Maximising PV Power Generation Life-time

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Monitoring
Automatic detection of performance failures
Diagnosis of PV systems
Jonathan Leloux
Workshop PV CROPS, April 2, 2014, ELIA, Brussels
WebPV = Spin-off company (PVCROPS – UPM)
Core business: PV performance assessment and data analyses
Monitoring
PV performance?
Commercial
Services
Business
model
R&D
PV CROPS - Workshop April 2 , 2014 – UPM - WebPV
Scientific
background
2
Monitoring data analized by UPM - WebPV
BIPV: 25000 installations; PV Plants: 100 MW
10.000 instalaciones
288 analizadas
34
validación
detector
3
Analyses of 10,000 BIPV systems in Europe:
BIPV systems perform 15% below quality standards (in average)
Performance Ratio (PR)
- Mean value: 76%
Performance Index (PI)
-Mean value: 85%
4
We identified the main differences
in performance between PV systems
5
State of the art of PV modules:
Real power = (Contractual power – 5%)
Majority of PV modules
- Important manufacturers
- xSi technology
- No correlation found between
origin and performance
Very good PV modules
-xSi modules with
positive tolerances
-HIT modules
Poor quality PV modules
- Small manufacturers
- CIS modules
6
Results on BIPV in North of Europe
SIMILAR TO Results on PV plants in South of Europe
PV Module
(Hidden names)
PV1
PV2
PV3
PV4
PV5
PV6
PV7
PV8
PV9
P (%)
[Statitics on BIPV]
-6.4
-4.6
-10.7
-1.3
-6.1
-2.9
-2.1
-4.2
-6.4
P (%)
[In-field Meas.]
-7.1
-3.1
-12.3
-2.1
-4.7
-5.2
-2.2
-3.2
-6.6
Diff (%)
0.7
-1.5
1.6
0.8
-1.4
2.3
0.1
-1.0
0.2
7
Orientation distribution of BIPV systems and related energy losses
8
Parameterization of energy losses due to orientation
9
Data Monitoring:
Different systems … and costs
Material
Measurement
Frequency
Error
(%)
Cost
(€)
Manual
1/month
0.5%
0€
Accumulated
energy
Remote
1/10 min,
1/h,
1/day
0.5%
50-100
€/year
Output Power,
Current, Voltage,
Others,…
(DC+ AC)
Manual,
Remote,
Internet,
Inexistent
1/10 min,
1/h,
1/day
Never
1-10%
0-50
€/year
Data
Meter
Smart meter
Inverter
10
Automatic fault detection procedures:
Performance Ratio (PR) vs Performance to Peers (P2P)
11
Performance to Peers (P2P)
Artificial Neural Network (ANN) of BIPV systems
Delta Latitude:
X1
Delta Longitude:
X2
Delta Tilt:
Y
Delta Orientation:
Z
Radio (r)
r
P2P 
E prod (T )
Eref (T )
12
PR vs P2P (hourly data)
13
PR vs P2P (daily data)
14
PR vs P2P (monthly data)
15
Fault detector based on P2P variations
 Proper functioning
 Failure detected
16
Grid-inverter problems
Time (min) during a day
17
Excessive soiling
Time (weeks)
18
PV modules aging
Time (months)
19
Quantification of energy losses due to failures (%)
Installation
Detected failures
Energy losses (%)
211069313
1
0.10
211228133
1
0.10
211069307
1
0.10
210287006
1
0.10
210225602
1
0.12
210287091
3
0.17
211338662
1
0.24
211263097
2
0.33
210424083
13
1.13
211069267
19
2.81
211338680
17
2.82
210287089
30
3.01
211069304
24
3.09
211069276
35
5.64
20
And what if the client wants a Performance Ratio anyway?
We provide accurate solar irradiation data!!! (from PV systems )
21
Software implementation of web services
Software-Internet
User
Database (MySQL)
Monitoring data
Stored data
Web Service
(JSON)
Detected
failures
Analyses
results
Storage
Analysis
Engine (PHP)
Currently in our dabase: 55 GB
22
3D shading simulations
Data analyses for PV plants operators and investors
24
Patents (3 filed at the moment… more coming)
Método de detección automática y diagnóstico de fallos de operación en
instalaciones solares fotovoltaicas distribuidas, basado en la comparación
de sus producciones de energía
J. Leloux, L. Narvarte, E. Lorenzo, R. Moretón
Instituto de Energía Solar – Universidad Politécnica de Madrid, Spain
March 2014
Método para la detección automática de fallos en el funcionamiento de
sistemas fotovoltaicos centralizados para la puesta en práctica del mismo
R. Moretón E. Lorenzo, L. Narvarte, J. Leloux
Instituto de Energía Solar – Universidad Politécnica de Madrid, Spain
March 2014
Procedimiento de evaluación de pérdidas energéticas provocadas por
sombras proyectadas sobre paneles solares fotovoltaicos
J. Robledo, J. Leloux, E. Lorenzo
WebPV, Spain
March 2014
25
Scientific publications (8 at the moment… more coming)
Automatic fault detection on BIPV systems without solar irradiation data
J. Leloux, L. Narvarte, A. Luna, A. Desportes
29th European Photovoltaic Solar Energy Conference and Exhibition, Amsterdam, 2014.
A free real-time hourly tilted solar irradiation data Website for Europe
J. Leloux, L. Narvarte, L. González Bonilla
3D simulation of complex shading affecting PV systems taking benefit from the power of graphics cards developed for the video game industry
J. Robledo, J. Leloux, E. Lorenzo
A novel method to diagnose BIPV performance failures proven on 10,000 BIPV systems in Europe
Jonathan Leloux, L. Narvarte, A. Luna, A. Desportes
Intersolar Conference, Munich, 2014.
Automatic detection of PV systems failures from monitoring validated on 10,000 BIPV systems in Europe
J. Leloux, L. Narvarte, A. Luna, A. Desportes
Review of the performance of residential PV systems in France
J. Leloux, L. Narvarte, D. Trebosc.
Renewable and Sustainable Energy Reviews, Elsevier, 2012.
Review of the performance of residential PV systems in Belgium
Renewable and Sustainable Energy Reviews, Elsevier, 2012.
Performance Analysis of 10,000 Residential PV Systems in France and Belgium
26th European Photovoltaic Solar Energy Conference and Exhibition, Hamburg, 2011.
26
Contact
Jonathan Leloux
Email
[email protected]
Móvil
(+34) 61 68 556 69
Skype
jonathan.leloux.solar
Website
www.webpv.net
LinkedIn
www.linkedin.com/in/jonathanleloux
27

Maximising PV Power Generation Life-time

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