Title :
Using numerical weather forecast to predict power losses on transmission lines
Author :
Baran, Ileana ; Leonida, Tudor ; Sidea, Dorian
Author_Institution :
Dept. Electr. Power Eng., Univ. Politeh. Bucharest, Bucharest, Romania
Abstract :
The paper presents the first version of a method developed to forecast resistive power losses associated to transmission lines. In the first stage the procedure computes the conductor temperature, taking into account a non-steady-state heat balance equation. The terms of the heat balance are evaluated using as input data the numerical weather forecast combined with GIS mapping of the line assets, and the day ahead hourly forecast of the power flow. The resulting conductor temperature is then used to correct the value of the electrical resistance and finally to evaluate the resistive power losses. The method was applied for two existing 400 kV transmission lines, and several forecasts obtained for the conductor temperature and specific power losses are presented.
Keywords :
electric resistance; geographic information systems; losses; numerical analysis; power engineering computing; power transmission lines; weather forecasting; GIS mapping; conductor temperature; electrical resistance; nonsteady-state heat balance equation; numerical weather forecasting; power flow forecasting; power loss prediction; resistive power loss forecasting; transmission lines; Corona losses; Joule´s losses; Leakage losses; Technical losses; Transmission network; short term losses forecasting; weather forecast;
Conference_Titel :
Electrical and Electronics Engineering (ISEEE), 2013 4th International Symposium on
Conference_Location :
Galati
DOI :
10.1109/ISEEE.2013.6674326
