Agile maneuvering and fast stable control method of three-super platform

A stable control method and agile maneuvering technology, which can be applied to motor vehicles, attitude control, space navigation equipment, etc., and can solve the problems of difficult to achieve agile maneuvering and fast stable control of loads, and long stabilization time.

Active Publication Date: 2018-10-12
BEIJING INST OF CONTROL ENG
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  • Summary
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  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 2. It is difficult to realize agile maneuvering and fast and stable control of load
If the effects

Method used

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  • Agile maneuvering and fast stable control method of three-super platform
  • Agile maneuvering and fast stable control method of three-super platform
  • Agile maneuvering and fast stable control method of three-super platform

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Experimental program
Comparison scheme
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Embodiment Construction

[0092] The present invention adopts figure 1 The flow shown completes the agile maneuvering and fast and stable control of the three-super platform. The specific method is as follows:

[0093](1) The three-super platform includes a star, a load, a sensor, and an actuator; the actuator includes: a control moment gyroscope group, and an active pointing super-static platform actuator; the sensor includes: a gyroscope installed on the star , the star sensor installed on the load, the micrometric sensor installed on the load, the eddy current of the active pointing ultra-static platform actuator installed on the load; the star is used to support the active pointing ultra-static platform and the load; the active pointing ultra-static platform is installed Between the payload and the star, it consists of six actuators.

[0094] (2) Establish the displacement constraint model of active pointing ultra-static platform as follows:

[0095] L p =J p x p +J b x b

[0096] In the fo...

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Abstract

The invention provides an agile maneuvering and fast stable control method of a three-super platform, and is applied to the field of very high resolution ratio earth observation, space-aeronautics moving target agile tracking and the like with load agile maneuvering and fast stable demands. The designed three-super platform comprises astral first-level attitude control and active pointing ultra quiet platform second-level control. During large-angle fast maneuvering, active attitude control is carried out on astral first level to achieve 6 (degrees per second) of agile maneuvering, and an active pointing ultra quiet platform performs passive vibration isolation control. When the astral first-level attitude is maneuvering in place and a loaded attitude error is in a control range of the active pointing ultra quiet platform, a polynomial planning method is adopted to perform smooth transition on loaded deviation attitude delta theta p after maneuvering in place, and the active pointing ultra quiet platform second-level control is carried out to achieve fast and stable loading. The simulation result shows that load fast stable time is superior to 2.5 seconds, and the stable time of anastral platform is 6 seconds.

Description

technical field [0001] The invention belongs to the field of attitude control of spacecraft, and relates to a control method for realizing agile maneuvering and fast stability of a three-super-platform. Background technique [0002] With space-based astronomical observation, extremely high-resolution earth observation and other spacecraft missions, the "three super" control requirements such as ultra-high-precision pointing, ultra-high stability control, and ultra-agile control of optical loads have been put forward. In particular, the extremely high-resolution earth observation space mission proposes the ability to realize fast maneuvering and fast stability of agile satellites, thereby improving the imaging speed and imaging quality of optical payloads. Traditional spacecraft are limited by factors such as sensor measurement bandwidth and actuator response bandwidth, and it is difficult to meet the "three super" control requirements of optical loads. In response to this p...

Claims

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Application Information

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IPC IPC(8): G05D1/08
CPCB64G1/244
Inventor 关新汤亮王有懿张科备郝仁剑田科丰
Owner BEIJING INST OF CONTROL ENG
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