光伏跟踪系统
Photovoltaic tracking system is a photovoltaic system that can automatically track the sun and increase overall power generation.
The photovoltaic tracking system uses a step tracking method, which detects the changes in the direction of light in real time through sensors installed on the solar cell array.
The sensor is unbalanced, and the system output signal has deviation. When the deviation reaches a certain amplitude, the sensor outputs a corresponding signal, and the actuator starts to correct the deviation, so that the photoelectric sensor
The system continuously adjusts and follows the sun along its orbit at all times, forming a closed-loop feedback system to achieve automatic tracking.
1. System advantages
Increase power generation
By tracking the movement of the sun in real time, sunlight can be directed to the photovoltaic array, thereby increasing the amount of solar radiation received by the photovoltaic array and improving the overall power generation of the solar photovoltaic power generation system.
A properly designed photovoltaic tracking system can increase the efficiency of the entire system by 40%.
cut costs
Although the photovoltaic tracking system itself contains additional equipment (sensors, actuators and control systems), it reduces the cost per unit of electricity due to improved power generation efficiency.
The system's motor consumes only 20kwh of electricity a year, and is low-cost and easy to install.
Wide range of applications
The photovoltaic automatic tracking system is well suited to environments with a lot of frost, snow, and dust, and can also work reliably in unattended photovoltaic power stations.
2. System Classification
Photovoltaic tracking systems are mainly divided into four types: horizontal single-axis tracking, dual-column inclined single-axis tracking, vertical single-axis tracking and dual-axis tracking.
Tracking and Vertical Single-axis tracking has only one rotational degree of freedom, while dual-axis tracking has two rotational degrees of freedom.