A Hierarchical Dynamic Inverse Control Method for Aircraft Based on Sliding Mode Disturbance Observer
A technology of interference observer and dynamic inverse control, applied in the field of aircraft control, can solve problems such as inaccurate aircraft system model
Active Publication Date: 2017-01-18
BEIHANG UNIV +1
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The problem solved by the technology of the present invention is: because some aircraft system models are inaccurate and affected by many disturbances, so in order to achieve high-precision control, the present invention provides a hierarchical dynamic inverse control method for aircraft based on a sliding mode disturbance observer, It is a hierarchical dynamic inverse compound control method with interference cancellation performance. A sliding mode interference observer is designed to estimate and compensate multi-source interference, so as to solve the problem of anti-interference tracking controller design of the aircraft system, and ensure the robustness of the system. Under the premise, realize the high-precision tracking control of the system
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0031] Such as figure 1 As shown, the steps of a kind of aircraft hierarchical dynamic inverse control method based on the sliding mode disturbance observer of the present invention are as follows: first establish the multi-source interference system model of the hypersonic vehicle; then design the sliding mode interference observer based on the multi-source interference system model to Multi-source disturbances are estimated online; finally, a hierarchical dynamic inverse compound controller is constructed based on the sliding mode disturbance observer (see figure 2 ). Depend on figure 2It can be seen that the hierarchical dynamic inverse compound controller based on the sliding mode disturbance observer consists of two parts: the inner loop is the feedforward compensator based on the sliding mode disturbance observer, and the outer loop is the hierarchical dynamic inverse feedback controller. Among them, the sliding mode interference observer can estimate multi-source in...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a hierarchical dynamic inverse control method for a flight vehicle based on a sliding mode interference observer. The hierarchical dynamic inverse control method comprises the steps of: 1, by considering multi-source interference suffered by the flight vehicle, building a multi-source interference system model based on an flight vehicle longitudinal dynamics model; 2, designing a sliding mode interference observer and estimating multi-source interference based on the multi-source interference system model built in the first step; the third step, constructing a hierarchical dynamic inverse composite controller based on the sliding mode interference observer in the second step, thus enabling speed and height of the flight vehicle to highly follow a reference instruction while compensating multi-source interference. The hierarchical dynamic inverse control method for the flight vehicle based on the sliding mode interference observer has the advantages of strong anti-interference capability, fast tracking speed, high control precision and the like, thus being applicable to tracking and controlling height and speed of the flight vehicle.
Description
technical field [0001] The invention relates to an aircraft hierarchical dynamic inverse control method based on a sliding mode disturbance observer, which is mainly applied to the speed and height tracking control of an aircraft system and belongs to the technical field of aircraft control. Background technique [0002] At present, some aircraft (such as hypersonic aircraft) have a large flight span and a complex flight environment, so most aircraft systems are affected by multi-source interference. Modular nonlinear dynamics, external disturbances and measurement errors, etc.; so the aircraft control system needs to have a certain degree of robustness. [0003] The composite anti-jamming controller designed by using the control theory method based on the disturbance observer has the ability of canceling the disturbance, which can ensure that the system meets the control performance requirements and at the same time makes the system have certain robustness. At present, for...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G05B13/04
Inventor 郭雷王娜韩惠莲李文硕乔建忠
Owner BEIHANG UNIV