9 Inch Dual Axis Slewing Drive Bearing Sun PV Tracking

SVH9 Dual Axis Slewing Gear Slewing Drive is designed for PV CSP CPV Solar Tracker.

Slewing drives are widely used in the solar energy field and have many advantages. The following is a detailed introduction:

Applications of Slewing Drives in Solar Energy

Solar Tracking Systems

• Single-axis Tracking: In a single-axis solar tracking system, the slewing drive is used to make the solar panels rotate around one axis (usually a horizontal or vertical axis) to track the sun's position changes throughout the day. For example, in a horizontal single-axis tracking system, the slewing drive can drive the panels to rotate in the east-west direction, ensuring that the panels always roughly face the sun, thus increasing the efficiency of solar energy reception.
• Dual-axis Tracking: A dual-axis solar tracking system requires two slewing drives, which respectively control the rotation of the panels in the horizontal and vertical directions. This enables more accurate tracking of the sun's position in the sky, allowing the panels to receive sunlight to the maximum extent at different seasons and times.

Solar Concentrating Systems

• Dish Concentrating: In a dish solar concentrating system, the slewing drive is used to control the direction of the dish-shaped reflector, enabling it to precisely focus the sunlight onto the receiver located at the focal point, thereby increasing the concentration ratio and power generation efficiency.
• Trough Concentrating: For a trough solar concentrating system, the slewing drive can adjust the angle of the trough-shaped reflector to ensure that the reflected sunlight accurately focuses on the collector tube, improving the heat collection efficiency and providing more sufficient heat for subsequent processes such as thermal power generation.

Coresun Drive dual axis SVH9 with 24VDC motor,12VDC motor,220VAC, 380VAC motor

Advantages of Slewing Drives in Solar Energy Applications

Increasing Power Generation Efficiency

By accurately tracking the sun, solar panels or concentrating devices can always maintain the optimal angle with the sunlight, maximizing the amount of solar radiation received. Generally, it can increase the power generation efficiency by about 20% - 40%.

Compact Structure and High Integration

Slewing drives usually integrate components such as motors, reducers, brakes, and bearings into one unit. With a compact structure, they occupy a small space, making it convenient to layout within the limited installation space of solar energy devices. They are especially suitable for distributed solar power stations or small-scale solar energy application systems with limited space.

High Transmission Precision

It can precisely control the rotation angle of solar panels or concentrating devices, ensuring accurate tracking of the sun's position. Some high-precision slewing drives can control the tracking error within a very small range, guaranteeing the stable operation and high-efficiency power generation of solar energy devices.

Strong Load-bearing Capacity

It can bear the weight of solar panels or large concentrating reflectors and other external forces such as wind loads and gravity during operation, ensuring the stability and reliability of the devices under various environmental conditions. It can ensure that the devices can still maintain normal working conditions even in harsh weather conditions such as strong winds.

High Reliability

Slewing drives generally adopt a sealed design, which can effectively prevent external factors such as dust and rainwater from eroding the internal components, reducing the probability of failures, lowering maintenance costs, and extending the service life. During the designed service life of 20 - 30 years of a solar power station, they can operate stably and reduce the number of repairs and replacements.

SVH7 slewing drive slewing gearbox with 24VDC motor is certificated by CE

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