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Passive fault tolerance method of stratospheric airship

A stratospheric airship, fault-tolerant control technology, applied in the direction of non-electric variable control, attitude control, control/regulation system, etc., can solve problems such as the failure of the actuator without consideration

Active Publication Date: 2017-07-07
北京天恒长鹰科技股份有限公司
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Problems solved by technology

[0004] However, in the above-mentioned methods, the failure of the actuator (such as the rudder surface and the power system) has not been considered.

Method used

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  • Passive fault tolerance method of stratospheric airship
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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the embodiments and accompanying drawings.

[0033] The stratospheric airship passive fault-tolerant control method of the present invention first carries out mathematical modeling to a kind of stratospheric airship, then carries out mathematical modeling to the failure situation of airship executive mechanism, then utilizes backstepping method and Lyapunov stability based on the mathematical model Criterion is used to design the fault-tolerant controller, so that it can still complete the basic flight tasks such as path tracking in the case of actuator failure.

[0034] 1. First, establish the mathematical model of the airship according to the layout of the stratospheric airship.

[0035] 1. Establish figure 1 The ground coordinate system (ERF) and airframe (BRF) coordinate systems are shown. The coordinate origin O of the ground coordinate system g Choose a point fixed on the ground, O g x ...

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Abstract

The invention relates to a passive fault tolerance method of a stratospheric airship. The method comprises: (1), (1) carrying out mathematical modeling of a stratospheric airship; (2) carrying out mathematical modeling on a failure situation of an airship actuator; (3) on the basis the mathematical models, carrying out tolerance controller designing by using a backstepping method and a Lyapunov stability criterion. The control method has the following advantage: the stratospheric airship still can carry out basic flight tasks like path tracking under the circumstances that the actuator fails to work partially and no system redundancy is provided.

Description

technical field [0001] The invention relates to the field of automatic control, in particular to an automatic control method for a stratospheric airship. Background technique [0002] Near space refers to the airspace 20-100km from sea level, including the stratosphere, middle atmosphere and part of the ionosphere, which is between the flight altitude of aircraft and the orbital altitude of spacecraft, and is a new field that bridges aviation and aerospace. With the rapid development of aerospace technology, space offensive and defensive confrontation has become increasingly fierce, human beings have gradually deepened their understanding of space security, and the unique strategic significance of adjacent space has become increasingly prominent. The development and utilization of this airspace is becoming the focus of attention of all countries. Stratospheric airship refers to an aircraft that uses buoyant gas (such as helium, hydrogen, etc.) to provide static lift, relies ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D1/08G05D1/10B64B1/00
CPCB64B1/00G05D1/0808G05D1/101
Inventor 赵磊
Owner 北京天恒长鹰科技股份有限公司
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