China first solar exploration satellite “Xihe” utilizes a 1200W wireless power supply

China’s first solar exploration science and technology test satellite “Xihe” was successfully launched on October 14 on the Long March 2D rocket at the Taiyuan Satellite Launch Center. This satellite is equipped with a number of advanced technologies, developed by the Eighth Academy of Aerospace Science and Technology Group, and will receive the world’s first full-day Hα-band spectral imaging observation.

According to the officials, the satellite was developed by the 811 Institute of the Eighth Academy of China Aerospace Science and Technology Corporation to undertake the entire satellite energy collection, storage, and distribution tasks. This is the first domestic scientific experiment satellite project to realize the application of high-power, high-reliability, and high-efficiency wireless energy transmission technology, with 1200W high power and 50V-100V voltage range.

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For the first time, the satellite realizes an intelligent and integrated design system solution for energy collection, energy storage, energy control management, and secondary power distribution. Chen Qiang, the chief designer of the satellite radio transmission subsystem of the 811 Institute of Aerospace Science and Technology, introduced that in space, solar panels and batteries provide direct current.

During the wireless energy transmission process of the payload bay and the platform bay, need to go through a conversion process from DC to AC to a magnetic field, and then from magnetic field to AC to DC. The successful application of wireless energy transmission technology on satellites has further improved the influence of 811 in the field of international space aerospace power supply.

Furthermore, the “Xihe” satellite has also applied maglev technology to achieve a detachable configuration design for the platform cabin and the loading cabin, which can achieve ultra-high pointing accuracy, ultra-high stability, and improve observation capabilities.