A feasibility study of the 1.5-axis tracking model in utility-scale solar PV plants

Wong, Junying; Bai, Feifei; Saha, Tapan Kumar; Tan, Rodney H.G.

doi:10.1016/j.solener.2020.12.035

Cited by 10 publications

(3 citation statements)

References 22 publications

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“…Системы слежения за Солнцем с разомкнутым контуром управления также представлены в работах [37][38][39][40][41][42][43][44].…”

Section: следящие системы с разомкнутым контуром управленияunclassified

The Status and Prospects for Developming Photovoltaic Power Stations With Sun Tracking Systems

Mitrofanov,

Baykasenov

2023

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Оренбургский государственный университет, Оренбург, РоссияАннотация. Преобразование солнечной энергии в электрическую является одним из решений для повышения надежности электроснабжения удаленных потребителей. Объем генерируемой электроэнергии фотоэлектрическими станциями зависит от их географического месторасположения, температуры окружающей среды, погодных условий, материала фотоэлектрических модулей, а также от угла падения солнечного потока и ориентации фотоэлектрических модулей. В статье рассмотрены способы повышения надежности электроснабжения потребителей электроэнергии фотоэлектрических станций, проанализированы существующие принципы и механизмы, определяющие оптимальное положение фотоэлектрических модулей. Обосновано, что наилучшим способом повышения энергоэффективности работы фотоэлектрических станций является применение автоматизированных систем слежения за Солнцем. Проанализирована научно-техническая литература по проектированию, эксплуатации и моделированию следящих систем фотоэлектрических станций с активным управлением. Рассмотрены существующие классификации систем слежения за Солнцем. Определены основные направления совершенствования и развития следящих систем для фотоэлектрических станций, которые позволят исследователям решать актуальные задачи возобновляемой энергетики.Ключевые слова: солнечные трекеры, системы слежения за Солнцем, фотоэлектрические станции, возобновляемые источники энергии, обзор солнечных трекеров

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Section: следящие системы с разомкнутым контуром управленияunclassified

The Status and Prospects for Developming Photovoltaic Power Stations With Sun Tracking Systems

Mitrofanov,

Baykasenov

2023

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“…Such systems include motors, sensors and moving parts that fixed tilt systems do not have, and which require additional maintenance costs. In particular, it is common and correct to estimate up to 10-15% more O/M costs for PV systems that use solar tracking devices [17].…”

Section: O/m Comparisonmentioning

confidence: 99%

Utility Scale Ground Mounted Photovoltaic Plants with Gable Structure and Inverter Oversizing for Land-Use Optimization

Cossu¹,

Baccoli

Ghiani

2021

Energies

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The paper proposes an effective layout for ground-mounted photovoltaic systems with a gable structure and inverter oversizing, which allows an optimized use of the land and, at the same time, guarantees a valuable return on investment. A case study is presented to show the technical, economic, and environmental advantages compared with conventional “fixed-tilt” and “sun-tracking” ground-mounted photovoltaic installations. The main advantage of this solution is that it maximizes the energy produced per unit of land area used; but, also considering the economic metrics, the net present value of the proposed PV arrangement solution results in a greater annual volume of energy produced and therefore of net revenues and cash flows, and greater than the compared conventional solution with modules exposed in an optimal fixed position or which make use of sun-tracking systems.

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“…To achieve the balance between benefits and short comings of the single axis and double axis tracking system, feasibility study of 1.5 axis tracking is also conducted for energy performance and shading analysis. (Wong et al 2021) Estimation of received solar radiations for various locations using different tracking surfaces and their validation is reported in many articles. A theory of experimental approach is exploited for the estimation of global solar radiation for the tropical wet climatic region of India and concluded that proposed method exhibits high potential for the monthly average prediction of global solar radiations (Makade et al 2020).…”

Section: Introductionmentioning

confidence: 99%

MATLAB/Simulink Based Instantaneous Solar Radiation Modeling, Validation and Performance Analysis of Fixed and Tracking Surfaces for the Climatic Conditions of Lahore City, Pakistan

Ahmad

2022

Int. J. Renew. Energy Dev.

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Mathematical modeling of instantaneous solar radiation is conducted in this article. The input parameters of the developed model are solar constant, latitude & longitude of the selected site, collector surface azimuth and elevation angle. The whole model is developed in MATLAB/Simulink and can plots global radiation for any selected day of the year. To validate the model, actual data from RETScreen (energy management software) is taken and compared with the predicted data from developed model. During the whole year the predicted specific insolation is 226.65MJ/m2/day and actual is 202.14MJ/m2/day. The percentage error of the predicted data is 10.8% higher than the actual data. The validated model is used to calculate the monthly received solar radiation energy for the fixed surface and tracking surface. The yearly harvested solar energy by horizontal, yearly and monthly optimal tilt surfaces are 6828MJ/m2, 7405MJ/m2 and 7761MJ/m2 respectively. Yearly insolation gain of the yearly optimal tilt and monthly optimal tilt collector surface is 8% and 14% as compared to the energy harvested by horizontal surface. For the single and dual axis tracking surfaces, yearly harvested energy is 8843MJ/m2 and 9374MJ/m2 respectively and this figure is 30% and 37% more as compared to the horizontal surface. If the insolation received by yearly optimal tilt is considered as reference value, then energy gain for monthly tilt, single and dual axis tracking is recorded as 5%, 19% and 27% respectively.

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A feasibility study of the 1.5-axis tracking model in utility-scale solar PV plants

Cited by 10 publications

References 22 publications

The Status and Prospects for Developming Photovoltaic Power Stations With Sun Tracking Systems

The Status and Prospects for Developming Photovoltaic Power Stations With Sun Tracking Systems

Utility Scale Ground Mounted Photovoltaic Plants with Gable Structure and Inverter Oversizing for Land-Use Optimization

MATLAB/Simulink Based Instantaneous Solar Radiation Modeling, Validation and Performance Analysis of Fixed and Tracking Surfaces for the Climatic Conditions of Lahore City, Pakistan

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