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Know About Solar Tracker

A solar tracker is a device that follows the movement of the sun across the sky to maximize the amount of sunlight received by solar panels or solar concentrators. By continuously adjusting the orientation of the solar panels, a solar tracker ensures that they are always perpendicular to the sun's rays, resulting in increased energy production.

The basic working principle of a solar tracker involves using sensors, control systems, and mechanical or motorized components. Here's a step-by-step explanation of how a typical solar tracker works:

Sensor Detection:

The solar tracker system uses sensors or light-detecting devices to monitor the position of the sun relative to the tracker's location. These sensors can be based on various technologies such as photodiodes, light-dependent resistors (LDRs), or even more advanced systems using GPS or electronic compasses.

Data Processing:

The sensor data is processed by a control system, typically a microcontroller or a computer, which calculates the optimal position for the solar panels based on the sun's position.

Actuator Control:

The control system then sends commands to the actuator mechanism of the solar tracker. The actuator is responsible for adjusting the position of the solar panels. There are generally two types of solar trackers:

a. Single-axis trackers:

These trackers move the solar panels on a single axis, typically the horizontal axis (azimuth). They rotate the panels from east to west to track the sun's movement from sunrise to sunset.

b. Dual-axis trackers:

These trackers can move the solar panels on two axes, both horizontally (azimuth) and vertically (elevation). They can track the sun's movement throughout the day and adjust for changes in the sun's height as the seasons change.

Mechanical Movement:

The actuator mechanism physically adjusts the position of the solar panels based on the commands from the control system. It may use motors, gears, or other mechanical systems to rotate and tilt the panels.

Continuous Tracking:

The control system continuously monitors the sun's position using the sensors and adjusts the solar panels accordingly to keep them aligned with the sun's rays.

By implementing a solar tracker, solar panels can capture more sunlight throughout the day, leading to increased energy output. This is particularly beneficial in locations with a significant variation in the sun's position throughout the year or during cloudy conditions when the sun's path may not be consistent.

It's important to note that the specific design and components of a solar tracker may vary depending on the manufacturer and the type of tracker being used. Advanced solar trackers may incorporate additional features like safety mechanisms, wind sensors, or feedback control systems to optimize performance and protect the panels from extreme weather conditions.