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

fYear

2013

fDate

11-13 Oct. 2013

Firstpage

1

Lastpage

8

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Electronics Engineering (ISEEE), 2013 4th International Symposium on

Conference_Location

Galati

Type

conf

DOI

10.1109/ISEEE.2013.6674326

Filename

6674326