Abstract
Renewable energy and its integration to power systems have shown promising results on environmental aspects of energy production. Retiring conventional electric machines and replacing them with inverter-based generations does cause a concern though if this transition affects the system stability. As we know, mass is more reluctant to changes in power system load as it has momentum and therefore inertia. Taking away the mass presents the problem of creating a system that is more prone to higher oscillations upon load and generation changes, especially if those changes are sudden, like a fault. This project aims to investigate the stability of a system through simulation using ETAP. We use the IEEE 14 bus system while introducing a single line to ground (SLG) fault. Using an Electrical Transient Analyzer Program (ETAP), a simulation is constructed to resemble the IEEE 14 bus configuration with some slight modifications. We also reference a number of published papers through IEEE to investigate confirmation of the inertia problem, as well as discover potential remedies.
Prior to introduction of Renewable Penetration, a system is shown to be stable during varying lengths of a fault. After introducing varying levels of PV penetration, we determine that PV penetration has a negative effect on system stability. The supporting scholarly articles bolster the findings of the simulation, and also investigate possible solutions to system stability.