A Dynamic System Control Method Based on Variational Mode Decomposition
A variational modal decomposition, dynamic system technology, applied in attitude control, non-electric variable control, adaptive control and other directions, can solve the problems of poor control accuracy and dynamic response effect, and achieve fast dynamic response capability and good control accuracy. Effect
Active Publication Date: 2022-01-07
HARBIN INST OF TECH
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[0004] Aiming at the problems of poor control accuracy and dynamic response effect of existing dynamic system control methods, the present invention provides a dynamic system control method based on variational mode decomposition
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[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0036] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0037] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.
[0038] like figure 1 As shown, the dynamic system control method based on variational mode decomposition in thi...
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A dynamic system control method based on variational mode decomposition solves the problems of poor control accuracy and dynamic response effect of existing dynamic system control methods, and belongs to the technical field of dynamic system control. The present invention comprises: S1, establishes the kinematic equation of dynamic system; S2, establishes the dynamic equation of dynamic system; S3, determines the initial PID controller parameter of dynamic system according to kinematic equation and dynamic equation, collects error signal as sliding window assignment Initial value; S3, use the sliding window to extract the error signal of the current time and the set number of data points before the current time, and obtain the integral signal and differential signal of the error, and transform the error signal, the integral signal of the error, and the differential signal of the error respectively Sub-mode decomposition processing, each signal obtains corresponding K fundamental modal signals of different frequency bands; S4, for the fundamental modal signals of different frequency bands contained in the error signal, different control strengths are used to control the dynamic system.
Description
technical field [0001] The invention relates to a dynamic system control method based on variational mode decomposition, and belongs to the technical field of dynamic system control. Background technique [0002] Dynamic systems such as aircraft, marine vehicles, and land mobile machines are increasingly widely used in industrial production, home services, life entertainment, and military warfare. In particular, the development of land, sea, and air unmanned mobile platforms has greatly liberated and improved productivity. A good controller is the guarantee for the continuous and stable operation of the dynamic system. It can not only ensure the reliability of the system, save costs, improve economic benefits, but also control the dynamic system to complete more complex tasks. Compared with mobile platforms on land and water, space vehicles have a more flexible movement space and have broader production and living needs in the future, which is an important development direct...
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IPC IPC(8): G05B13/04G05D1/08G05D1/10
CPCG05B13/04G05D1/0825G05D1/101
Inventor 高会军李湛李苑杨学博郑晓龙
Owner HARBIN INST OF TECH