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A COMPREHENSIVE MONITORING SYSTEM FOR PHOTOVOLTAIC ARRAYS

Published on Jan 1, 2013
· DOI :10.2316/P.2013.798-053
Venkatachalam Krishnan3
Estimated H-index: 3
(ASU: Arizona State University),
Henry Braun4
Estimated H-index: 4
(ASU: Arizona State University)
+ 1 AuthorsAndreas Spanias26
Estimated H-index: 26
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Abstract
With increased adoption of renewable energy, more effective array management strategies are needed. Many arrays are located in remote locations, where faults within the array often go unnoticed and unattended for large periods of time. Technicians sent to rectify the faults must spend a large amount of time determining the location of the fault manually. Automated monitoring systems are needed to obtain the information about the performance of the array and detect faults. Such systems must monitor the DC side of the array in addition to the AC side to identify non catastrophic faults. In this paper, a prototype comprehensive monitoring system is presented for management of utilityscale PV installations. The system continuously monitors and logs the performance and condition of the array and provides a variety of data visualization and reporting functionality to the facility operator.
  • References (7)
  • Citations (1)
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References7
Newest
Published on Sep 28, 2012
Mahesh K. Banavar12
Estimated H-index: 12
(ASU: Arizona State University),
Andreas Spanias26
Estimated H-index: 26
,
Toru Takehara3
Estimated H-index: 3
Although the solar energy industry has experienced rapid growth recently, high-level management of photovoltaic (PV) arrays has remained an open problem. As sensing and monitoring technology continues to improve, there is an opportunity to deploy sensors in PV arrays in order to improve their management. In this book, we examine the potential role of sensing and monitoring technology in a PV context, focusing on the areas of fault detection, topology optimization, and performance evaluation/data...
Published on Mar 1, 2012 in ICASSP (International Conference on Acoustics, Speech, and Signal Processing)
Henry Braun4
Estimated H-index: 4
(ASU: Arizona State University),
Santoshi T. Buddha3
Estimated H-index: 3
(ASU: Arizona State University)
+ 4 AuthorsToru Takehara3
Estimated H-index: 3
Photovoltaics (PV) is an important and rapidly growing area of research. With the advent of power system monitoring and communication technology collectively known as the “smart grid,” an opportunity exists to apply signal processing techniques to monitoring and control of PV arrays. In this paper a monitoring system which provides real-time measurements of each PV module's voltage and current is considered. A fault detection algorithm formulated as a clustering problem and addressed using the r...
Published on May 29, 2010
Mohamed Zahran6
Estimated H-index: 6
(JazanU: Jazan University),
Yousry Atia5
Estimated H-index: 5
+ 1 AuthorsIhab El-Sayed2
Estimated H-index: 2
(JazanU: Jazan University)
The monitoring system in photovoltaic (PV) power plants is very important and urgent in some cases for analyzing, troubleshooting and in decision making issues. This paper proposes very simple, low cost, high reliability, and high precision PV monitoring system. The proposed system is composed of a laptop connected to very cheap microcontroller board via serial cable. All the sensors and actuators are emulated in a prototype board that interfaced to the microcontroller system. A graphical user i...
Published on May 1, 2008
Wlodzimierz Kolodenny5
Estimated H-index: 5
(Wrocław University of Technology),
M. Prorok6
Estimated H-index: 6
(Wrocław University of Technology)
+ 2 AuthorsRalph Gottschalg1
Estimated H-index: 1
(Northumbria University)
In this paper, a new approach to data acquired during monitoring of PV systems is proposed. It is based on modern informatics tools, like the commonly used XML or as well as new web services. The goal is to propose a universal data scheme (PVML) allowing analysis of the performance of a PV system of any type and size. Such an approach should be helpful in detection of faulty operation or even underperformance of the PV systems. The work has been carried out in the framework of the EC-funded Inte...
Published on Jan 1, 2006
E. Dirks1
Estimated H-index: 1
,
Ani M. Gole30
Estimated H-index: 30
,
T.S. Molinski1
Estimated H-index: 1
The performance of a solar photovoltaic array statically placed on a large urban building is analyzed. The design of a custom monitoring system is described which measures electrical quantities as well as internal panel temperatures and solar intensity. The system is capable of remote interrogation over the Internet. Data collected over a period of two years at twenty minute intervals is used to evaluate the peak and average performance of the array. Correlation of the data to the prevalent loca...
Published on Aug 1, 2004
Jay A. Kratochvil12
Estimated H-index: 12
,
William E. Boyson12
Estimated H-index: 12
,
David L. King31
Estimated H-index: 31
This document summarizes the equations and applications associated with the photovoltaic array performance model developed at Sandia National Laboratories over the last twelve years. Electrical, thermal, and optical characteristics for photovoltaic modules are included in the model, and the model is designed to use hourly solar resource and meteorological data. The versatility and accuracy of the model has been validated for flat-plate modules (all technologies) and for concentrator modules, as ...
Published on Aug 1, 1999in Technometrics2.09
Peter J. Rousseeuw52
Estimated H-index: 52
,
Katrien Van Driessen5
Estimated H-index: 5
The minimum covariance determinant (MCD) method of Rousseeuw is a highly robust estimator of multivariate location and scatter. Its objective is to find h observations (out of n) whose covariance matrix has the lowest determinant. Until now, applications of the MCD were hampered by the computation time of existing algorithms, which were limited to a few hundred objects in a few dimensions. We discuss two important applications of larger size, one about a production process at Philips with n = 67...
Cited By1
Newest
Published on Sep 1, 2015
Henry Braun4
Estimated H-index: 4
(ASU: Arizona State University),
Shwetang Peshin1
Estimated H-index: 1
(ASU: Arizona State University)
+ 4 AuthorsDevarajan Srinivasan2
Estimated H-index: 2
Electrical mismatch between modules in a PV array due to partial shading causes energy losses beyond the shaded module. This occurs because unshaded modules are forced to operate away from their maximum power point in order to compensate for the shading. Here we present an irradiance estimation algorithm for use in a mismatch mitigation system. Irradiance is estimated using measurements of module voltage, current, and back surface temperature. These estimates may be used to optimize an array's e...
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