0
Research Papers

PV-Electrolyzer Plant: Models and Optimization Procedure

[+] Author and Article Information
P. Artuso

CIRPS-Interuniversity Research Centre for Sustainable Development, Sapienza-University of Rome, Via delle Sette Sale 29, 00184 Rome, Italypaola.artuso@uniroma1.it

F. Zuccari, A. Dell’Era, F. Orecchini

CIRPS-Interuniversity Research Centre for Sustainable Development, Sapienza-University of Rome, Via delle Sette Sale 29, 00184 Rome, Italy

The electrolyzer can work at a power 10% more than its nominal power. In fact, all commercial electrolyzers have this property, in particular, if the high power level is realized for short periods, as it actually happens when the electrolyzer is connected to a PV-plant.

J. Sol. Energy Eng 132(3), 031016 (Jun 29, 2010) (9 pages) doi:10.1115/1.4001673 History: Received September 24, 2009; Revised March 26, 2010; Published June 29, 2010; Online June 29, 2010

The work focused on the analysis of the connection between a photovoltaic (PV) plant and an electrolyzer for hydrogen production. On the basis of PV-plant and electrolyzer experimental data, the effectiveness of the models adopted in the simulation program has been verified in order to choose the best model and, eventually, modify some parameters. By running the simulations, the procedure to optimize the PV-plant and the electrolyzer combination has been established. In fact, the simulation results might be considered to size an electrolyzer as small as possible, which is able to exploit up to the maximum power actually produced by the PV-plant during a working year. This criterion allows minimizing the overall plant costs. Furthermore, the possibility of deleting the maximum power point tracker and the dc/dc converter has been analyzed. On the basis of the obtained results, this opportunity is preferable to avoid the energy losses in the power control system; and it is convenient even from an economic point of view, considering that the electronic device costs are comparable with the PV-plant ones.

Copyright © 2010 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

One day temperature variation

Grahic Jump Location
Figure 2

(a) Comparison between model and real data efficiency versus the radiation values; (b) parity plot

Grahic Jump Location
Figure 3

(a) Model and real data efficiency versus the radiation values. Ambient temperature range: 15–16°C; (b) parity plot.

Grahic Jump Location
Figure 4

(a) Model and real data efficiency versus the radiation values. Ambient temperature range: 25–26°C; (b) parity plot.

Grahic Jump Location
Figure 5

(a) Model and real data efficiency versus the radiation values. Ambient temperature range: 35–36°C; (b) parity plot.

Grahic Jump Location
Figure 6

r parameter trend versus the temperature

Grahic Jump Location
Figure 7

s parameter trend versus the temperature

Grahic Jump Location
Figure 8

t parameter trend versus the temperature

Grahic Jump Location
Figure 9

Direct connection

Grahic Jump Location
Figure 10

PV characteristic curve variation, increasing or decreasing the radiance G

Grahic Jump Location
Figure 11

Electrolyzer characteristic variation, increasing or decreasing the electrolytic cell number

Grahic Jump Location
Figure 12

Electrolyzer characteristic variation, changing the series-parallel connection

Grahic Jump Location
Figure 13

(a) The coupling voltage and (b) the PV-plant MPP versus the hours of a sample day

Grahic Jump Location
Figure 14

Voltage variation during the year

Grahic Jump Location
Figure 15

Temperature variation in a sample day (a) in summer and (b) in winter

Grahic Jump Location
Figure 16

Optimizing procedure diagram block

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In