Cải tiến bù thích ứng cho máy bay chiến đấu biến thể với nhiều lỗi thông qua quan sát viên mở rộng

Kaiyu Hu1, Wenjing Sun1, Zian Cheng2
1Beijing Jinghang Computation and Communication Institute, China Aerospace Science and Industry Corporation, Beijing, China
2Nanjing University of Aeronautics and Astronautics, Nanjing Jiangsu, China

Tóm tắt

Nghiên cứu này nhằm phát triển một hệ thống điều khiển chịu lỗi để giải quyết thách thức sửa chữa tự động đa lỗi trong các điều kiện bay có cấu trúc biến đổi của máy bay chiến đấu. Trong hệ thống máy bay chiến đấu cổ điển, gia tăng của tham số trạng thái được sử dụng để biểu thị tham số cấu trúc biến đổi. Để minh họa khả năng áp dụng rộng rãi của kỹ thuật này, các lỗi mất mát và thiên lệch cảm biến và bánh lái được xây dựng. Quan sát viên mở rộng được thiết kế để đồng thời đo lường lỗi, trạng thái và nhiễu. Hơn nữa, các hàm điều hòa được thiết kế để nhanh chóng thích nghi với sự thay đổi cấu hình của máy bay chiến đấu, các nhiễu biến đổi theo thời gian, và để ước lượng tất cả các lỗi. Các hàm điều hòa tương tự cũng xuất hiện trong thiết kế của các thuật toán tự sửa chữa lỗi, tức là, các bộ điều khiển chịu lỗi thích ứng với các hàm điều hòa biến đổi, đồng thời sửa chữa lỗi mất mát và thiên lệch của bánh lái và cảm biến. Việc xác minh tính hiệu quả của phương pháp được thực hiện thông qua các mô phỏng bán vật lý, trong khi hàm Lyapunov chứng minh tính ổn định của hệ thống.

Từ khóa


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