Power converters for hybrid renewable energy systems with hydrogen buffer storage: A short review

In order to cope with the intermittent character of the renewable energy sources (RES), hydrogen production and storage tend to be an attractive and efficient solution. This is because hydrogen has much higher specific energy than the classical storage devices such as batteries or supercapacitors. In hybrid RES with hydrogen buffer storage, power converters play an important role to guarantee stability and reliability. This paper starts with an overview of hybrid RES configuration including hydrogen buffer storage. Then, a short literature survey focused on power converters is provided in order to highlight their advantages, drawbacks, and remaining issues for these applications.