CAJ | 학술논문

针对高超声速飞行器存在的自身参数摄动及外界环境干扰导致的系统不确定性特点，提出了一种二阶滑模控制器设计方法。首先对高超声速飞行器模型进行精确反馈线性化处理，在得到的线性模型中加入外界干扰及自身参数摄动带来的不确定因素；然后设计了一种二阶滑模控制器；最后进行了仿真实验，并加入不确定因素以验证系统的跟踪性和鲁棒性。仿真结果表明了该种方法的有效性。
침대고초성속비행기존재적자신삼수섭동급외계배경간우도치적계통불학정성특점，제출료일충이계활모공제기설계방법。수선대고초성속비행기모형진행정학반궤선성화처리，재득도적선성모형중가입외계간우급자신삼수섭동대래적불학정인소；연후설계료일충이계활모공제기；최후진행료방진실험，병가입불학정인소이험증계통적근종성화로봉성。방진결과표명료해충방법적유효성。
The hypersonic vehicle is highly complex nonlinear system suffering from mismatched type of uncertainties caused by varying aerodynamic parameters and environmental disturbances,then a second order sliding mode controller is proposed. Firstly,the feedback linearization expression is disposed based on the hypersonic vehicle model,later the mismatched type of uncertainty caused by varying aerodynamic parameters and environmental disturbance is added into the model,then the second order sliding mode controller is designed. Finally,the simulation is conducted and the parameters uncertainties are added into the model so as to confirm the algorithm can track the command precisely with robustness. Simulation results confirm the effectiveness of the proposed second order sliding mode controller.