Miren T. Bedialauneta

Overhead conductor monitoring system for the evaluation of the low sag behavior

The paper describes a monitoring system for the evaluation of the low sag behavior of the overhead conductors in operating lines. The monitoring system measures the conductor tension and temperature and it also measures the wind speed to evaluate the load in the conductor due to wind. This system includes a methodology for the analysis of the measured data and the comparison of these data with the theoretical values obtained by mechanical calculation.

Factors that affect the sag-tension model of an overhead conductor

The sag-tension model of an overhead conductor in operation is analyzed. A monitoring system measures the conductor tension and temperature. With the measured data obtained in a pilot installation and considering the theoretical values obtained by calculation, the factors that affect the sag-tension model of an overhead conductor are analyzed.

Overhead line rating forecasting for the integration of wind power in electricity markets

Wind power has a significant impact on the operation of electricity markets in areas with high penetration of wind power. As the electricity market is planned some hours in advance, it is necessary to forecast the wind power. Besides, wind power forecasting techniques can be adapted for the overhead line rating forecasting. This can be useful for defining advanced strategies for grid operation and improve the wind power integration. This paper analyzes the similarities and differences between the wind power forecasting and the overhead line rating forecasting. Some overhead line rating forecasting experiences are described and the preliminary results of a pilot project are shown.

Wind speed forecasting in overhead lines for system operation

Wind power has a significant impact on the operation of power grids. As the operation is planned some hours in advance, it is necessary to forecast the wind power. Besides, wind power forecasting techniques can be adapted for the overhead line rating forecasting. This can be useful for defining advanced strategies for grid operation and improve the power integration. This paper describes several works carried out in the forecasting of the wind speed for the overhead line rating. Some of the methods used for the forecasting are implemented in a pilot line and the results are analyzed.