Power system stability enhancement by PV distributed generation

Abstract EN

the present paper investigates the effect of penetration of photovoltaic generation (PVGs)
systems on the transient and small signal stability.

Recently interest in photovoltaic (PV)
power generation systems is increasing rapidly and the installation of large PV systems or
large groups of PV systems that are interconnected with the power system grid is accelerating
despite their high cost and low efficiency due to environmental issues and depletions of fossil
fuels.

Photovoltaic generators (PVGs) have significant impacts on the existing power systems,
these impacts may be either positively or negatively depending on many factors such as PVGs
location, size and inverter characteristics.

The eigenvalue analysis and the transient analysis
of the system are done without any PVGs penetration and with PVGs penetration and then the
results are compared.

The investigation is applied on IEEE-39 bus test system.

The stability
analysis is carried out using simulation program of power system analysis tool box (PSAT).