1. What is a solar power tracking system?
The solar power tracking system is a mechanical and electronic control unit system that optimizes the use of sunlight and improves the photoelectric conversion efficiency in the process of photothermal and photovoltaic power generation, including: motors (DC, stepping, servo, planetary gear motors, push rod motors, etc. ), worm gears, sensor systems, etc.
In terms of solar photovoltaic applications: keep the solar panels facing the sun at all times, and let the sun's rays illuminate the power devices of the solar panels vertically at any time. The use of solar power tracking system can significantly improve the power generation efficiency of solar photovoltaic modules.
Due to the rotation of the earth, relative to the solar photovoltaic power generation system at a fixed location, the sun rises and sets every day in four seasons of a year, and the sun's illumination angle changes all the time, effectively ensuring that the solar panels can always face the sun each other, so that the power generation efficiency will reach the best state.
At present, the solar power tracking systems commonly used in the world all need to calculate the angle of the sun at different times of each day of the year according to the latitude and longitude of the placement point, and store the sun position at each moment of the year in the PLC, microcontroller or computer software, it is necessary to calculate the position of the sun at each moment of the fixed location to achieve tracking.
The computer data theory is used, which requires data and settings in the latitude and longitude area of the earth. Once installed, it is inconvenient to move or disassemble. After each move, the parameters must be recalculated, data set and various parameters adjusted; the principle, circuit, technology, and equipment are very complex, and non-professionals cannot operate it casually.
Ⅱ. Four working states of the solar power tracking system:
1. Daily tracking status under normal conditions (good weather conditions);
2. Intermittent tracking. If there is a period of cloudy or cloudy or severe weather during the day, the system will be identified as unsuitable for tracking, and the entire system will be suspended. When the light and tracking conditions are right, the system will have a fast tracking command to bring the tracker roughly at the sun. After that, the program will perform another set of signal acquisition and processing to complete fine tracking;
3. Automatic return. After sunset, the solar power tracking system will automatically go to sleep and automatically return to the position where the sun rises. The next day, it will automatically enter a new round of operation;
4. Protection of bad weather conditions: When the environmental wind speed or precipitation and other factors are not suitable for the system to work, the tracker will automatically stop working, and the light-receiving surface of the entire large system will be in a parallel or vertical state with the ground plane to avoid the system being damaged.
- Solar Tracker Controller TCU
- Solar Intelligent Communication Box NCU
- Digital Intelligent Operation Software Solar SCADA