Smart Inverters and Controls for Grid-Connected Renewable Energy Sources
Abstract
This chapter describes the concept of smart inverters and their control strategies for the integration of renewable energy sources (RES) such as solar photovoltaic (PV), wind turbine generators, and fuel cell (FC) systems into the power grid. The necessity of an inverter in RES systems and the types of inverters according to their operational roles in grid-connected mode are described. Mathematical modeling of RES systems is described. The selection parameters criteria of the inverter, its control technique, and switching techniques are discussed. The role of smart inverters in renewable applications with the grid-support functions is reviewed. Three types of grid-interacting inverters are compared, and their control schemes are discussed. Various inner-loop controllers used at the primary control level are classified, and their operating methods are discussed. The advantages and disadvantages of the described inner-loop control techniques are summarized. The simulation diagram and results of a three-phase grid-connected solar PV system are shown in the chapter.
Publication Title
Advances in Control Techniques for Smart Grid Applications
Recommended Citation
Ali, M., & Thotakura, N. (2022). Smart Inverters and Controls for Grid-Connected Renewable Energy Sources. Advances in Control Techniques for Smart Grid Applications, 201-266. https://doi.org/10.1007/978-981-16-9856-9_8
