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xueting

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  1. Hello, When I use the 3D model for simulation, I save and exit the 3D editing interface after laying the photovoltaic modules. But when I enter again, the position of the laid component moves.The original photovoltaic module is on the roof of A. After entering again, the component runs to B.3D models are created by importing dae files. Sorry, I can't upload pictures due to company network restrictions
  2. Hello, my colleague installed the PVsol premium software on the new computer, and it keeps showing offline status. It has been confirmed that the computer has a network. How can I change the software to online? Software cannot be updated and custom components cannot be used due to offline status
  3. hello, I choose to record the characteristic curve of the module in the options, but I can only see the string I-V curve of the inverter MPP in the results. Can I see the I-V curve of each PV module?
  4. hi,Martin, The screenshot is shown below: I'm sorry, I can't measure the data on the DC side of the inverter. As for the weather data, I only imported the data from December to March, and replaced the rest with zeros.
  5. Dear Martin I'm sorry that due to company security restrictions, I can't send the project files. Based on your comments, I compared "Irradiance onto horizontal plane" , the "Irradiance onto tilted plane" and imported irradiance data. The "Irradiance onto horizontal plane" is basically the same as the imported irradiance data.The "Irradiance onto tilted plane" data will be higher than "Irradiance onto tilted plane", but I think this is reasonable, because I am in Dongguan, China, the module is installed with a south angle, the "Irradiance onto tilted plane" data Because the inclination angle will increase. As for the sun height curve and the irradiance curve are basically synchronized. As for PV module data, the manufacturer only provides STC data (performance in STC: 1000W/m², 25°C , AM1.5).Low light performance parameters not provided.From 10:00 am to 3:00 pm, the irradiance value is about 400-900kWh/m2. Will this value be considered by the software as a low light scene? In addition, I would like to ask, during the simulation, if I select the meteorological data of a certain place in the software library, do I still need to manually input the sun altitude?
  6. hello,Jimmy 1.Both the imported irradiance data and the simulation are in 1h steps. 2.As for the second question, I don't understand either 3.The photovoltaic module used in the experiment is the module of Longyan company model ASP-S1-105, the module is not in the software library, so I imported it according to the specification provided by the manufacturer (performance in STC: 1000W/m², 25°C , AM1.5).The inverter adopts Huawei products, model: sun2000-10KTL-M1.The total cable loss set in the software is 0.4%, and there is no specific distinction between what material the cable is made of.The service life of the components is linearly attenuated: 80% of the output is still available after 25 years. 4.The environmental monitor is not blocked by shadows, and the components are blocked to some extent, which is also considered in the simulation model. I'm sorry that due to company security restrictions, I can't send the project files.
  7. Hello, for the global irradiance, the environmental detector is used to obtain the global irradiance, and the SN model of the device is EM00101990088966.The environmental detector was placed horizontally and installed about 3 meters away from the experimental components.As far as I know, the device is basically not cleaned.The environmental detector is placed horizontally, while the PV modules are mounted on brackets with a 17° inclination. In the simulation model, the components are also modeled with an inclination of 17°.In the comparison process, 12 modules were used, and every 6 modules were connected in series and then connected to the inverter in parallel, and the power generation on the AC side was compared. The photovoltaic module is CdTe, and its STC performance data is newly created in the software according to the manufacturer's data. The detailed model parameters are as follows:
  8. Hello, I have recently encountered a problem with PVsol Premium and I hope it can be answered. I set up an experimental bureau to compare the simulated power generation with the actual power generation.First, I imported the data processing of the environmental irradiator, which recorded temperature and irradiance , into PVsol Premium,Then, according to the actual scene modeling and simulation, the final result shows that the simulated power generation under strong irradiation is higher than the actual power generation.The red line is the simulated value, and the blue line is the actual power generation value.In simulation I set 4% dust loss.I want to know why the deviation is so large, and secondly, what parameters can be input in order to improve the accuracy during simulation?
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