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The conversion efficiency of solar panels is determined by light and light efficiency, which varies for different types of solar panels. Below, we will introduce how solar panels convert energy.
Solar street lights mainly consist of solar photovoltaic modules, batteries, charge-discharge controllers, and lighting fixtures. The bottleneck in promoting the widespread use of solar street lights is no longer a technical issue, but a cost issue. To reduce costs while improving the system’s stability and efficiency, the output power of the solar photovoltaic cells must be reasonably matched with the battery capacity and load power. Therefore, theoretical calculations alone are not sufficient. Since the intensity of sunlight is constantly changing, both charging and discharging currents fluctuate, leading to considerable theoretical calculation errors. Only by implementing automatic tracking and monitoring of charging and discharging currents can we accurately determine the output power of photovoltaic cells in different seasons and orientations. This ensures a reliable match for batteries and loads.
The compensation circuit samples the output current of the photovoltaic cells, the discharge current of the batteries, and the working voltages for charging and discharging at a certain frequency. A USB data acquisition module sends the collected data to a computer. The data is then displayed and statistically analyzed in real-time using the LabVIEW software platform.
The output signal from the batteries is a floating signal. Differential measurement methods reduce the impact on the measured circuit and also minimize measurement errors. In this compensation circuit, a high-precision low-drift integrated operational amplifier ICL7650 is used to make a differential amplifier. This amplifier detects the differential signal across a small resistor in the charge-discharge line as the current detection signal. A large resistor voltage divider connected in parallel with the battery is used to obtain the small signal as the voltage signal. To eliminate interference, two equal-value resistors are connected between the two input terminals of the differential amplifier and the signal ground. The output signals from the two differential amplifiers are sent to the two input channels of the USB acquisition module for signal conditioning and collection.
The conversion principle of solar panels involves directly converting solar radiation energy into electrical energy. The basic device for the optical-electrical conversion in solar panels is the solar cell. A solar cell is a semiconductor photodiode that converts solar energy directly into electric energy due to the photovoltaic effect. When sunlight strikes the photodiode, it converts solar energy into electric energy, generating current. By connecting multiple batteries in series or parallel, a solar panel with a larger output power can be formed.
For more information, please consult the price list for solar panels.
We welcome inquiries about street lights. Bitpott solar panel manufacturers are specialized in research, production, and sales of solar and LED outdoor lighting. With years of production experience and advanced manufacturing equipment, we ensure quality and reasonable prices and configurations for purchasing LED solar street lights.
For questions regarding the prices of the solar panels, please reach out to our customer service. We welcome your inquiries!
