The markedly increased integration of renewable energy in the power grid is of significance in the transition to a sustainable energy future. The grid integration of renewables will be continuously enhanced in the future. According to the International Renewable Energy Agency (IRENA)

renewable technology is the main pathway to reach zero carbon dioxide (CO2) emissions by 2060. Power electronics have played and will continue to play a significant role in this energy transition by providing efficient electrical energy conversion

distribution

transmission

and utilization. Consequently

the development of power electronics technologies

i.e.

new semiconductor devices

flexible converters

and advanced control schemes

is promoted extensively across the globe. Among various renewables

wind energy and photovoltaic (PV) are the most widely used

and accordingly these are explored in this paper to demonstrate the role of power electronics. The development of renewable energies and the demands of power electronics are reviewed first. Then

the power conversion and control technologies as well as grid codes for wind and PV systems are discussed. Future trends in terms of power semiconductors

reliability

advanced control

grid-forming operation

and security issues for large- scale grid integration of renewables

and intelligent and full user engagement are presented at the end.