An embedded microcontroller unit for PV module monitoring and fault detection

Borza, Paul and Kaplani, Eleni (2020) An embedded microcontroller unit for PV module monitoring and fault detection. In: 8th International Conference on Renewable Energy Research and Applications, ICRERA 2019. 8th International Conference on Renewable Energy Research and Applications, ICRERA 2019 . IEEE, ROM, pp. 557-562. ISBN 2572-6013

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Abstract

This paper presents the architectural lay-out and functional design details of a microcontroller embedded electronic monitoring system (e-EMS). According to the design, this unit is integrated into the PV module junction box. It can be scaled up to form part of a complex PV power plant control system. The communication topology follows a 3-tier structure. It uses two processors, one dedicated for data acquisition and the other for communication purposes. The e-EMS provides a complete set of data associated to PV module performance characteristic parameters, including current and voltage of the PV module and each sub-string of cells, operation of the bypass diodes along with the corresponding current and voltage measurements, PV temperature and environmental parameters. The sampling rate can be programmed in a large range from 1 to 65s along with the number of samples used for averaging signal values. The power output is determined every hour, as a basic output of the system. Comparison of the determined values with the expected ones when normalized to the PV operating conditions provides reliable information on deviation trends, the degree of degradation that the PV module experiences, while the analysis of the sampled data may identify the cells or modules which experience degradation and disclose types of factors which affect their operation.

Item Type: Book Section
Additional Information: IEEE Xplore Digital Library
Uncontrolled Keywords: embedded electronic monitoring system,daq,network topology,pv monitoring,pv degradation,embedded electronic monitoring system,network topology,energy engineering and power technology,electrical and electronic engineering,renewable energy, sustainability and the environment ,/dk/atira/pure/subjectarea/asjc/2100/2102
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Depositing User: LivePure Connector
Date Deposited: 27 Nov 2019 02:17
Last Modified: 11 Jul 2020 23:32
URI: https://ueaeprints.uea.ac.uk/id/eprint/73164
DOI: 10.1109/ICRERA47325.2019.8996874

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