New approaches for data monitoring, analysis and management of rooftop based PV power plants (original) (raw)
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Data Management Infrastructure from Initiatives on Photovoltaic Solar Energy
Advances in Intelligent Systems and Computing
Photovoltaic solar energy is a renewable electricity generation resource with very low environmental impact. A photovoltaic installation can be implemented using a variety of brands and equipment models. This becomes a challenge in terms of data collection, storage and analysis for its effective correlation and further generation of information. This article describes a project which objectives are as follows to contribute to data management in the field of energy resources based on photovoltaic technologies from different manufacturers through a technological infrastructure for Data Management. The approach utilized include three different stages: (1) analysis of project-oriented technologies in the field of energy resources and sustainability, (2) design and development of an infrastructure for data management of photovoltaic panels from different manufacturers, and (3) data collection from the different suppliers that were installed. Two data collection proposals were designed based on the energy supplying companies (Enphase Energy and SMA Solar Technology) over a one-year term with around two million records. Data is managed through the cloud infrastructure offered by Amazon and a visualization system developed through open source software.
Renewable energy sources (RES) are regard as an important alternative for significantly contributing to the sustainable energy supply in the world. Photovoltaic (PV) systems generate electricity from solar radiation. They are one of the most emerging RES technologies due to their continuous technological progress and their constant cost reduction. Monitoring PV systems is necessary to provide information that allows their holders to maintain, operate and control these systems, reducing installations costs and avoiding unwanted electric power disruptions. This paper presents an overview of remote monitoring solutions for PV installations along with the main proposals, commercial products and international experiences proposed in the literature. The paper is focused on three main features: i) consumption of data measuring and recording devices, ii) high storage requirements for certain conditions of data logging frequency or historical data series register, and iii) proprietary software provided by solar manufacturers. Furthermore, a detailed review of cloud-based platform for monitoring of PV systems is present. This review focuses on real experiences based on following features: i) low consumption wireless sensors to gather real-time information, ii) extreme scalability of the system, iii) huge amount of information (real-time data and periodic reports) to process, store and publish, and iV) a set of open source e-services and web applications. Finally, a proposal of new architecture for isolated PV monitoring systems in Ecuador is described.
Roadmap to prepare distribution grid-tied photovoltaic site data for performance monitoring
2017 International Conference on Big Data, IoT and Data Science (BID), 2017
One of the key analytics conducted on a gridtied Photovoltaic (PV) system is the periodic monitoring of its performance. It is expected that with increased PV penetration into the distribution smart grid in the future, quality and integrity of the data required to conduct such analytics will be crucial. While data processing and management tools for smart grid in the literature use cloud, distributed file management and parallel processing, the latency and computation requirements specific to performance monitoring need more lightweight, descriptive methods. This paper provides a systematic roadmap to analyze data collected from a real distribution grid-tied 1.4MW PV power plant for completeness, consistency and integrity, with the objective of using it for performance monitoring. To ensure the data's integrity is not compromised, the distribution of processed data is compared with that of the raw data. This paper makes one of the first few attempts to provide a comprehensive approach for data scientists to clean and prepare grid-tied PV data for site-level performance monitoring.
Software for Monitoring a Grid Connected Photovoltaic Power Plant
Contemporary Materials, 2011
This paper presents the software products serving the monitoring system of the 10 kWp grid connected photovoltaic power plant in the Technical University of Gabrovo. Software products for monitoring meteorological and electrical operational parameters, electricity production and web-based database for the PV system have been developed. Information about the software development environment, programming stages and programs functionality is presented.
The Photovoltaic Monitoring Centre Portal: From Inception to Development and Maintenance
The Photovoltaic Monitoring Centre (PVMC), Universiti Teknologi MARA (UiTM) is a unit that serves as a source of information for the Malaysian Building Integrated Photovoltaic (MBIPV) systems performances. The objective is to monitor and collect data of MBIPV systems in Malaysia and hopes to become the PV system information centre nationwide. As one of the strategies to achieve its goal, a PVMC portal has been created. This portal keeps track of all the PV site information, type of system, nominal power, PV module inverter, commissioning date, PV service provider, mounting, building type and displays monthly final yield chart. The PVMC portal becomes a one-stop monitoring centre to keep track of the progress of PV based on global monitoring and analytical monitoring. The PVMC portal benefits the PV community as they can view current progress about the usage and energy production which can be accessed anywhere and everywhere. The PVMC portal is a web-based application which allows it to share knowledge all over. In summary, this paper describes the process of creating, developing and maintaining the portal.
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An innovative solar monitoring system has been developed. The system aimed at measuring the main parameters and characteristics of solar plants; collecting, diagnosing and processing data. The system communicates with the inverters, electrometers, metrological equipment and additional components of the photovoltaic arrays. The developed and constructed long working system is built on special data collecting technologies. At the generating plants, a special data logger BBbox is installed. The new monitoring system has been used to follow 65 solar plants in the Czech Republic and elsewhere for 175 MWp. As an example, we have selected 13 PV plants in this paper that are at least seven years old. The monitoring system contributes to quality management of plants, and it also provides data for scientific purposes. Production of electricity in the built PV plants reflects the expected values according to internationally used software PVGIS (version 5) during the previous seven years of ope...
On the Connectivity of PV Panels to the Grid–Monitoring Systems
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A photovoltaic system connected to the grid is continuously monitored in order to evaluate the performance and the efficiency of conversion. The monitoring system detects abnormal operations and power fluctuation in order to execute appropriate tasks. It gives the possibility to optimize control laws and to implement interconnection strategies. Moreover, it is used to evaluate the cost effectiveness of solar energy penetration.
Data acquisition system for photovoltaic systems performance monitoring
IEEE Transactions on Instrumentation and Measurement, 1998
In order to analyze the performance of photovoltaic (PV) systems, we have developed a real-time expert system based on a central microcomputer used as a microserver and can be easily consulted from different automatic stations. The developed system is able to ensure the monitoring, supervision, and control of PV systems installed over a wide area, on one hand, and to create a general PV systems database, on the other. This paper presents a design of a universal data acquisition system with available components and which is easily accessible through a server. The hardware and software configuration of the expert system are described. Performance of this system are also presented when applied on PV systems.
Designing a RDBMS for Storing and Managing the Usage of Photovoltaic Panels: Albanian Case
Journal of Educational and Social Research, 2015
In everyday life the production and broadcast of material goods, computer and management in global communication cannot be realized without an electrical power source, the output of which is associated with environmental and safety problems. Current methods for providing electricity departing from limited natural resources, such as oil, gas, coal, etc. Simultaneously every day we face not only with the increasing prices for them, but also the problem of environmental pollution, which brings their burning. Fortunately there is a solution, and it is the use of renewable energy sources, such as biomass, solar energy, wind power, etc. Because of the benefits obtained from their use on dozens of regions in the world are directed to the use of these resources, especially solar energy. This energy is collected through solar panels and back into thermal or electric energy. Systems that convert the energy of sunlight into electricity are called photovoltaic systems. In this paper we will focus on the structuring of data collection about technologies and parameters to use photovoltaic systems in Albania. In order that these data collected be managed with high efficiency, it is appropriate that they are stored in a DB. DB Design brings genuine analysis of the current situation, but the future forecast for our country can be done on its basis. So on the basis of the studying of the DB, can be judge the economic and ecological benefits that come from the use of solar energy. The consumer can judge the energy efficiency, technology used, methods of installation, etc. Responsible institutions can deal with completing the updates of data for the completion of a DB at the national level.