In-Line Actuator Design Provides Robust Option for Solar Tracking Systems
Solar farms contain fields of solar panels to capture sunlight which is then converted into energy. Some of the solar panels at these farms utilize tracking systems to position the panels as needed so they are always facing the sun and thus collecting the most energy possible.
The tracking systems rely on linear actuators to pivot the solar panels as desired. However, because the systems are in outdoor locations, they are exposed to water, temperature extremes and other environmental factors which have caused early failure rates for many actuators.
After being approached by an energy company looking for a more durable actuator option, motion technology company Schaeffler developed an in-line actuator capable of better withstanding exposure to various environmental elements.
Carl White, Application Engineering Manager for Linear and Industrial Automation at Schaeffler, explained that parallel rod-type linear actuators have typically been used for the solar tracking systems. These actuators feature a motor and gearbox which run parallel to the actuator housing and thrust rod.
Unfortunately, this design creates surfaces in which water can collect and cause eventual performance issues for the actuator. Schaeffler’s in-line actuator design overcomes this challenge by reversing the orientation of the actuator — the thrust rod instead faces downward, eliminating the main collection point for water to prevent potential performance issues.
In this interview with Power & Motion, White discusses the design of Schaeffler’s in-line actuator, how it differs from parallel rod-type options and some of the challenges which had to be overcome when developing the actuator.
Read the below content to learn more about the use of motion control technologies in the solar industry.
