Semi-physical simulation method of inertially stabilized platform control system

Abstract

The invention provides a semi-physical simulation method of an inertially stabilized platform control system. Pure mathematics simulation is real difficultly in the design of the inertially stabilized platform control system, the cost of real object experiments is high, and models are difficult to change. A digital model portion and a real object portion are used in the method, wherein the digital model portion is used for modeling detection feedback links of a kinetic model, a posture control law, revolving speed and an angular position of a stabilized platform and converting the detection feedback links into real-time procedures; a current value measured by the real object portion is corrected into output torque of an executing mechanism; the output torque is substituted into a digital model to obtain an armature voltage expected value of the next moment; the armature voltage expected value is transmitted to a hardware portion; and the real object portion comprises a controller, a driving circuit and a current detecting circuit. The problem that a real effect is difficult to achieve when mathematical simulation is carried out by the real object portion is solved. The semi-physical simulation method of the inertially stabilized platform control system has advantages of high instantaneity of the real object experiments, high degree of confidence and convenience, flexibility and economy in mathematical simulation. A design period of the inertially stabilized platform control system can be shortened, and the cost is reduced.

Description

technical field [0001] The invention relates to a semi-physical simulation method of an inertial stable platform control system, which is used to overcome the shortcomings of the mathematical simulation in the design process of the inertial stable platform control system that is difficult to achieve the desired effect, high cost and long cycle of physical experiments, and is suitable for reducing inertia Stabilize the design cost of the platform control system and shorten the development cycle. Background technique [0002] High-resolution earth observation systems are widely used in military reconnaissance, basic surveying and mapping, disaster monitoring and other fields. In order to realize the ideal observation of the earth, it is required that the camera load can be kept stable. However, due to the influence of factors such as atmospheric turbulence and self-disturbance, it is difficult for the camera load to maintain an ideal stable state, which makes the visual axis u...

AI Technical Summary

Problems solved by technology

[0003] A high-confidence, convenient and economical simulation method is of great significance to the design of a stable platform control system. In traditional control theory research, Matlab / Simulink can be used to conveniently design and simulate control laws, but most of the current Simulink simulations are non- Real-time simulation, that is, pure mathematical modeling and simulation, the hardware link in the control system is replaced by a mathematical model, which often fails to achieve the expected ideal simulation effect

However, physical experiments cannot evaluate real-time parameters such as memory, interface, and communication, so designers must constantly make adjustments to their own designs, and the development cycle is relatively long

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