摘要
针对航空发动机非线性系统的镇定控制问题,提出基于精确线性化和滑模变结构方法的航空发动机非线性控制器设计方法。利用精确线性化方法适用于大偏差范围的优势,将航空发动机非线性系统精确线性化,作为非线性控制器设计的基础。结合变结构控制鲁棒性强、可靠性高的优点,设计了航空发动机非线性变结构控制器。对某型航空发动机的干扰非线性系统模型在大偏差范围内进行仿真验证,结果表明,所设计的控制器鲁棒性好、系统响应快、抗干扰能力强,验证了本文方法的可行性和有效性。
Aimed at the stabilization control problem of aeroengine nonlinear system, an design methodology for aeroengine nonlinear controller based on exact linearization and variable structure approach is proposed. The aeroengine nonlinear system is linearized by the exact linearization approch, which is appropriate for large deviation and establishes the foundation for the nonlinear controller. An aeroengine nonlinear controller is designed by the variable structure approach, which has an advantage of strong robustness and high reliability. To verify the feasibility and effectiveness of the proposed methodology, a simulation on a nonlinear system model with interference for some aeroengine is done in big deviation, and the result shows that, the designed controller has good robustness, fast system response and strong anti-interference ability.
出处
《变频器世界》
2015年第9期77-82,共6页
The World of Inverters
关键词
航空发动机
非线性控制
精确线性化
变结构控制
滑动模态
Aeroengine
Exact linearization
Variable structure control
Nonlinear control
Sliding model
