Power quality monitoring in distribution network using pseudomeasurement

Abstract

This paper introduces a method to monitor power quality in a large 33kV distribution network with minimal power quality recorders. This is achieved by using an intelligent driven application which is pseudo-measurement based, to approximate the bus voltages and currents at various busses in the network. Bus impedance matrix is manipulated by rewriting the nodevoltage equations for an n-bus power system. This technique is further incorporated with a logic algorithm called Adaptive Linear Algorithm (Adaline) to ensure the voltage and current has minimum deviation compared to the actual measurement at site. The technique developed in this paper can be utilized in power quality monitoring for a large area.

Review of power quality monitoring systems

“…Pseudomeasurments were also used for power quality monitoring in distribution networks as described by S. R. K. Kanaesalingam et al [17] whereby an intelligent application which is pseudo-measurement based was used in order to find the voltages and currents at various bus locations in the considered 33kV distribution network. This method could be used for analyzing large areas in order to identify the faults in the system, [17].…”

“…This method could be used for analyzing large areas in order to identify the faults in the system, [17].…”