Recent advancements in space-based energy transmission have the potential to revolutionize how satellites receive power, thanks to a new method developed by researchers at Chongqing University. Led by Xinyue Hou from the School of Microelectronics and Communication Engineering, this innovative approach focuses on enhancing the accuracy of beam-pointing measurement in wireless energy transmission from Space Solar Power Stations (SSPS) to satellites.
As the demand for energy supply in satellite platforms grows, traditional solar arrays face limitations due to factors like size, orientation, and mechanical control. This has created a pressing need for alternative power supply methods. The research highlights the promise of microwave wireless energy transmission technology, which allows energy to be delivered without physical connections, reducing transmission losses.
The newly proposed bi-directional beam-pointing measurement method addresses key challenges in energy transmission efficiency. Current methods often overlook critical factors like antenna positioning and structural deviations, which can lead to significant energy loss. The innovative technique combines interferometer goniometry for guiding beam measurement and power field reconstruction for energy beam offset measurement.
Simulation results indicate that this new method achieves a guiding beam-pointing measurement accuracy of 0.05°, surpassing the traditional accuracy of 0.1°. Additionally, the precision for measuring the offset distance of the energy center is better than 0.11 meters, and the offset angle measurement accuracy is improved to better than 0.012°. This level of precision is crucial for ensuring that energy beams are accurately directed to their intended targets, which is essential for maximizing energy transfer efficiency and preventing potential interference with surrounding equipment.
Xinyue Hou emphasized the significance of these findings, stating, “The method not only provides an accurate direction for the energy transfer system but also measures the energy offset angle for energy transfer correction when the energy transfer beam is shifted.” This capability could pave the way for more reliable and efficient energy delivery systems in space.
The implications of this research extend beyond just satellite operations. As the energy sector increasingly looks towards sustainable and innovative solutions, the technology developed could be adapted for various applications, including powering remote installations, electric vehicles, and even future space missions. The ability to transmit energy wirelessly over long distances opens up commercial opportunities for companies involved in energy generation and distribution.
Published in the journal Sensors, this research represents a significant step forward in the quest for efficient space-based energy solutions. The findings not only highlight the potential for improved satellite operations but also suggest a future where energy can be transmitted wirelessly to meet the growing demands of various industries.
