Synchronization of Solar Stand-alone Devices and Autonomous Energy Management through Solar Time Measurements

2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC & 34th EU PVSEC) Pub Date : 2018-06-01 DOI:10.1109/PVSC.2018.8548183

A. Adrián Santamaría Lancia, Nicholas Riedel, Rasmus Overgaard Ploug, Sune Thorsteinsson, P. Poulsen, A. Gisele dos Reis Benatto

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Abstract

This works present a method for synchronization of a solar device to real solar time for event triggering and energy management. Specifications require the devices to be off-grid and self-adjusting. Measurements of daylight duration were performed using one test device over the course of several months in Denmark. Analysis of viability over the accuracy of solar time determination and potential for self-adjusting energy management was carried out. Measurement results allowed for the development of an algorithm with good potential for performing the required tasks. Influence of variations in weather and different shadowing conditions were tested in two prototype devices. Results show a good potential for estimation of solar time and daily synchronization between devices within less than 5 minutes error.

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通过太阳时间测量实现太阳能单机设备同步和自主能源管理

本工作提出了一种将太阳能装置与实际太阳时间同步的方法，用于事件触发和能量管理。规格要求设备离网自调节。在丹麦的几个月里，使用一个测试设备进行了日光持续时间的测量。对太阳时测定精度的可行性和能量自调节管理的潜力进行了分析。测量结果允许开发具有执行所需任务的良好潜力的算法。在两个原型装置上测试了天气变化和不同遮蔽条件的影响。结果表明，在误差小于5分钟的情况下，该方法可以很好地估计太阳时间和设备之间的日同步。

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2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC & 34th EU PVSEC)

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