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A review of bifacial solar photovoltaic applications

《能源前沿（英文）》页码 704-726 doi: 10.1007/s11708-023-0903-7

摘要： Bifacial photovoltaics (BPVs) are a promising alternative to conventional monofacial photovoltaics given their ability to exploit solar irradiance from both the front and rear sides of the panel, allowing for a higher amount of energy production per unit area. The BPV industry is still emerging, and there is much work to be done until it is a fully mature technology. There are a limited number of reviews of the BPV technology, and the reviews focus on different aspects of BPV. This review comprises an extensive in-depth look at BPV applications throughout all the current major applications, identifying studies conducted for each of the applications, and their outcomes, focusing on optimization for BPV systems under different applications, comparing levelized cost of electricity, integrating the use of BPV with existing systems such as green roofs, information on irradiance and electrical modeling, as well as providing future scope for research to improve the technology and help the industry.

关键词： bifacial photovoltaics (BPVs) bifacial photovoltaics applications review solar

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Cluster voltage control method for “Whole County” distributed photovoltaics based on improved differential

《能源前沿（英文）》页码 782-795 doi: 10.1007/s11708-023-0905-8

摘要： China is vigorously promoting the “whole county promotion” of distributed photovoltaics (DPVs). However, the high penetration rate of DPVs has brought problems such as voltage violation and power quality degradation to the distribution network, seriously affecting the safety and reliability of the power system. The traditional centralized control method of the distribution network has the problem of low efficiency, which is not practical enough in engineering practice. To address the problems, this paper proposes a cluster voltage control method for distributed photovoltaic grid-connected distribution network. First, it partitions the distribution network into clusters, and different clusters exchange terminal voltage information through a “virtual slack bus.” Then, in each cluster, based on the control strategy of “reactive power compensation first, active power curtailment later,” it employs an improved differential evolution (IDE) algorithm based on Cauchy disturbance to control the voltage. Simulation results in two different distribution systems show that the proposed method not only greatly improves the operational efficiency of the algorithm but also effectively controls the voltage of the distribution network, and maximizes the consumption capacity of DPVs based on qualified voltage.

关键词： distributed photovoltaics (DPVs) cluster partitioning improved differential evolution algorithm voltage control consumption capacity of distributed photovoltaics

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基于Cu(In,Ga)Se₂ 低成本薄膜的光伏技术的进展

Powalla Michael,Paetel Stefan,Hariskos Dimitrios,Wuerz Roland,Kessler Friedrich,Lechner Peter,Wischmann Wiltraud,Magorian Friedlmeier Theresa

《工程（英文）》 2017年第3卷第4期页码 445-451 doi: 10.1016/J.ENG.2017.04.015

摘要：

本文讨论了基于Cu(In,Ga)Se ₂ (CIGS) 复合薄膜半导体材料的光伏（PV）技术。主要内容包括CIGS技术与传统的晶体硅技术的总体比较、CIGS 技术基础、一种柔性CIGS 电池产品破世界纪录的转化效率，以及在生产、应用和稳定性方面的突出表现和良好的发展前景。CIGS 技术极具潜力，若能实现大规模量产，将成为所有光伏清洁发电技术中成本最低的一种技术。

关键词：薄膜光伏太阳能柔性 Cu(In Ga)Se₂

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加速发展光伏发电保障中国能源的可持续发展

王斯成

《中国工程科学》 2011年第13卷第9期页码 51-62

摘要：

光伏发电不受资源和制造材料的限制，是未来最主要的替代能源。我国目前是世界光伏电池的第一大生产国，制造成本近年来大幅度下降，预计5~10年内可以达到“平价上网”，做到与常规电力相竞争。光伏发电在国内的规模化推广有利于实现我国的减排目标和能源的可持续发展，但需要在政策、资金和电网接入等方面做出更大努力。

关键词：光伏发电平价上网

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Effects of design parameters on rooftop photovoltaic economics in the urban environment: a case study in Melbourne, Australia

Hongying ZHAO, Rebecca YANG, Chaohong WANG, W. M. Pabasara U. WIJERATNE, Chengyang LIU, Xiaolong XUE, Nishara ABDEEN

《工程管理前沿（英文）》 2019年第6卷第3期页码 351-367 doi: 10.1007/s42524-019-0023-6

摘要： Many researchers found high potential of adopting building photovoltaic (PV) systems in urban areas, especially on building rooftop, to improve the sustainability of urban environment. However, the optimal energy output performance and economic benefit of the PV system are affected by the usable roof area, PV array layout, and shading effect considering high city density. This study aims to understand the effects of these design parameters in the urban environment of rooftop PV’s economic performance. This study carries out a case study in the urban area of Melbourne with 90 PV designs under three shading conditions to generate 270 scenarios. Through a lifecycle cost-benefit analysis, including net present value (NPV), NPV per kW, internal return rate (IRR), and payback year, the results can help in developing a comprehensive understanding of the economic performance of rooftop PV designs that cover most of the urban areas of Melbourne. The optimal PV design scenarios for the urban environment are identified, thereby providing investors and industry professionals with useful information on value-for-money PV design. Meanwhile, the maximum shading loss that makes the PV systems financially unfeasible is investigated, and design scenarios with greatest ability to sustain the shading effect are identified. This research can also support the policy makers’ decision on the development and deployment of the roof PV systems in urban planning.

关键词： building photovoltaics tilt and azimuth orientation shading analysis economic analysis