Azimuth control system and method for suspension platform system

Abstract

The invention provides an azimuth control system and method for a suspension platform system, and the system and method provided by the invention are suitable for carrying out azimuth control on a suspension platform loaded with load which is high in azimuth maneuverability and larger in rotational inertia. Aiming at the problem of lower data update frequency of an azimuth position sensor, a platform azimuth speed control ring which utilizes a sampling signal of an angle rate gyroscope as feedback is additionally arranged in a suspension platform azimuth position control loop. The specific implementation method is as follows: firstly measuring frequency characteristics from the input signal of a power amplification device to the output signal of the gyroscope and designing a control algorithm according to the frequency characteristics; and after completing speed closed loop, designing an azimuth position controller according to the frequency characteristics of the system subjected to speed closed loop. The angle rate gyroscope is higher in data update rate, and the bandwidth of the angle speed control ring is generally greater than that of an angle position control ring, thus according to the invention, the response speed and servo rigidity of a suspension platform azimuth position control ring can be improved, and the antijamming capability of the azimuth control system can be improved.

Description

technical field [0001] The invention belongs to the field of control engineering, in particular to an azimuth control system of a suspended platform system and a method thereof. Background technique [0002] Suspension platforms based on high-altitude floating carriers such as balloons and airships refer to equipment platforms that are suspended under the floating carriers through flexible connections. They have broad application prospects in scientific fields such as astronomical observation, meteorology, remote sensing, and high-energy physics. The suspension platform is usually suspended 10-100 meters below the carrier, and it is usually called a "hanging basket" when it only carries instruments and equipment. According to the experimental data conducted by the Beijing Astronomical Observatory of the Chinese Academy of Sciences (Ye Xiangming, doctoral dissertation "Research on High-precision Attitude Control and Pointing Technology of Large Spherical Telescopes"), the ran...

AI Technical Summary

Problems solved by technology

For loads with high azimuth mobility and large moment of inertia, when the load rotates, it is difficult to stabilize the azimuth angle of the platform within a given range by using a single azimuth position control loop

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