Design method of hybrid airship control system based on DDPG

By designing a trajectory control overload command tracking subsystem and an attitude stabilization subsystem based on the DDPG method, the coupling and interference problems between actuators in a helicopter/air hybrid aircraft were solved, and a more efficient control effect was achieved.

CN116383968BActive Publication Date: 2026-07-24NORTHWESTERN POLYTECHNICAL UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
NORTHWESTERN POLYTECHNICAL UNIV
Filing Date
2023-04-03
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing direct/aerodynamic hybrid vehicle control systems neglect the strong coupling between different actuators and the uncertainties caused by jet interference, resulting in poor control performance. Furthermore, they often only consider a single aerodynamic control system, ignoring the coordination issues of the direct force mechanism.

Method used

Using a DDPG-based approach, a track control overload command tracking subsystem and an attitude stabilization subsystem are designed. By combining classical control theory and reinforcement learning, the side jet interference and installation errors of the track control engine are handled, and the actuators of the rudder, attitude engine and track engine are coordinated to achieve effective control under multi-jet conditions.

Benefits of technology

It improves the coordination capability of the aircraft control system, enabling it to better track high overload commands, reduce control resource consumption, and enhance control accuracy and system stability.

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Abstract

The application provides a design method of a direct / air combined aircraft control system based on DDPG, and belongs to the technical field of aerospace, and comprises the following steps: obtaining a mathematical model of a related system of a track control engine according to a mapping relationship between a constant flow track control engine valve opening and a track control direct force thrust size, designing a track control overload instruction tracking subsystem based on a classical control method; establishing a dynamics equation of a direct / air combined control system, and deriving a short-period missile body transfer function considering side jet interference; combining an actuator and constraint conditions of each state variable, designing an attitude stabilizing subsystem based on a DDPG method, and completing the design of the control system. The method introduces DDPG reinforcement learning, considers several couplings and interferences including side jet interference and track control engine installation errors, and well handles the couplings and interferences.
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