摘要
针对航空发动机这种复杂的被控对象, 设计了基于ε 滤波LMS算法的发动机自适应逆控制系统。该控制结构能利用非线性滤波器实现航空发动机建模和逆建模, 以滤波后的误差在线调整控制器权系数。进行了飞行包线内的数字仿真。结果表明: 这种方案结构不需要精确的发动机模型, 跟踪速度快, 具有较高的精度和较强的鲁棒性。
An adaptive inverse controller based on filtered-Ε least mean square (LMS) algorithm for the complex aeroengines is designed. The model and the inverse model of the aeroengine are designed by using nonlinear-filters. The weights of the controller are adjusted on-line until the system error trends to zero. Simulation of the speed control for aeroengine in full flight envelope is presented to verify the method. The control structure does not rely on the exact model. The control system has satisfactory tracing performance and good robustness.
出处
《推进技术》
EI
CAS
CSCD
北大核心
2005年第1期54-57,共4页
Journal of Propulsion Technology
关键词
航空发动机
自适应逆控制
LMS算法
ε-滤波
Adaptive control systems
Algorithms
Computer simulation
Control equipment
Control systems
Filters (for fluids)
Least squares approximations
Mathematical models
Speed control
