candela

The person is so lazy that he left nothing.

The report is highly appreciated, with multiple new charts added for mountain analysis

In the process of mountain PV plant design, it is necessary to analyze the mountain to form a general and comprehensive understanding of the project site situation. At present, in the design process of many mountain photovoltaic projects, the overall analysis of the mountain is often not paid attention to, and the site delineation and layout are only carried out after a general understanding of the slope aspect. The Candela3D mountain analysis function has been enhanced with the ability to generate 6 new charts and 24 new tables, providing comprehensive mountain analysis content and significantly enhancing the report. 1. Normal analysis of mountain body This function can divide the mountain into a certain number of groups based on average normal vectors. Each group is represented by its average slope angle and slope direction. 2. Analysis of mountain slope orientation 3. Analysis of mountain slope angles (including natural slope angles, east-west…

Fresh Questions, Practical Answers: PVsyst Q&A Series #19

1.How to Calculate the power generation gain of the back side of Bifacial system? Answer: During the simulation, you can first choose single-sided simulation and then select Bifacial system. By subtracting the power generation of the two, you can calculate the theoretical power generation of the back side. 2. What is the difference between the back radiation gain and the power generation gain in a bifacial system? Answer: The backside radiation gain is an optical gain, which is different from the electrical gain. Therefore, the optical gain cannot represent the bifacial power generation gain. For example, as shown in the figure below, the backside radiation gain is 4.1%, and the actual effective backside radiation gain needs to be multiplied by the bifaciality factor of the PV modules. The power generation gain can be obtained through single-sided simulation and bifacial simulation. In this example, the single-sided power generation is 152,089 MWh,…

Fresh Questions, Practical Answers: PVsyst Q&A Series #20

1. Regarding the settings of circumsolar scattering in different versions, what impact do they have on the simulation results? Answer: In previous PVsyst versions (prior to 6.8), the circumsolar scattering was included in the scattering, whereas versions after 7.0 handle it separately. Especially in application scenarios with large tilts and vertical installations, separate treatment helps improve the accuracy of simulation results. Taking the vertical installation method of a PV module in Northern Europe as an example, the two simulation results of ambient solar radiation included in the scattering and treated separately are shown below. Different settings result in a difference of about 0.34% in hours of production. After separate treatment, the yield is higher. 2. How to set the LID and annual attenuation of PV modules? Answer: LID stands for Light Induced Degradation, which is related to material aging and annual degradation. These two factors are set separately in the…

Comparison of different leveling schemes for horizontal tracker racks

1. Problem background The length of the horizontal tracker can exceed 100 meters, and even slight terrain undulations can cause excessive height differences in the north-south direction of the tracker; this can result in shadow obstruction and prevent the cleaning robot from moving. For this reason, adjustments need to be made to the racks to ensure that the height difference between adjacent racks in the north and south is within the Setting range (typically around 0.3 meters). At the same time, the adjustable range of the rack Pile is generally only around 0.3 meters, which inevitably means that the length of some Piles may not meet the requirements. Therefore, it is generally necessary to level the site. This article intends to compare the site leveling quantities of the following three site leveling schemes: Site leveling plan 1: only adjust the height of the rack above ground Site leveling plan 2:…

Crossing hills and avoiding potholes – optimizing array layout by controlling the difference in pile length of the array

In each layout area of a complex terrain project, there are inevitably a small number of prominent hills, pits, and steep slopes, which are time-consuming and laborious to identify and adjust manually. The new version of Candela3D introduces a "Maximum Pile Position Height Difference" parameter in the array layout interface, allowing users to automatically avoid these areas and select short arrays for filling based on the available space. 1. Prevent the layout of arrays across hillocks 2. Prevent arrays from being arranged across pits 3. Prevent arrays from being arranged across steep ridges This function employs automatic step-by-step avoidance and automatically fills appropriate arrays; compared to non-automatic avoidance, where screening is done through pile length differences after arrangement is complete, it saves time and effort, and the arrangement capacity is larger and more reasonable.

The practical functions of the Candela3D-CAD plugin are available for free use (2)

The Candela3D-CAD plugin is a companion tool for the main Candela3D program, and it is completely free to users. The Candela3D-CAD plugin offers many practical functions and does not rely on the Candela3D software to run. Some of its tools can significantly enhance everyone's work efficiency, and we highly recommend them. The previous article "Candela3D-CAD | Free Use - Practical CAD Plugins (1)" has introduced some of the primitive processing functions. This article is the second part: drawing generation and reverse import. At the end of the article, there are download links, installation, and uninstallation videos for using the plugin. 1. Generate drawing command set (1) DrawArrayAndTransformerCenter: This command is used to mark the center coordinates of rectangular Pcs. When executing this command, the plugin will automatically identify all rectangular Pcs in the drawing. The user then selects the rectangular Pcs that need to be marked, and the software will…

The practical functions of the Candela3D-CAD plugin are free to use (3)

The Candela3D-CAD plugin is a companion tool for the main Candela3D program, fully available to users free of charge. The Candela3D-CAD plugin offers numerous practical functions and does not rely on the Candela3D software to run. Certain tools can significantly enhance everyone's work efficiency, and we highly recommend them. The previous articles "Candela3D-CAD | Free Use - Practical CAD Plugins (1)" and "Candela3D-CAD | Free Use - Practical CAD Plugins (2)" have introduced some of the primitive processing functions. This article is the third part: Other Functions. At the end of the article, there are download links, installation, and uninstallation videos for using the plugin. (1) AlignArrays: After using the "Transform Polygons to Arrays (Poly2block)" command, the transformed array blocks may appear unevenly arranged in rows and columns. Therefore, it is necessary to use the "Align Arrays" command to align the transformed array blocks in rows and columns. "Azimuth tolerance":…

The practical functions of the Candela3D-CAD plugin are free to use (1)

The Candela3D-CAD plugin is a companion tool for the main Candela3D program, and it is completely free to users. The Candela3D-CAD plugin offers many practical functions and does not rely on the Candela3D software to run. Some of its tools can significantly enhance our work efficiency, and we highly recommend them. This article is the first part: graphic element processing. At the end of the article, there are download links and videos demonstrating the installation and uninstallation of the plugin. (1) Unionpolyline: The Red line In one cell command, specifically designed for handling a large number of Red line Ranges exported from software such as Ovi and ArcGIS. This command is limited to merging available Areas and cannot select and merge Restricted areas. After executing this command, the software will display the following interface: "Area threshold": When the proportion of the intersection area of two areas to the area of…

Fresh Questions, Practical Answers: PVsyst Q&A Series #5

The PVsyst version used for the following Q&A is 6.66 or higher, but other lower versions can also be referenced for guidance. 1. Can the power factor of the inverter in PVsyst be adjusted? [Teacher Chen]: By default, the power factor in the inverter parameters is set to No settings, but you can open the inverter parameters and set it within the range of 0.8 leading to 0.8 lagging in the "Power Factor" option, as shown in the interface in Figure 1. ▲Figure 1: Power Factor Adjustment in the Inverter Parameter Interface 2. How to set up a system with 39 PV modules? Should there be 2 sub-arrays? One with 20 modules and one with 19 modules? [Teacher Chen]: As indicated in the title, this photovoltaic system utilizes a total of 39 modules and shares a single 10kW string inverter, where the MPPT input channels of the inverter are 2…

Fresh Questions, Practical Answers: PVsyst Q&A Series #18

1. Why is there a difference in shading loss when importing terrains of different ranges? Answer: The software simulates the calculation of shading loss mainly in two types: near shadings and horizon shadings. The former requires modeling, while the latter requires setting the horizon. If a model containing terrain contours and arrays is imported into the 3D modeling, it is generally calculated as near shadings. For terrains with a large area and the farthest point being more than 10 times the diameter of the photovoltaic field, if the ground elevation in the distance is high and may cause shading to the photovoltaic field, the horizon should be set in the software to calculate the horizon shading loss. If not set, the software defaults the horizon shading loss to 0%, which may result in a smaller simulated shading loss. 2. When using a master-slave inverter, what issues should be noted? Answer:…

Load More