An ultra-high voltage multi-network hybrid bus power transmission system suitable for space power stations

A power transmission and ultra-high voltage technology, which is applied in battery circuit devices, information technology support systems, collectors, etc., can solve problems such as high risk and technical difficulty, meet the requirements of reducing reliability, and reduce the risk of power station paralysis Effect

Active Publication Date: 2021-12-07
CHINA ACADEMY OF SPACE TECHNOLOGY
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Problems solved by technology

[0004] Affected by the space environment, the power supply voltage of the solar cell array is greatly limited. The current bus voltage of the spacecraft does not exceed 200V. It is expected that the future development may reach 500V, but further improvement will bring great technical difficulty and extremely high risks of

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  • An ultra-high voltage multi-network hybrid bus power transmission system suitable for space power stations
  • An ultra-high voltage multi-network hybrid bus power transmission system suitable for space power stations
  • An ultra-high voltage multi-network hybrid bus power transmission system suitable for space power stations

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Embodiment Construction

[0031] The present invention proposes a high-voltage multi-network hybrid bus power transmission and management system scheme suitable for space power stations, which simultaneously satisfies microwave wireless energy transmission, attitude and orbit control, thermal control, and information and system operation management in the space power transmission system Multiple sub-systems have different requirements for voltage and power; the solar cell sub-array adopts a distributed power transmission and management method, and each sub-array forms an independent power transmission channel through an independent conductive rotary joint, thereby forming a distributed power generation The system, through the series connection of multiple conductive rotary joints and the confluence of the main busbar, reduces the reliability requirements of the space power station for the solar cell array, thereby reducing the risk of paralysis of the entire power station due to the failure of a certain ...

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Abstract

An ultra-high-voltage multi-network hybrid bus power transmission system suitable for space power stations, mainly composed of three parts: solar cell array area, main structure power transmission area and transmitting antenna array area. Among them, the high-voltage bus bar is divided into: solar cell array area 500V battery sub-array medium voltage busbar, 5000V battery array main busbar high-voltage busbar and 100V battery array service busbar; main structure power transmission area 5000V power transmission busbar and main structure 5000V service busbar; transmitting antenna array area microwave transmitting antenna array 5000V high voltage Busbar, 5000V service busbar. Realized the centralized power management of distributed solar cell arrays; reduced the power loss caused by the low-voltage system of high-power spacecraft facilities; met the needs of microwave wireless energy transmission, attitude and orbit control, thermal control, and information and communication in the space power transmission system. Different requirements for voltage and power of multiple sub-systems such as system operation management.

Description

technical field [0001] The invention relates to an ultra-high voltage multi-network hybrid bus power transmission system suitable for space power stations, which is used for high-voltage and high-power power transmission and management of space solar power stations. Background technique [0002] The traditional spacecraft power supply system mainly includes a solar array power generation system and a power management system. The bus voltage level is mainly determined by the power supply voltage of the solar array, and is adjusted by the power management equipment to meet the power supply requirements of the entire star. The power of general satellites is on the order of kilowatts, and the corresponding power supply bus voltage is 28V and 42V. The power supply power of geosynchronous orbit satellites represented by high-power communication satellites has reached or exceeded 10kW, and the power supply voltage has been raised to 100V. The power supply voltage reaches about 170V...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J50/23H02J50/40H02J7/35H02J13/00
CPCH02J50/23H02J50/402H02J7/35H02J13/00022Y02E60/00Y04S40/124Y04S40/126
Inventor 王立侯欣宾刘自立
Owner CHINA ACADEMY OF SPACE TECHNOLOGY
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