circuits, processor and communication capabilities, to meet the industrial needs. In the paper, an application of proposed station to power quality monitoring is reported. Experimental results showing the system performance are also included in the paper