Configuration optimization of PV array for stratospheric airship under nonuniform radiation condition

IF 5 1区工程技术 Q1 ENGINEERING, AEROSPACE

Aerospace Science and Technology Pub Date : 2024-09-01 DOI:10.1016/j.ast.2024.109550

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引用次数: 0

Abstract

The nonuniform solar irradiation on the stratospheric airship surface leads to overlooked mismatch losses in photovoltaic (PV) array. Proper configuration for PV array is crucial but frequently neglected in airship energy system research. In this paper, a mathematical model coupled with the layout of PV array on airship surface, radiation model, electrical model and energy balance model is established. The deployment of PV pack based on the distribution characteristics of solar radiation on airships surface is analyzed. Three maximum power point tracking configurations for the PV array are investigated in detail. The results indicate that mounting PV pack in axial series on stratospheric airships leads to higher power output compared to parallel-connected deployment, PV packs on stratospheric airships exhibit significant output power differences along the circumferential direction and minor differences along the axial direction, the peak of daily maximum output difference ratio is merely 0.4 % between the PV array under the distributed maximum power point tracking (DMPPT) and the partial distributed global maximum point tracking (PDMPPT) configuration, and PDMPPT configuration needs much fewer module, it emerges as the optimal choice for stratospheric airship PV array. This investigation can provide references for the further PV array configuration optimization under nonuniform radiation condition.

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非均匀辐射条件下平流层飞艇光伏阵列的配置优化

平流层飞艇表面的非均匀太阳辐照会导致光伏阵列出现被忽视的不匹配损失。光伏阵列的合理配置至关重要，但在飞艇能源系统研究中却经常被忽视。本文建立了一个结合飞艇表面光伏阵列布局、辐射模型、电气模型和能量平衡模型的数学模型。分析了基于飞艇表面太阳辐射分布特征的光伏阵列部署。详细研究了光伏阵列的三种最大功率点跟踪配置。结果表明，在平流层飞艇上轴向串联安装光伏电池组比并联部署具有更高的功率输出，平流层飞艇上的光伏电池组沿圆周方向表现出显著的输出功率差异，沿轴向方向差异较小，日最大输出功率差异比峰值仅为 0.分布式最大功率点跟踪（DMPPT）配置下的光伏阵列与部分分布式全局最大点跟踪（PDMPPT）配置下的光伏阵列相差 4%，且 PDMPPT 配置所需的组件数量更少，因此成为平流层飞艇光伏阵列的最佳选择。这项研究可为进一步优化非均匀辐射条件下的光伏阵列配置提供参考。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Aerospace Science and Technology 工程技术-工程：宇航

CiteScore

10.30

自引率

28.60%

发文量

654

审稿时长

54 days

期刊介绍： Aerospace Science and Technology publishes articles of outstanding scientific quality. Each article is reviewed by two referees. The journal welcomes papers from a wide range of countries. This journal publishes original papers, review articles and short communications related to all fields of aerospace research, fundamental and applied, potential applications of which are clearly related to: • The design and the manufacture of aircraft, helicopters, missiles, launchers and satellites • The control of their environment • The study of various systems they are involved in, as supports or as targets. Authors are invited to submit papers on new advances in the following topics to aerospace applications: • Fluid dynamics • Energetics and propulsion • Materials and structures • Flight mechanics • Navigation, guidance and control • Acoustics • Optics • Electromagnetism and radar • Signal and image processing • Information processing • Data fusion • Decision aid • Human behaviour • Robotics and intelligent systems • Complex system engineering. Etc.