Visualization and image analysis of power transmission network using mathematical morphology techniques

Abstract

Morphological decimination technique is proposed to visualize and analyze the power transmission network image. A 24 bus Reliability Test System is considered for this purpose. A graphical image of the network, with thickness of the lines proportional to their respective MVA capacity is created in two-dimensional discrete space. Based on ac load flow solution, another image is drawn which represents the power flow (in MW) between the buses. Proper scaling is done to represent the MVA capacity and the MW flow. Using mathematical morphology technique the spatially represented line flows, between the buses are decimated into nine categories. They are represented in different colors. This image which is obtained with different colors is superimposed on the image which is created with the MVA capacity of the network. For better visualization and to easily remember the color coding, it is futher regrouped into 3 categories. The second approach is to analyze the real power losses as it is one of the important parameter in the power system. The operators are interested to focus on the system which respect to the losses. An image is constructed such that the width of the lines is proportional to the MW losses for a modified IEEE 30 bus test system and it is decimated. The processed image will help the planner and operator to get a better visualization of the power system network and to analyze the same in terms of the behavior of the network.