PERFORMANCE OPTIMIZATION OF 132 KV ELECTRICAL POWER GRID STATION

Abstract

A case study of 132 KV grid station is under taken for improving the reliability, stability, and also for efficient operation of the power system. Electrical Transient Analyzer Program (ETAP) software is used to model the study which covers the three major aspects of power system such as Load Flow Analysis (LFA), Short Circuit Analysis (SCA), and Transient Stability Analysis (TSA). LFA identified under voltage and transformer overloading occurrences in the system. As a solution to these problems, a Static VAR Compensator (SVC) system was then incorporated in order to enhance voltage stability, decrease transformer loading and active and reactive power losses. SCA is used to assess the fault tolerance of the system by simulating different fault scenarios such as Line-to-Grounded (LG), Line-to-Line (LL), Double Line-to-Ground (LLG) and Three-phase (3Φ) faults. The results provided valuable information that enabled adequate understanding of fault currents and protective device coordination for safe and reliable system operation. The dynamic response of the system to disturbances, such as faults and recovery scenarios, will be assessed through TSA. The key parameters of the analysis were observed over a time interval of 60 seconds, which proved system stability under fault recovery, and provided important data for stability improvement in the future. This study not only overcame the current operational obstacles but also led to the optimization of the performance of substations.

Keywords : Power System Stability, Grid Station, Load Flow, Short Circuit, Transient Stability.