Design method of spacecraft power distribution system capable of being maintained on orbit
A power distribution system and design method technology, applied in computer-aided design, design optimization/simulation, instruments, etc., can solve problems such as load equipment not working normally, spacecraft not being able to complete tasks, etc.
Pending Publication Date: 2019-07-19
BEIJING SPACE TECH RES & TEST CENT
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Problems solved by technology
As a stand-alone device, the distribution device has more failure modes than the cable network. The failure of one distribution device means that the load equipment in a certain area may not work normally, and the corresponding spacecraft may not be able to complete a certain task.
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[0035] According to an embodiment of the present invention, after a fault occurs in a single power distribution unit, the faulty equipment should be isolated before maintenance to avoid greater damage caused by fault propagation. The power distribution system is the energy network of the spacecraft. The power distribution system is usually in the long-term power-on mode and cannot be easily isolated from the power. Even during on-orbit maintenance, key functions such as energy information of the spacecraft still need to work normally and cannot be lost. Therefore, the on-orbit maintenance design of the power distribution system should consider that it can still provide the electric energy required for the basic work of the entire spacecraft during maintenance. Performing on-orbit repairs under high power loads creates hazards. This requires the identification of the minimum working mode of the spacecraft.
[0036] In the present invention, the minimum working mode is the mini...
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The invention relates to a spacecraft power distribution system design method based on maintainability. The spacecraft power distribution system design method comprises the following steps: a, designing a spacecraft power distribution system with a fault diagnosis function and a fault position positioning function; b, performing power-off isolation on the positioned faulty equipment; and c, carrying out maintenance safety design on the spacecraft power distribution system. According to the spacecraft power distribution system design method based on maintainability, a basic unit of a spacecraftpower distribution system is taken as an example, each link in the basic unit of the power distribution system is optimally designed from the perspective of on-orbit maintenance, an improved topologyfor realizing on-orbit maintenance is provided, and the working mode of the improved topology is analyzed.
Description
technical field [0001] The invention relates to the field of design of spacecraft power distribution systems, in particular to a design method for an on-orbit repairable spacecraft power distribution system. Background technique [0002] The development and operation of spacecraft are characterized by high investment and high risk. However, in general, on-orbit failures of spacecraft are usually caused by problems with individual components, and the loss of scrapping the entire vehicle is too large. As early as the 1960s, space powers such as the United States and Russia carried out research on the on-orbit maintenance of spacecraft by astronauts. At present, there have been many years of space station maintenance history. They have accumulated rich experience in the on-orbit maintenance of spacecraft. . During the manned rendezvous and docking mission between the Shenzhou spacecraft and the Tiangong Space Laboratory, my country has also successfully carried out the on-orbi...
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CPCG06F30/15G06F30/20
Inventor 杜占超陈丹王志莹李慧军陈乘新程天然仪德英吴京松陈恒智姜文彩王玮周垚武逸然沈朝阳
Owner BEIJING SPACE TECH RES & TEST CENT