Anadolu University , Turkey September 22 nd 2008. Cost-effective PV sizing approaches; towards an Intelligent Building S. Kaplanis, E. Kaplani Mech. Engineering Dept., T.E.I. of Patra, Greece http://solar-net.teipat.gr www.teipat.gr/renewables. ABSTRACT.
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
Cost-effective PV sizing approaches; towards an Intelligent Building
S. Kaplanis, E. Kaplani
Mech. Engineering Dept., T.E.I. of Patra, Greece
an increased concern about the reliability of the PV performance,
to meet the loads with a pre-determined confidence level, at the minimum possible installed Peak power.
where, Ηm(nj) is the mean value of H(nj)1 , H(nj)2 etc.
H(nj) Є [Hm(nj) ± 2* σ Η(nj) ] (5)
H(nj) Є [Hm(nj) ± 2*d*σ Η(nj)] (6a)
H(nj) Є [Hm(nj) ± 2*sqrt(d)*σΗ(nj) ] (6b)
then, the expected energy deficit for that period is estimated by:
2*sqrt(d)*σ Η(nj) (7b)
while, the term d, introduced in eq(1) and (2), is higher than the correction term introduced in eq (11) and (12), as outlined above
PV plant Peak power compared with the conventional method vs d The solid line gives the results of the conventional method. The dashed line gives the results when Eq. 7a is used. The dotted line gives the results when Eq 8 is used, which is the usual case as the neighbouring days are inter-related in solar radiation..
The model is based upon the following:
(t2*σI(2) -t1*σI(1))*R1/4 +
Fig 7. Communication Network topology with the two sub-networks. Sensors are the pyranometer to provide the global solar radiation, the thermocouples
Loads QL,1 , QL,2 , etc. are assigned importance weights e1, e2 , etc., respectively.
Work has already began with the predictions based on the 2 and 3 morning measurements as earlier presented and the first results look very promising.