U.S. Department of EnergyOffice of Scientific and Technical Information
Kerman Photovoltaic Power Plant R&D data collection computer system operations and maintenance
Abstract
The Supervisory Control and Data Acquisition (SCADA) system at the Kerman PV Plant monitors 52 analog, 44 status, 13 control, and 4 accumulator data points in real-time. A Remote Terminal Unit (RTU) polls 7 peripheral data acquisition units that are distributed throughout the plant once every second, and stores all analog, status, and accumulator points that have changed since the last scan. The R&D Computer, which is connected to the SCADA RTU via a RS-232 serial link, polls the RTU once every 5-7 seconds and records any values that have changed since the last scan. A SCADA software package called RealFlex runs on the R&D computer and stores all updated data values taken from the RTU, along with a time-stamp for each, in a historical real-time database. From this database, averages of all analog data points and snapshots of all status points are generated every 10 minutes and appended to a daily file. These files are downloaded via modem by PVUSA/Davis staff every day, and the data is placed into the PVUSA database.
- Authors:
- Publication Date:
- Research Org.:
- Endecon Engineering (United States)
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 95580
- Report Number(s):
- DOE/AL/82993-11
ON: DE95013805
- DOE Contract Number:
- FC04-92AL82993
- Resource Type:
- Technical Report
- Resource Relation:
- Other Information: PBD: Jun 1994
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 14 SOLAR ENERGY; PHOTOVOLTAIC POWER PLANTS; DATA ACQUISITION SYSTEMS
Citation Formats
Rosen, P B. Kerman Photovoltaic Power Plant R&D data collection computer system operations and maintenance. United States: N. p., 1994.
Web. doi:10.2172/95580.
Rosen, P B. Kerman Photovoltaic Power Plant R&D data collection computer system operations and maintenance. United States. https://doi.org/10.2172/95580
Rosen, P B. 1994.
"Kerman Photovoltaic Power Plant R&D data collection computer system operations and maintenance". United States. https://doi.org/10.2172/95580. https://www.osti.gov/servlets/purl/95580.
@article{osti_95580,
title = {Kerman Photovoltaic Power Plant R&D data collection computer system operations and maintenance},
author = {Rosen, P B},
abstractNote = {The Supervisory Control and Data Acquisition (SCADA) system at the Kerman PV Plant monitors 52 analog, 44 status, 13 control, and 4 accumulator data points in real-time. A Remote Terminal Unit (RTU) polls 7 peripheral data acquisition units that are distributed throughout the plant once every second, and stores all analog, status, and accumulator points that have changed since the last scan. The R&D Computer, which is connected to the SCADA RTU via a RS-232 serial link, polls the RTU once every 5-7 seconds and records any values that have changed since the last scan. A SCADA software package called RealFlex runs on the R&D computer and stores all updated data values taken from the RTU, along with a time-stamp for each, in a historical real-time database. From this database, averages of all analog data points and snapshots of all status points are generated every 10 minutes and appended to a daily file. These files are downloaded via modem by PVUSA/Davis staff every day, and the data is placed into the PVUSA database.},
doi = {10.2172/95580},
url = {https://www.osti.gov/biblio/95580},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jun 01 00:00:00 EDT 1994},
month = {Wed Jun 01 00:00:00 EDT 1994}
}