Gridcode compliances and Operational Requirements of Grid connected BESS-Reneweable Power Plants

Abstract

Energy is a crucial ingredient for economic development of any country. Renewables provides access to clean energy quickly with lower cost and stable energy prices, with increase in reliability and resiliency. The integration of RES to the utility grid raises more fascinating challenges in integration, operation and control, protection as numerous components (power electronic converters) and constraints are involved. Grid codes are the enablers of the energy transition era, also plays an important role in defining the boundary between the requirements of secure grid operation and receiving highest possible share of RES to achieve the cost efficient energy mix. In this paper we investigated the requirements to connect the Renewable Energy Sources plants to the utility grid considering different grid codes and international standards. A renewable plant controller is proposed at plant level in order to make renewable plants to compliant to the connected grid code standards. The DIGSILENT power factory software is used to model and simulate the operation of renewable power plants, along with Battery Energy Storage System. The simulation model is analyzed with different operating conditions of power grid, to validate the compliance of renewable plant controller. In addition overview of the various international standards are provided, focusing on operational and control requirements demanded to grid connected Renewable Energy Sources plants.