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用于室内光能采集的有机光伏电池与超低功耗CMOS电路相结合

Combined Organic Photovoltaic Cells and Ultra Low Power CMOS Circuit for Indoor Light Energy Harvesting.

作者信息

Batista Duarte, Oliveira Luis Bica, Paulino Nuno, Carvalho Carlos, Oliveira João P, Farinhas Joana, Charas Ana, Dos Santos Pedro Mendonça

机构信息

CTS-UNINOVA, Instituto de Desenvolvimento de Novas Tecnologias, 2829-517 Caparica, Portugal.

Department of Electrical Engineering, Faculty of Sciences and Technology (FCT), University Nova de Lisboa (UNL), Lisbon, Portugal.

出版信息

Sensors (Basel). 2019 Apr 15;19(8):1803. doi: 10.3390/s19081803.

DOI:10.3390/s19081803
PMID:30991740
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6515093/
Abstract

This paper describes an energy harvesting system composed of an organic photovoltaic cell (OPV) connected to a DC-DC converter, designed in a 130 nm Complementary Metal-Oxide-Semiconductor (CMOS) technology, with a quasi- maximum power point tracking (MPPT) algorithm to maximize the system efficiency, for indoor applications. OPVs are an emerging technology with potential for low cost indoor light energy harvesting. The OPV current-voltage curves (I-V) under an irradiance of solar simulator Oriel Sol 3A, at room temperature, are obtained and an accurate electrical model is derived. The energy harvesting system is subjected to four different indoor light sources: 35 W halogen, 3.5 W LED, 5 W LED, and 7 W LED, positioned at three different heights (0.45 m, 0.26 m, and 0.11 m), to evaluate the potential of the system for indoor applications. The measurements showed maximum efficiencies of 60% for 35 W halogen and 45% for 7 W LED at the highest distance (0.45 m) and between 60% (5 W LED) and 70% (35 W halogen), at the shorter distance (0.11 m). Under irradiation, the integrated CMOS circuit presented a maximum efficiency of 75.76%, which is, to the best of the authors' knowledge, the best reported power management unit (PMU) energy system using organic photovoltaic cells.

摘要

本文描述了一种能量收集系统，该系统由连接到DC-DC转换器的有机光伏电池（OPV）组成，采用130纳米互补金属氧化物半导体（CMOS）技术设计，具有准最大功率点跟踪（MPPT）算法以最大化系统效率，用于室内应用。有机光伏电池是一种新兴技术，具有低成本室内光能收集的潜力。在室温下，获得了太阳能模拟器Oriel Sol 3A辐照下的有机光伏电池电流-电压曲线（I-V），并推导了精确的电气模型。该能量收集系统受到四种不同的室内光源照射：35瓦卤素灯、3.5瓦发光二极管、5瓦发光二极管和7瓦发光二极管，光源位于三个不同高度（0.45米、0.26米和0.11米），以评估该系统在室内应用中的潜力。测量结果表明，在最高距离（0.45米）时，35瓦卤素灯的最大效率为60%，7瓦发光二极管的最大效率为45%；在较短距离（0.11米）时，5瓦发光二极管的效率在60%至70%之间（35瓦卤素灯）。在辐照下，集成CMOS电路的最大效率为75.76%，据作者所知，这是使用有机光伏电池报道的最佳功率管理单元（PMU）能量系统。

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