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Space pyranometer sun tracking control method that can reduce system energy consumption

A technology of solar pyranometer and sun tracking, which is applied in the field of sun tracking control, can solve the problem of high energy consumption of the system, and achieve the effect of reducing the energy consumption of the system

Inactive Publication Date: 2018-07-24
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

[0004] In order to solve the problem of continuous and precise tracking of the sun by the existing space pyranometer sun tracking system, the present invention proposes a solar tracking control method for the space pyranometer that reduces system energy consumption

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  • Space pyranometer sun tracking control method that can reduce system energy consumption
  • Space pyranometer sun tracking control method that can reduce system energy consumption

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Embodiment Construction

[0016] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0017] The sun tracking system of the space radiometer can be carried on a sun-synchronous orbit spacecraft, within a certain range of rotation angle, to carry an electric substitution self-calibration radiometer to track the sun together. The electric surrogate self-calibrating radiometer is the core component of the space radiometer to measure the incident sunlight. The electric substitution self-calibration radiometer controls the heating voltage on the cavity detector to change the temperature of the electric substitution self-calibration radiometer cavity detector, so as to complete the solar radiation measurement. The electrical substitution self-calibration radiometer completes a total irradiance measurement of incident sunlight into two stages: receiving optical radiation and electrical calibration.

[0018] In each stage of receiving light radiation...

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Abstract

The space pyranometer sun tracking control method that can reduce system energy consumption belongs to the technical field of solar radiation measurement. Tracking system, so that the sun tracking deviation is less than the predetermined threshold; start the solar measurement mode of each electric substitution self-calibration radiometer in the space pyranometer; Small system deviation requires comprehensive design of the sun tracking system, so that the sun tracking deviation is near zero; in the time period [tn2, tn3], reduce the requirement for the sun tracking deviation in the comprehensive design of the system nonlinear tracking controller, and adjust the system Gradually stop precise sun tracking and keep the sun within the field of view of the tracking system; in the time period [tn3,tn4], the sun tracking deviation requirement is the design requirement of the instrument system.

Description

technical field [0001] The invention relates to a sun tracking control method for a solar radiometer on a solar synchronous orbit spacecraft, and belongs to the technical field of total solar radiation measurement. Background technique [0002] The study of global climate change requires a certain length of time, continuous, high-precision total solar radiation data. The total solar irradiance data is an important meteorological observation data for studying the changes of the Earth's climate system. Since the ground measurement is adversely affected by a series of factors such as the earth's orbital movement, the disturbance of the earth's atmosphere, aerosols, water vapor, and atmospheric refraction, it is difficult to obtain continuous and high-precision total solar radiation data on the ground. The space total solar radiation measurement can remove the adverse effects of many factors such as the earth's orbital motion and the earth's atmosphere, and provides a reliable ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D3/12
CPCG05D3/12
Inventor 王红睿方伟
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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