2 Loop Nonlinear Dynamic Inversion Fuel Flow Controller Design for Air to Air Ducted Ramjet Rocket

Defence science journal

article

Srikant Srivastava¹  P.N. Dwivedi²  D.M. Vinod Kumar³ 

[1] DRDO-Defence Research and Development Laboratory;DRDO- Defence Research and Development Laboratory;National Institute of Technology

关键词: Ducted ramjet;    PN guidance;    2-loop fuel flow controller;    Gas generator;    Throttle valve;   

DOI  :  10.14429/dsj.71.15165

学科分类：社会科学、人文和艺术（综合）

来源: Defence Scientific Information & Documentation Centre

【 摘 要 】

Fuel Flow controller based ramjet propulsion system have a flexibility to change rocket velocity depending on guidance requirement by controlling the fuel flow rate as a function of atmospheric conditions like altitude, Mach no. and angle of attack. In this paper, Design objectives & requirements of fuel flow controller have been brought out from guidance loop for air-to-air target engagement. 2-loop non-linear dynamic inversion (DI) based controller design has been proposed to track the commanded thrust and to meet the time constant requirement as a function of altitude, Mach no. and angle of attack. The outer thrust loop is to control commanded thrust and to generate the demand for gas generator pressure loop and inner pressure loop is to meet outer loop demand by controlling throttle valve area. The engine state space plant model has been adapted with improvement of existing model. Throttle valve actuator specifications requirement are also brought out.

【 授权许可】

All Rights reserved