Search results for "Pv power"

showing 5 items of 5 documents

A Low-cost, Real-time Monitoring System for PV Plants based on ATmega 328P-PU Microcontroller

2015

This paper presents a real-time monitoring system for PV power plants based on a microcontroller Atmega328P-PU. The proposed system, whose performances can be relatively close to those achieved with commercial monitoring systems, is simple, low-cost and open source technology-based. In addition, a user interface, capable to communicate through a wireless network by using a standard communication protocol IEEE 802.15.1, is here presented. From the experimental tests described and discussed in this paper it is demonstrated that the proposed monitoring system provides, with adequate accuracy, all the information about the operating status of the PV plant, even during fault conditions.

EngineeringSIMPLE (military communications protocol)business.industryWireless networkMonitoring systemSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciFault (power engineering)MicrocontrollerSettore ING-IND/31 - ElettrotecnicaPV Plant real time monitoringEmbedded systemUser interfacebusinessCommunications protocolSettore ING-INF/07 - Misure Elettriche E ElettronichePv power
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Forecasting energy output of a solar power plant in curtailment condition based on LSTM using P/GHI coefficient and validation in training process, a…

2022

This study presents how to improve the short-term forecast of photovoltaic plant's output power by applying the Long Short-Term Memory, LSTM, neural networks for industrial-scale solar power plants in Vietnam under possible curtailment operation. Since the actual output power does not correspond to the available power, new techniques (Global Horizontal Irradiance - GHI interval division, P/GHI factor addition (P - Power)) have been designed and applied for processing errors and missing data. The prediction model (LSTM network, structure of hidden layers, number of nodes) has been developed by the authors in a previous work. In this new version of the model, the training technique is improve…

Settore ING-IND/33 - Sistemi Elettrici Per L'EnergiaLong short-term memory Curtailment Large scale solar power plant Forecasting PV power PV power plant Artificial intelligenceEnergy Engineering and Power TechnologyElectrical and Electronic EngineeringElectric Power Systems Research
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A new method for forecasting energy output of a large-scale solar power plant based on long short-term memory networks a case study in Vietnam

2021

Abstract This paper proposes a new model for short-term forecasting power generation capacity of large-scale solar power plant (SPP) in Vietnam considering the fluctuations of weather factors when applying the Long Short-Term Memory networks (LSTM) algorithm. At first, a configuration of the model based on the LSTM algorithm is selected in accordance with the weather and operating conditions of SPP in Vietnam. Not only different structures of LSTM model but also other conventional forecasting methods for time series data are compared in terms of error accuracy of forecast on test data set to evaluate the effectiveness and select the most suitable LSTM configuration. The most suitable config…

Scale (ratio)Computer scienceLarge scale solar power plant020209 energy020208 electrical & electronic engineeringEnergy Engineering and Power Technology02 engineering and technologySet (abstract data type)Mean absolute percentage errorElectricity generationSolar power plantArtificial IntelligenceStatistics0202 electrical engineering electronic engineering information engineeringLong short-term memoryElectrical and Electronic EngineeringTime seriesPV power plantForecasting PV powerEnergy (signal processing)Test data
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Dynamic reconfiguration systems for PV plant: Technical and economic analysis

2020

Solar plants suffer of partial shading and mismatch problems. Without considering the generation of hot spots and the resulting security issues, a monitoring system for the health of a PV plant should be useful to drive a dynamic reconfiguration system (DRS) to solve bottlenecks due to different panels’ shading. Over the years different DRS architectures have been proposed, but no suggestions about costs and benefits have been provided. Starting from technical subjects such as differences of the topologies driving the hardware complexity and number of components, this paper identifies the cost of DRS and its lifetime, and based on these issues it provides an economic analysis for a 6 kWp PV…

Control and OptimizationMonitoringComputer science020209 energyEnergy Engineering and Power Technology02 engineering and technologySettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciNetwork topologylcsh:TechnologySettore ING-INF/01 - Elettronica0202 electrical engineering electronic engineering information engineeringEconomic analysismedia_common.cataloged_instanceElectrical and Electronic EngineeringEuropean unionEngineering (miscellaneous)energy policies related to PV power plantsmedia_commonlcsh:TRenewable Energy Sustainability and the EnvironmentCase studieEnergy policies related to PV power plantmonitoring and case studiesEconomic analyseControl reconfiguration021001 nanoscience & nanotechnologyReliability engineeringSettore ING-IND/31 - Elettrotecnicaeconomic analysesenergy policies related to PV power plants; economic analyses; monitoring and case studiesShadingPv plant0210 nano-technologyEnergy (miscellaneous)Nominal power (photovoltaic)
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Photovoltaic plant array reconfiguration: Design of a new device

2014

An efficient strategy to improve unequally irradiated PV plants performances is based on the reconfiguration of the connections between the modules. In this paper, an algorithm, for this purpose conceived, is presented. Moreover, the design, realization and finally also the set up of a new reconfiguration system device is fully shown and discussed. The algorithm conceived simulates several possible series-parallel connections under varying irradiation conditions, and determines the optimal modules connection in order to get the maximum output power. In this way, the reconfiguration system may set up the reconfiguration strategy. The reconfiguration system prototype set up, basically consist…

EngineeringMicrocontrollerreconfiguration system devicepower system controlPV power systemSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciTVactuation systemtring PV modules irradiation conditionElectricityArduinounequally irradiated PV plant performanceconditioning systemNew devicehomogeneity conditionmismatch effectOperational amplifiermaximum output powernew device designTransducerpartial shading reconfiguration prototypebusiness.industryreconfiguration system prototype set upPhotovoltaic systemArrayControl reconfigurationControl engineeringoptimal module connectionVoltage measurementeries-parallel connection simulationMicrocontrollerphotovoltaic power systemATmega2560 microcontrollerpower system simulationControl systemacquisition systemmodule connection reconfigurationArduino Mega 2560control systembusinessphotovoltaic plant array reconfigurationreconfiguration strategy
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