Besides a brief review of the issues and the challenges related to the real-time optimization (RTO) strategies for the Fuel Cell Hybrid Power Sources (FCHPS), a new RTO strategy is proposed and analyzed here to find the optimal values of both fueling flow rates for the FCHPS under a dynamic load cycle. The optimization strategy to search and track the optimal value is based on the Global Extremum Seeking (GES) algorithm. In comparison with the Static Feed-Forward (sFF) RTO strategy, where both fueling rates are controlled by the FC current, the GES-RTO strategy adjusts the FC current with values given by two GES control schemes. Thus, the fueling regulators are controlled by two reference currents which are a bit different to FC current. The performance obtained with the GES-RTO strategy proposed herein is shown in comparison with the sFF-RTO strategy for constant load, but also for dynamic load profile. In last case both strategies will use a Load-Following (LF) control for the boost converter that interfaces the FC system with the DC bus. The performance will be estimated considering the following indicators: the generated FC net power, the fuel consumption efficiency, the FC system efficiency, and the total fuel consumption during a load cycle. The fuel economy for 6 kW FC system during a nominal load cycle of 60 s could be up to 40 l if the GES-RTO strategy is used instead of the sFF-RTO strategy.
Renewable and Sustainable Energy Reviews – Elsevier
Published: Aug 1, 2018
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera