Device and method for power system MPPT control for satellite

A technology of power supply system and control device, applied in circuit devices, battery circuit devices, current collectors, etc., can solve the problem of difficulty in tracking the maximum power of microsatellites, and achieve the effects of light weight, less MPPT control circuits, and fewer components

Inactive Publication Date: 2015-08-26
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention is to solve the problem that the existing satellite power supply system has difficulty in tracking the maximum power of micro-satellites, and proposes a satellite power supply system MPPT control device and method

Method used

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  • Device and method for power system MPPT control for satellite

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specific Embodiment approach 1

[0018] Specific implementation mode 1. Combination figure 1 Describe the present embodiment, a kind of satellite power system MPPT control device described in the present embodiment, it comprises solar cell array 1, MPPT control circuit 2, No. 1 diode 31, No. 2 diode 32 and lithium-ion battery pack 4;

[0019] The forward power signal output end of the solar cell array 1 is connected to the anode of the first diode 31, and the cathode of the first diode 31 is simultaneously connected to the input end of the power tracking signal of the MPPT control circuit 2, the cathode of the second diode 32 and the forward power supply of the load The signal input terminal and the power signal output terminal of the MPPT control circuit 2 are simultaneously connected to the anode of the second diode 32 and the positive pole of the lithium-ion storage battery pack 4, the negative pole of the lithium-ion storage battery pack 4 is grounded, and the negative power supply signal output terminal o...

specific Embodiment approach 2

[0026] Embodiment 2. This embodiment is a further description of the MPPT control device for a satellite power supply system described in Embodiment 1. The MPPT control circuit 2 works in an unregulated bus way.

[0027] In this embodiment, the solar battery array is directly connected to the satellite load through the first diode, and the lithium-ion battery pack is directly connected to the satellite load through the second diode. When the energy provided by the solar battery array does not meet the load requirements, the lithium-ion The ion battery pack supplies power to the load;

specific Embodiment approach 3

[0028] Embodiment 3. This embodiment is a further description of the MPPT control device for a satellite power supply system described in Embodiment 1 or 2. The MPPT control circuit 2 is a super step-down topology circuit.

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Abstract

The invention provides a device and a method for power system MPPT control for a satellite, and solves a problem that an existing power system used for a satellite is difficult to track maximum power of a microsatellite. The forward power signal output end of a solar cell array is connected with the anode of a first diode, the cathode of the first diode is connected with the power tracking signal input end of a MPPT control circuit, the cathode of a second diode, and the forward power signal input end of a load. The power signal output end of the MPPT control circuit is connected with the anode of a second diode and the anode of a lithium ion battery pack. The cathode of the lithium ion battery pack is connected with ground. The negative power signal output end of the solar cell array is connected with the negative power signal input end of the load and ground at the same time. The device and the method are suitable for power system control used for satellites.

Description

technical field [0001] The invention relates to the field of space power supply technology, in particular to a control device for a satellite power supply system. Background technique [0002] The advanced idea of ​​micro-satellite power system design is miniaturization and integration. At the same time, in recent years, microsatellites have put forward the goals of high technical performance, strong flexibility, low cost, light weight and small volume for the power supply subsystem. However, the existing power supply system for satellites has the problem of difficulty in tracking the maximum power of micro-satellites. Contents of the invention [0003] The invention aims to solve the problem that the existing satellite power supply system has difficulty in tracking the maximum power of micro-satellites, and proposes a satellite power supply system MPPT control device and method. [0004] A kind of satellite power supply system MPPT control device of the present inventio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/35
CPCY02E10/56
Inventor 林晓辉周明中蔡晟杨军武
Owner HARBIN INST OF TECH
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