**Preface to "Power Electronics Applications in Renewable Energy Systems"**

This Special Issue of *Energies*, "Power electronics applications in renewable energy systems", aims to publish promising and novel methods and techniques to maintain the stable operation of power grids with power electronics-based renewable resources. This issue can be categorized into the following three parts. 

	- A study to reduce the adverse effects of renewable energy sources in power systems through a control strategy and a novel structure of power electronic devices in renewable energy systems


	- Applied technologies of power electronic equipment in a power system, considering the variability of renewable energy resources


ƻ Other applications related to renewable energy resources 




**Gilsoo Jang**  *Special Issue Editor*

*Article*
