An approximate methodology to verify the compliance of large photovoltaic power plants to system operator steady-state requirements

摘要

This paper proposes a methodology for the equivalent modeling of large photovoltaic power plants at the Point of Interconnection with the transmission/distribution network. The interest in such a methodology lays in the fact that recently Transmission/Distribution System Operators (TSOs/DSOs) have extended the requirements for the connection of renewable generation to their electricity networks beyond the only supply of active power, requiring ancillary services too. It is then a primary necessity for the Companies which operate in the market of large photovoltaic plants to have a simple but effective tool to verify the compliance of a proposed plant layout with specific TSO requirements (which vary from country to country) in order to support the bidding and preliminary design phase of the project.