MODELING, SIMULATION AND ANALYSIS OF THE OPERATING MODES OF LONG TRANSMISSION LINES AND THEIR COMPENSATION BY FACTS SYSTEMS: PROJECTS DEVELOPMENT IN ALGERIA

Abstract

agriculture in the southern wilayas of Algeria in recent years, it has become imperative to enhance the electricity supply in this region. This can be achieved by connecting the network of the In Salah-Adrar-Timimoune Pole to the national interconnected network. The purpose of this article is to provide a comprehensive examination of the permanent stationary symmetric operating modes in order to investigate the operational circumstances of lengthy extra-high voltage (EHV) power transmission lines with a voltage of 400 kV and above. The computation is derived from the quadrupole equation that describe the behavior of long lines with dispersed constants. In these equations, the currents and voltages are dependent on the distance down the line.

This paper provides an analysis of the operational study and operating circumstances of the power network via 495 km transmission line (In Salah-Adrar-Timimoune, Algeria). The project operates at a voltage of 400 KV to meet the requirements of the extensive southern region. The study covers both high load and low load regimes of the active power transmitted in relation to the natural power of the line. This paper presents the flow profiles of voltage, current, and reactive power, together with the directions that emerge at the terminal ends of the line.

The primary objectives of these Extra High Voltage (EHV) systems are to preserve the voltage profile and enhance power transmission throughout extended transmission distances. Hence, a voltage regulation technique for extended power transmission lines. This study utilizes a shunt-type FACTS device known as the Static Var Compensator (SVC).