Real-time monitoring of solar photovoltaic systems...
Transcript of Real-time monitoring of solar photovoltaic systems...
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SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of
Singapore (NUS) and Singapores National Research Foundation (NRF) through the Singapore Economic Development Board (EDB). 1
Real-time monitoring of solar photovoltaic
systems, integrated with energy meteorology
Andr NOBRE, Mark KUBIS, Thomas REINDL
Solar Energy Research Institute of Singapore (SERIS)
NI Week Energy Technology Summit, National Instruments
8 August 2012
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SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of
Singapore (NUS) and Singapores National Research Foundation (NRF) through the Singapore Economic Development Board (EDB). 2
Presentation outline
About SERIS
Solar photovoltaics (PV) systems research
Research project on irradiance forecast
Research project on PV system performance analysis
Demo
System conceptualization and design
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SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of
Singapore (NUS) and Singapores National Research Foundation (NRF) through the Singapore Economic Development Board (EDB). 3
SERIS Solar Energy Research Institute of Singapore
Founded in 2008; focuses on
applied solar energy research
Part of the National University
of Singapore (NUS)
Rapid growth (now > 150 staff
and > 6000 m2 of space)
> USD 30 million investment
into laboratories
Focuses on PV R&D (cells,
modules, systems)
Two R&D pilot lines: Si wafer
solar cells, Si thin-film solar
cells in class 10,000 cleanroom
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SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of
Singapore (NUS) and Singapores National Research Foundation (NRF) through the Singapore Economic Development Board (EDB). 4
To make solar power a cost-effective
and trusted source of electricity in
South-East Asia through:
Increasing availability through
designing high-performing solar
systems (locations, components,
layout)
Increasing reliability through close
monitoring and remote controlling of
solar power systems
Increasing predictability through
forecasting irradiance and solar
power generation several hours in
advance
Impression of MW-scale
PV system
Mission and R&D goals Solar Energy Systems Cluster
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SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of
Singapore (NUS) and Singapores National Research Foundation (NRF) through the Singapore Economic Development Board (EDB). 5
PV systems operation Challenges of tropical locations
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SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of
Singapore (NUS) and Singapores National Research Foundation (NRF) through the Singapore Economic Development Board (EDB). 6
REAL TIME
Solar PV systems research Holistic approach for PV electricity generation
INPUTS
Meteorological parameters
PV generated electricity
OUTPUTS
Irradiance forecasts
PV electricity generation
forecasts
Meteorological & PV systems
monitoring stations Development of forecasts &
now-casts algorithms
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SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of
Singapore (NUS) and Singapores National Research Foundation (NRF) through the Singapore Economic Development Board (EDB). 7
Inputs $1.3M irradiance forecast research
5x5 km spatially resolved irradiance network
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SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of
Singapore (NUS) and Singapores National Research Foundation (NRF) through the Singapore Economic Development Board (EDB). 8
30 systems @14 sites (~20% of the installed PV capacity in Singapore)
Inputs $1.3M PV systems monitoring research project
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SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of
Singapore (NUS) and Singapores National Research Foundation (NRF) through the Singapore Economic Development Board (EDB). 9
cRIO-9073/4/5 controllers
C-series modules for analogue
and RTD readings
3G router, with live
transmission of data (to SERIS
PV Systems Monitoring
Laboratory)
Automatic daily data download
routines
Time synchronization with time
server (150 ms)
Inputs Meteorological stations & PV systems monitoring stations
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SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of
Singapore (NUS) and Singapores National Research Foundation (NRF) through the Singapore Economic Development Board (EDB). 10
Inputs Example of SERIS remote meteorological & PV systems
monitoring stations
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SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of
Singapore (NUS) and Singapores National Research Foundation (NRF) through the Singapore Economic Development Board (EDB). 11
Inputs Hardware selection importance of NI robustness in the tropics
60 C
30 C
To-date: >99.7% data availability from SERIS
multiple monitoring stations
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SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of
Singapore (NUS) and Singapores National Research Foundation (NRF) through the Singapore Economic Development Board (EDB). 12
Outputs Goals and expected outcome of research projects
Irradiance forecasting model in several time horizons
Spatially resolved, island-wide PV power output forecast model
Automated software for fault detection of PV systems
Visualization software for user & service/utility levels
Increase solar
electricity predictability
Enhance total PV
system reliability
Thus reducing solar
electricity cost
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SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of
Singapore (NUS) and Singapores National Research Foundation (NRF) through the Singapore Economic Development Board (EDB). 13
Demo
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SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of
Singapore (NUS) and Singapores National Research Foundation (NRF) through the Singapore Economic Development Board (EDB). 14
Distribution of stations in each quadrant
Assignment of station IDs according to
software implementation
Division of island into quadrants of 5x5 km
System conceptualization and design Preparation of system design
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SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of
Singapore (NUS) and Singapores National Research Foundation (NRF) through the Singapore Economic Development Board (EDB). 15
System conceptualization and design System overview
Central Monitoring Station (CMS) Remote Monitoring Stations
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SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of
Singapore (NUS) and Singapores National Research Foundation (NRF) through the Singapore Economic Development Board (EDB). 16
System conceptualization and design Central Monitoring Stations (CMS) Administrative services
Remote stations status summary
Current remote stations IP
addresses lookup table
Remote diagnostic utilities
Upload/download data tables to
the NSR* database
Alarms, e-mails, SMS *NSR: National Solar Repository of
Singapore (www.solar-repository.sg)
http://www.solar-repository.sg/http://www.solar-repository.sg/http://www.solar-repository.sg/
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SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of
Singapore (NUS) and Singapores National Research Foundation (NRF) through the Singapore Economic Development Board (EDB). 17
System conceptualization and design Central Monitoring Stations (CMS) User services
Remote stations fast data server
Weather data with statistics and
graphs
Daily, monthly, yearly, archived
data in Excel format
Long term historical data with
display and processing software
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SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of
Singapore (NUS) and Singapores National Research Foundation (NRF) through the Singapore Economic Development Board (EDB). 18
System conceptualization and design Data communication with remote stations
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SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of
Singapore (NUS) and Singapores National Research Foundation (NRF) through the Singapore Economic Development Board (EDB). 19
Central Monitoring Station (CMS) Main software modules
Remote station configuration
database
Auto download scheduler and
remote stations status
TCP server heartbeat and slow
data receiver
Message management and re-
direction
Slow data processing and
logging
Automatic data downloader
Remote control and diagnostic
Data verification & limits testing
Database interface
Fast data processing
Alarms dispatch
SNTP time client
Local and remote errors handler
SNTP time server
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SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of
Singapore (NUS) and Singapores National Research Foundation (NRF) through the Singapore Economic Development Board (EDB). 20
Communications flow Types of interaction between remote and central monitoring stations
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SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of
Singapore (NUS) and Singapores National Research Foundation (NRF) through the Singapore Economic Development Board (EDB). 21
Remote monitoring stations Main software modules
Data acquisition
Data logging
Remote control
Heartbeat transmission
Time synchronization
System monitoring &
watchdog
FTP file transfer
Fast data sender
(DataSocket)
Slow data sender
(TCP)
Smart data buffering and
auto download
Error logging and
reporting
System events logging
National Instruments - CompactRIO Embedded Controller
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SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of
Singapore (NUS) and Singapores National Research Foundation (NRF) through the Singapore Economic Development Board (EDB). 22
Remote monitoring stations LabVIEW block diagram
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SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of
Singapore (NUS) and Singapores National Research Foundation (NRF) through the Singapore Economic Development Board (EDB). 23
Time synchronization
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SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of
Singapore (NUS) and Singapores National Research Foundation (NRF) through the Singapore Economic Development Board (EDB). 24
Memory and disk usage One month record
Dis
k F
ree [M
B]
Time
Me
mo
ry F
ree
[MB
]
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SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of
Singapore (NUS) and Singapores National Research Foundation (NRF) through the Singapore Economic Development Board (EDB). 25
Thank you for your attention!
Andr NOBRE [email protected]
Mark KUBIS [email protected]
More information
www.seris.sg
mailto:[email protected]:[email protected]