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A power supply structure for a stratospheric aerostat

An aerostat and stratospheric technology, which is applied in the field of aviation aerostats, can solve problems such as difficulty in meeting requirements, and achieve the effects of improving reliability and maintaining stable bus voltage.

Active Publication Date: 2021-04-30
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Stratospheric aerostats are sensitive to load-carrying weight, setting of the center of gravity, and time in the air. This puts forward new requirements for the weight distribution and long-term stable operation of the aerostat power distribution system. The previous aircraft power supply design The program has been difficult to meet the requirements

Method used

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  • A power supply structure for a stratospheric aerostat
  • A power supply structure for a stratospheric aerostat

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Such as figure 1 As shown, it is a schematic diagram of the overall functional structure of a stratospheric aerostat power supply structure of the present invention, including a first power supply unit and a second power supply unit with the same structure.

[0014] The first power supply unit includes a first solar battery array, a first unidirectional DC converter, a first bidirectional DC converter, and a first energy storage battery, which are electrically connected in sequence. Between the first solar cell array and the first unidirectional DC converter, and between the first bidirectional DC converter and the first energy storage battery, isolating switches (switch 1, switch 8) are respectively provided for when the first When the solar battery array or the first energy storage battery fails, the isolation switch is turned off to electrically isolate the failed components. The output terminal of the first unidirectional DC converter and the left output terminal o...

Embodiment 2

[0018] Such as figure 2 As shown, it is a schematic diagram of the installation structure of a stratospheric aerostat power supply structure installed on the aerostat according to the present invention. Described stratospheric aerostat comprises the buoyancy capsule body 1 that is used to provide lift, and the upper surface of described buoyancy capsule body 1 is provided with first solar cell array 11 and second solar cell array 21; The lower part is also provided with a first energy cabin 10 for installing the first unidirectional DC converter, the first bidirectional DC converter and the first energy storage battery, and for installing the second unidirectional DC converter and the second bidirectional DC converter. The second energy cabin 20 of the device and the second energy storage battery. The positions of the first energy compartment 10 and the second energy compartment 20 can be determined according to the design requirements of the center of gravity of the aerosta...

Embodiment 3

[0020] This embodiment provides the working state of the power supply structure of the stratospheric aerostat described in Embodiment 1 and the logic control mode of multiple switches.

[0021] 1. Normal working mode

[0022] Such as figure 1 As shown, when all components are fault-free, switch 3 and switch 10 are open, and the remaining switches are closed. At this time, the first power supply unit and the second power supply unit work independently and jointly provide power for the bus load. That is, the electric energy generated by the first solar battery array and the second solar battery array is transformed by the first unidirectional DC converter and the second unidirectional DC converter respectively, and then sent to the bus bar in parallel to supply power for the bus load. At the same time, the first energy storage battery and the second energy storage battery are connected in parallel with the bus bar through the first bidirectional DC converter and the second bidi...

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Abstract

A stratospheric aerostat power supply structure includes a first power supply unit and a second power supply unit; the first power supply unit includes a first solar cell array, a first unidirectional DC converter, and a first bidirectional DC which are electrically connected in sequence A converter and a first energy storage battery; the second power supply unit adopts the same electrical connection structure as the first power supply unit. A stratospheric aerostat power supply structure of the present invention includes two independent power supply units, which can be installed in a distributed manner to meet the requirements for adjusting the center of gravity of the aerostat; the same components of the two independent power supply units are controlled in parallel through a controllable parallel connection. Redundant backup is realized by means of the method, which realizes the fault isolation function at the component level and the component backup function between the two power supply units, which improves the reliability of the system operation; it has a variety of working modes to ensure that the bus voltage is always stable.

Description

technical field [0001] The invention belongs to the technical field of aviation aerostats, and relates to a power supply structure of a stratospheric aerostat. Background technique [0002] Stratospheric aerostats represented by high-altitude balloons and stratospheric airships have the advantages of long stagnation time, wide coverage, and low operating costs, and have achieved rapid development and wide application in recent years. Stratospheric aerostats are sensitive to load-carrying weight, setting of the center of gravity, and time in the air. This puts forward new requirements for the weight distribution and long-term stable operation of the aerostat power distribution system. The previous aircraft power supply design The program has been difficult to meet the requirements. By optimizing the power supply structure of the stratospheric aerostat, its load capacity can be further improved and its stagnation time can be extended. Contents of the invention [0003] The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/35
CPCH02J7/35Y02E10/56
Inventor 孙康文
Owner BEIHANG UNIV
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