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Working principle and design principle of solar monitoring system

by:Litel Technology     2022-05-23
The application of solar energy has become very common. It is suitable for environments where monitoring and power supply are inconvenient in the wild, such as barren hills, roads, fish ponds, etc. Solar power provides a good solution for the power supply of video surveillance. The equipment used in the solar monitoring system and the design of its overall scheme are described in detail below. 1. Solar power supply equipment 1. The materials of solar monitoring system panels are mainly monocrystalline silicon, polycrystalline silicon, amorphous silicon and other materials. Monocrystalline silicon solar panels: The photoelectric conversion efficiency is about 15%, and the limit is 24% higher, which is the highest among various solar panels, but the manufacturing cost is high. Generally, the service life can reach 15 years, or even 25 years. Polycrystalline silicon solar panels: The photoelectric conversion rate is about 12%, the cost is slightly lower than that of monocrystalline silicon, and the service life is shorter than that of monocrystalline silicon. Amorphous silicon solar panel: can generate electricity even in low light environment. The photoelectric conversion rate of internationally advanced amorphous silicon solar panels is about 10%, and the conversion efficiency is declining as time goes on. 2. Solar monitoring system controller The solar monitoring system controller is called the solar charge and discharge controller, which is an automatic control device used in the solar power generation system to control the multi-channel solar cell array to charge the battery and the battery to supply power to the solar inverter load. It regulates and controls the charging and discharging conditions of the battery, and controls the power output of the solar cell components and the battery to the load according to the power demand of the load. It is the core control part of the power system of the entire solar monitoring system. 3. As the name suggests, the battery is the storage of electricity, which mainly stores the electric energy converted from the solar panel, which can be recycled for many times. In the whole monitoring system, some devices need to provide 220V and 110V AC power, and the direct output of solar energy is generally 1 2VDc, 24VDc and 48VDc. Therefore, in order to provide power to 22VAC and 11OVAc devices, a DC/AC inverter needs to be added to the system to convert the DC power generated in the solar photovoltaic power generation system into AC power. Second, the working principle of the solar monitoring system 1. When the sunlight is strong, the current generated by the solar photovoltaic modules converges to the controller, and the controller monitors the power supply. The photovoltaic modules supply power to the video surveillance components through the controller and store the excess energy in the energy storage system. 2. When the sunlight is weak, when the electric energy generated by the solar energy storage unit panel cannot meet the energy required for video surveillance, the load can obtain energy from the solar energy storage unit panel, and the energy storage system is in a state of discharge, which meets the requirements of video surveillance. stable operation. 3. When the sunshine conditions are not good at night, cloudy days, etc. The energy storage system will power the video surveillance. 3. Design principles of solar power monitoring system 1. Where is the solar power generation system used? How is the solar radiation in this area? 2. What is the power of the monitoring equipment? 3. What is the load voltage, DC or AC? 4. How many hours per day does the load need to work? 5. In rainy days without sunlight, how many days can the solar monitoring system continuously supply power?
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