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Modeling and simulating method of power supply system of spacecraft

A technology of power supply system and modeling method, which is applied in general control systems, control/regulation systems, instruments, etc., can solve the problems of low efficiency in the design and verification of complex spacecraft power supply systems, improve design and verification efficiency, and shorten the time limit. Time and the effect of reducing labor costs

Active Publication Date: 2018-05-04
BEIJING SPACE TECH RES & TEST CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a modeling and simulation method for the power supply system of a spacecraft, to solve the problem of low efficiency in the design and verification of a complex spacecraft power supply system

Method used

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  • Modeling and simulating method of power supply system of spacecraft
  • Modeling and simulating method of power supply system of spacecraft

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Experimental program
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Embodiment approach

[0041] like figure 1 As shown, according to an embodiment of the present invention, the modeling method of the power supply system of the present invention includes:

[0042] S1. Obtain the system modeling scheme according to the simulation test of the spacecraft power supply system, and generate the modeling plan of the power supply system;

[0043] S2. According to the modeling plan, establish a power supply system model for the spacecraft power supply system.

[0044] In order to describe the present invention in detail, the method of the present invention will be described in detail in conjunction with the accompanying drawings.

[0045] According to an embodiment of the present invention, the modeling process of the power supply system of the present invention is realized by saber software.

[0046] In step S1, such as figure 2 As shown, according to an embodiment of the present invention, the system modeling scheme of the present invention includes: an on-orbit fligh...

example 1

[0049] Example 1: Verification of the gating function of the primary power bus in the third cabin stage

[0050] According to an embodiment of the present invention, the above-mentioned verification is completed through a system model. In this embodiment, the correctness of the power supply deployment strategy in the primary bus gating process in the power supply system is verified, and the steady-state and dynamic characteristics of the bus voltage meet the requirements of the spacecraft construction specification. During the verification process, the verification is mainly carried out through the following aspects: 1. Whether the switch in the bus distributor has completed the power-off and re-selection functions of the bus after executing the command; 2. Whether the steady-state value of the bus voltage in the core cabin is 100V; 3. The bus voltage surge caused by 1kW step load change should not be greater than 5% of the bus voltage, and should return to within 1% of the in...

example 2

[0051] Example 2: MEA parameter changes affect simulation

[0052] According to one embodiment of the present invention, the upper simulation is done through a system model. In this embodiment, the MEA signal of the power supply system is a feedback control signal for controlling the bus voltage, which directly affects the bus voltage and is related to system safety. Therefore, it is necessary to simulate the stability of the bus voltage under the condition that the MEA signal conditioning parameters change. In the verification process, the simulation is mainly carried out through the following aspects: 1. MEA signal and bus voltage and current change values ​​when the adjustment parameters change; 2. Change values ​​of the dynamic characteristic indicators of the bus control when the adjustment parameters change.

[0053] S12. Generate a modeling plan of the power supply system according to the simulated working conditions.

[0054] In step S1, such as figure 2 As shown, ...

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Abstract

The invention relates to a modeling and simulating method of a power supply system of a spacecraft. The method includes the steps of S1, obtaining a system modeling scheme according to a simulating test on the power supply system of the spacecraft, and generating a modeling schedule of the power supply system; S2, establishing a power supply system model for the power supply system of the spacecraft according to the modeling schedule. On the basis of a circuit principle model of a power supply and distribution system and a load, in combination with the system modeling scheme, system modeling,data processing, simulating analyzing and result outputting and displaying are carried out, the power supply system of the manned spacecraft is analyzed and predicted, the verifying and analyzing timeis shortened, labor cost is reduced, and the design and verification efficiency of the power supply system of the spacecraft is improved.

Description

technical field [0001] The invention relates to a modeling and simulation method of a power supply system, in particular to a modeling and simulation method of a spacecraft power supply system. Background technique [0002] The power supply system of manned spacecraft is different from general spacecraft and ground power supply systems due to its complex and large requirements, high reliability requirements, complex working modes, and high cost. In the existing technology, the test timing of the power supply system of manned spacecraft is generally in the comprehensive test stage of the whole device, and the time is relatively late. If there is a problem, it will have an adverse impact on the status of the stand-alone machine and the progress of system development. The current design and development method adopted is to put forward the quality requirements of the busbar and put forward the interface characteristic requirements for the power supply and distribution system and...

Claims

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Application Information

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IPC IPC(8): G05B17/02
CPCG05B17/02
Inventor 蒋冀梁克王宏佳任筱强刘铭梁晓锋丁锐
Owner BEIJING SPACE TECH RES & TEST CENT
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