Monitoring System for a Photovoltaic Installation
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Transcript of Monitoring System for a Photovoltaic Installation
7/25/2019 Monitoring System for a Photovoltaic Installation
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TUNISIA POLYTECHNIC SCHOOL
Supervised by: Meher CHAABEN
Lecturer
Elaborated by: Ahmed SAKKA
3rd year enineerin student! option:S"S#
Engineering Internship Presentation
1
Monitoring System For A
Photovoltaic Installation
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Plan
2
Project context
Project equipment
Design of the monitoring system
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Plan
3
Project context
Project equipment
Design of the monitoring system
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resen a on o e so arinstallation
4
Fig1. Synoptic schema of the solar installation
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Shortcoming o the e!isting "AS
5
The ata logging unit cannot sa!e the historical !alues of the solarirraiation
"a#oratory researches are #ase on the historical !alues of theP$P parameters
The ata logging unit lac%s &exi#ility
This &exi#ility in D'(s is highly require in a la#oratory )heremany i*erent approaches of research are carrie out
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Pro#ect s$eci%cations
+
De!elopment of a D'( capa#le of sa!ing the acquire ataeach one minute on aily log ,les-
These log ,les shoul #e a#le to #e rea #y .icrosoft Excel-
Design of a harmonious graphic interface that isplays clearlythe target parameters-
/ser shoul #e a#le !isuali0e the sa!e ata an the linechart of the measure parameters from the graphic interface
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Plan
Project context
Project equipment
Design of the monitoring system
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a a ac&' s oncar+
The chosen D' car is /(67318 for !arious reasons9
The input resolution of the /(67318 moule is 1+ #its-
The car is lin%e to P: #y /(6 port-
The full scale of the car;s 'D: is con,gura#le for eachchannel-
The car supports i*erential analog input channels-
The car pro!ies 2 analog output channels-
The sampling frequency is 58 <0= the maximumfrequency of the input signals is 25 <0 >(hannontheorem?
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Fig2. Screw terminal
assignments of the KUSB-
3108 boar
@
"ata ac&'isition ("A)*car+
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Programming sot,are
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The $'r$oses o having a$$ro$riatesot,are are-
'cquiring ata in the #ac%groun )hile processingin foregroun-
'cquiring ata at speci,e sampling rate-
De!eloping the graphic interface>monitoringAsa!ing?
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It uses a ata graphical programming language )herethe processing can #e controlle using #loc% iagramsan front panels-
De!elope programs are calle $irtual Instruments>$I?
It o*ers high7le!el functionalities esigne speci,cally
for measurement an automating applications-
It can create executa#le from any operational $I
La./IE0 123
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"T4L/ Lin5
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"i#rary of $irtual Instruments >$Is? pro!ie )ith the
/(6 moule
It gi!es programmers )or%ing in "a#$IEB the a#ility toaccess /(6 car
Fig3. !he role of "!-#$ #in%
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/I or solar irra+iation ac&'isition
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Fig). !he line chart of the collecte meas(res
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6e+'cing noise (har+,are*
1+
Biring the !oltage source of the sensor toanalog input channel using the i*erential
con,guration9 recommene #y /(6atasheet
'justing the full scale >'D:? of the use
channel for the irraiation sensor;s !oltagerange > 8 To 158m$?
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6e+'cing noise (sot,are*
1
Fig.* +lgorithm to eliminate fa(lty meas(res from the ac'(ire signal
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Ac&'iring tem$erat're sensorsignal
1
'nalog input ofthe D' moule
Fig,. !he role of conitioner circ(it
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"esign o the con+itioner
1@
!he maim(m c(rrent processe by the sensor 1m+Selecte c(rrent 0.*m+
Fig8. +mplifier circ(it for the conitionner
Stanar /in 1K
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"esign o the con+itioner
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Fig.!he inp(t signal of the operational amplifier
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Filtering stage
21
Fig10.low ass Filter 4Fc 0)567
Calc'lation o the c'to8re&'ency-
The gain o the%lter-
,here F is the re&'ency o /in
As F remains almost %! the %lter9s gain remains also%!
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The %nal voltage con+itioning circ'it
22
Fig11.!he oltage conitioning circ(it Fig12.!he carrie o(t circ(it
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6es'lt o the con+itioner
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Fig13.!he inp(t of the final circ(it presente on the same scale as
the inp(t of the circ(it witho(t filtering stage
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"ata logging
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Data logging consists on storing each 1 min theacquire ata in a log ,le ha!ing the corresponingate as name
The storing action consists on creating a ne) line in
TD.( ,le )here9the ,rst case is e!ote to the exact time of storage
the secon case is e!ote to the orer of the storeline
the other 3 cases are e!ote to store the threeacquire parameters
Bhen the ate changes another log ,le )ill #ecreate )ith the ne) ate as a ,lename
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"ata logging
25
Fig1&.+ part of a log file create by the eelope $9
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:ra$hic interace
2+
Fig1). !he eelope graphic interface
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Concl'sion
2
Presentation of the project context
Description of the use soft)are an har)are equipment
Design of the monitoring system part graphic interface
Easy implementation of algorithm to manage the use of energy
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2
Than5s or yo'r attention
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TUNISIA POLYTECHNIC SCHOOL
Supervised by: Meher CHAABEN
Lecturer
Elaborated by: Ahmed SAKKA
3rd year enineerin student! option:S"S#
Engineering Internship Presentation
Monitoring System For A
Photovoltaic Installation