Analysis of the Effect of Uncertain Renewable Sources on Static Voltage Stability by Using NR-Based DSOPF Model with Adapted IEEE- 30 Bus Test System

Abstract

This study examines the uncertainty effect ofrenewable energy resources on the static voltage stability thanksto modeling a specific area of Turkish electricity network by usingclassic IEEE 30-bus test system. For this purpose, the classic IEEE30-bus test system is adapted to the Turkish electricity network byusing new approach proposed in the study, which is based on the2015 Turkey real and reactive load curves. In this way, the classicIEEE 30-bus test system is considered a part of Turkish electricitynetwork. The analyses are performed on this model using Newton-Raphson (NR) solution by established three Optimal Power Flow(OPF) studies: dynamic-OPF study without renewable sources,dynamic-OPF study with renewable energy sources havingconstant power output, Dynamic-Stochastic Optimal Power Flow(DSOPF) study with uncertain renewable energy sources. To takeinto account the uncertainty effects, Weibull ProbabilityDistribution Function (PDF) using Turkey wind and solar data areused for each month. At the end of the study, it is observed thatthe integration of uncertain renewable energy sources into theTurkey electricity power system largely decreases both the yearlytotal generation cost and the reactive power generation.