Assessing the Integration of Large-Scale Solar PV to a Nine-Bus Power System

Abstract

Solar energy has numerous promising features which also includes CO2 reduction. The adoption of large-scale solar PV ensures that demand can be satisfied by utilising renewable energy and reduces the dependency on the conventional non-renewable energy resources. Bringing this energy to widespread consumers requires transmission medium. However, controlling and bringing the harvested energy to the homes and industries is a task which needs attention. According to the various researches, it is deduced that the implementation of large-scale solar PV will have a marked effect on the grid which may lead to instability. The main obstacle to implementation is the distribution and transmission of energy to the recipients. In this study, the efforts are put to design the large-scale solar PV suitable for Malaysia using Pvsyst designing algorithm and the designed LSS PV is studied in a power system analysis tool to analyse the potential difference variation in different buses when connected to the nine-bus power system. Three solar PV models were selected based on their efficiency; among them two best PV model were obtained by conducting PVSyst simulation. The power output respect to time obtained from the simulation is used as inputs for conducting steady state stability analysis on nine bus power system to understand the voltage fluctuations when the LSSPV is integrated to the power system.