不确定性系统鲁棒H∞/H2混合控制在航空发动机中的应用
Robust H∞/H2 Mixed Control for Aeroengine Parameter Uncertainty Systems
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摘要: 将结构参数不确定性问题引入到参数化的一般 H∞ 控制器中,并考虑 H2 性能指标,提出了 1种被控系统中存在结构参数不确定性的混合 H∞ /H2 控制器的设计方法,给出了相应问题求解的充分必要条件,问题的解归结为求解 3个 Riccati方程。设计的控制器在某型双转子涡喷发动机气动热力学非线性模型上进行了仿真验证Abstract: Based on introducing structured parameter uncertainty problems into general H ∞ controller involving free parameters and taking into consideration of H 2 cost performance,a design method of mixed H ∞/H 2 controller with structured parameter uncertainty in the plant is presented.Necessary and sufficient conditions for solving corresponding problems are derived.It is shown that the solution to this problem involves solving three algebraic Riccati equations.Simulations on nonlinear model of twin spool turbojet engine aerothermodynamics are performed to verify the results.
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Key words:
- structured parameters /
- uncertainty /
- robust control /
- aeroengine
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