Design of Visualization Interface for Transmission Congestions

Visualization has been extensively applied in many areas, especially for the management of massive data and the display interface area. However, the complexity of grid connections in a large-scale power system is a challenging issue. For an efficient power system operation, it is necessary for electrical engineers and operators to analyze huge amount of data. Additionally, providing real-time operating status and visualization to system operators is also significant. This work reviews different types of power system visualization techniques, including power-flow visualization, trend charts, pie chart, area chart, and warnings in colors. This work also developed a visualization interface that displays the transmission system congestions for N-0 steady state and N-1 contingency analyses. The developed visualization interface has been applied to the Taiwan power system by considering real system parameters and operating conditions, and the developed visualization techniques include the plot for displaying real-time transmission system operation, status warning, and N-1 system contingencies. The developed visualization interface helps system operators understand the real-time operating conditions and determine the potential schedules for generation and transmission systems.