Arctech AI-Powered Tracker Boosts Energy Output by Up to 7%

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    As a leader in providing solar racking, tracking and BIPV solutions, Arctech Solar is working hard towards innovative solutions. It is committed to providing high-quality products with the highest engineering standards in customer interests by maximizing the value of their investments while mitigating the inherent risks. Arctech Solar has its services from complete designing, manufacturing and end to end technical support to help its customers solve the toughest challenges in the industry.  

    Our global team of over 100 R&D members has innovatively integrated Artificial Intelligence with tracker technologies while keeping a simple, digital and smart design concept. We offer the Industry leading a new generation of AI (artificial intelligence) solar tracking solutions which helps to adapt to different conditions like various module technologies (such as bifacial modules), various weather conditions (sunny or cloudy), various topographies (such as undulations or slopes) and various terrains (such as land, grassland, snowfield). After field verification and simulations by Arctech Solar, this solution can improve the power generation of solar PV plants by up to 7%.

    1. Tracking control strategy on a real terrain:

    Normally, solar trackers operate by following the Sun’s trajectory. In the early morning or late afternoon, shadows appear between PV arrays due to low sun altitude angle. To solve this problem, a backtracking algorithm is added to make the tracker move in the opposite direction to the sun’s trajectory reducing shadows, which results in a smaller energy loss. For flat terrains, the tracker successfully avoids shadows by backtracking; however, for complex undulating terrains, the traditional backtracking function cannot make full use of the irradiation resources, and shadows are present in interior arrays, which causes energy loss. The steeper the slope, the more severe shadow effects, and the greater the power loss. Therefore, it is necessary to optimize the algorithm of traditional backtracking.

    Based on the principle of maximizing PV yield, Arctech Solar uses the tracking control strategy on a real terrain to optimize the backtracking algorithm. By modelling the tracker layout across the land, the different trackers tilt to different angles. In this way, the impact of shadow occlusion is reduced and a better use of light resources is realized. This new algorithm achieves energy gains of 0~5%, in the backtracking phase.

    1.2 The Cloud Strategy Based on Real-time Weather Data: –

    In addition to topography optimization, The AI solution also includes a weather-related optimization. It establishes a meteorological database of the project site through sky cameras, then analyses and converts weather data into useful meteorological information via neural networks and real-time training. It calculates the best tracking angle, which can increase the power generation by 0.5%~2%.

    1. The Bifacial Strategy for Bifacial Modules & Trackers: –

    When a traditional tracker operates, the smallest incident angle of sunlight to the module surface corresponds to the maximum radiation received, achieving the best angle and power generation state. Therefore, traditional tracking mode can only ensure the maximum radiation on the front side of the bifacial module. The AI control system can perform algorithm optimization on the tracker angle for bifacial modules. By obtaining the radiation reaching both the front and rear side of the generation of the modules as a whole is maximized under any weather condition.

    The AI bifacial strategy separately performs irradiation and weather sampling, distributed feedback, concentrated deep learning, constant comparison of information (predicted values and target values). Through this process, the maximum power tilt is obtained and sent to each control box.

    Customer & Projects: – 

    In India, Arctech Solar has been one of the top mounting structure suppliers for the last 5 consecutive years. Currently, Arctech is working with many key customers in the Indian PV industry. Despite the challenges, during the COVID-19 lockdown, Arctech bagged nearly 2 GWp contracts from various clients and more than 1GWp trackers already reached the project sites. All these projects are situated in a different part of Rajasthan India and will be equipped with SkyLine (1P) Bifacial Trackers.  Our SkyLine tracker, with its signature 1P configuration and AI Controller, is a perfect fit for these projects. The land constraints create challenges that only a tracker with a design like Arctech can truly optimise.

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