Energy balance analysis method of moonlet power supply system

A technology of energy balance and satellite power supply, which is applied in the field of satellite power supply system

Pending Publication Date: 2022-04-29
BEIHANG UNIV
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Problems solved by technology

[0004] Through research, it is found that in the existing patents, it has not been found that the on-orbit operating parameters of the solar array are corrected by obtaining the sunlight angle and combined with the operating temperature of the solar array for temperature compensation, and the real-time calculation of the battery array power and load power consumption is performed according to the flight process. , and in this process, the satellite can switch the working mode autonomously, and finally simulate and analyze the energy balance of the whole process of the flight mission

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  • Energy balance analysis method of moonlet power supply system
  • Energy balance analysis method of moonlet power supply system
  • Energy balance analysis method of moonlet power supply system

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Embodiment Construction

[0031] In order to further illustrate the technical solution of the present invention and make the technical solution of the present invention clearer and more complete, the following details are as follows:

[0032] Step 1: Input the orbital parameters and power requirements, and carry out the preliminary design of the solar array.

[0033] Calculate the energy provided by the solar array to the entire satellite during the entire orbital period when the sun is shining:

[0034]

[0035] Here, P e and P s Respectively, the required power of the satellite in the shadow area and sunshine area, including regulation and battery charging loss; τ e and τ s Respectively, the duration of the shadow area and the sunshine area in each cycle; X e and X s Respectively represent the efficiency of the two paths of energy from the solar cell array to the load through the battery and from the solar cell array to the load directly.

[0036] The power generation of the satellite at the...

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Abstract

The invention provides an energy balance analysis method for a moonlet power supply system. The energy balance analysis method specifically comprises the following steps: (1) designing a solar cell array; (2) setting different working modes according to the working process of the satellite, and determining the voltage and power required by the corresponding mode, so as to realize mathematical modeling of the energy balance problem of the whole satellite; (3) inputting the number of satellite initial orbits, determining a satellite attitude mode, and establishing a satellite on-orbit model; (4) calculating a solar incident angle on the surface of the solar cell array, and obtaining the surface temperature of the solar cell array; (5) calculating actual working parameters of the solar cell array by using a temperature compensation algorithm; (6) establishing a power supply system model, and inputting the working parameters of the battery array obtained in the step (5) into the power supply system model; and (7) different working modes of the satellite are controlled through the time sequence parameters 0 and 1 of the flight sequence of the corresponding task, and the real-time working condition of the power supply system is acquired and analyzed.

Description

technical field [0001] The invention relates to the field of satellite power supply systems, in particular to a method for analyzing the energy balance of a low-orbit satellite. Background technique [0002] The satellite power system is an essential support system for the normal operation of active equipment on the planet. Its function is to complete the generation, storage, adjustment and energy distribution of other on-board equipment. The satellite power system has always been in the design of satellites. All occupy key positions. However, due to the limitations of ground testing methods and the harsh external space environment where satellites work in orbit for a long time, the reliability of the power supply system will inevitably be affected. [0003] Faced with many constraints such as mass, volume, thermal protection, and cost, maximizing the efficiency, safety, and reliability of the power system has become the biggest challenge in power system design. At present...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/15G06F30/18G06F30/20H02J7/35G06F111/10G06F119/08
CPCG06F30/15G06F30/20G06F30/18H02J7/35G06F2119/08G06F2111/10
Inventor 王新升孙培钊谢萌康承玮
Owner BEIHANG UNIV
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