MULTICHANNEL CLOCK SIGNAL MONITORING APPLIANCES FOR SMART GRID NETWORKS WITH SPEED-OPTIMAL PHASE-LOCKED LOOP

Abstract

The paper discusses a multichannel monitoring device with a speed-optimal phase-locked loop system, which, by performing simultaneous measurements of several clock signals against the reference one, processing and transmitting measurement results by an IP-network in real time, increases the accuracy and precision of providing time synchronization signals for SMART Grid energy system. Analytical expressions where established to determine the conditions under which in the optimal system of phase-locked loop has no influence on the transient process of limiting the periodic static characteristic of the phase discriminator. Experimental studies have confirmed meeting the norms of the European standard ETS 300 462-4 for the time parameters of the reference signal generated by the phase-locked loop system, which is optimal in terms of speed, and also demonstrated the effectiveness of the proposed implementation of the device for multi-channel monitoring of time synchronization signals for SMART Grid of power systems. References 12, figures 7.