Photovoltaic Distribution Generation Case Study of 30/11kV(Alskarait Substation)

Abstract

The Distribution Generation (DG), which is a new member of distribution systems, enhances system performance. The DG improves voltage profiles, reduces real power loss, increases the system capacity and reliability. It is intended to boost the infrastructure in an environmentally friendly manner in comparison to Conventional power sources. Achieving the aforementioned benefits requires installing DGs of appropriate capacity in appropriate location. The ultimate goal of this work is to meet expected load demands for the next ten years in Alskerat (Misurata substation) by means of a photovoltaic (PV) DG system. While PVsyst software was used to identify the type and number of PV modules and inverters, and  NEPLAN software has been used to analyze and simulate the work of the PV system. The current loads in the Alskerat power station are 18 MW and the expected loads for the next ten years will be approximately 38 MW calculated by load growth formula rate. The increasing of generating capacity of 20 MW was done by placing an electric power production station using renewable energies, which are the photovoltaic modules. The results of this attempt show an improved voltage profile of the grid and overcome to voltage drop problem while increasing load. From the results, the voltage drop that was addressed to the value 26.89 kV has been improved to a normal 30 kV after connecting the photovoltaic station. In addition, a cost-effect analysis in this work illustrates an advantage for PV systems over Conventional systems.