涡扇发动机分路式多变量PI解耦控制

A decentralized multivariable PI controller for turbofan engine

School of Power and Energy, Northwestern Polytechnical University, Xi′an 710072, China

摘要: 根据基于模型的智能数字发动机控制的特点,针对某型涡扇发动机,以直接推力控制模式为例,研究了涡扇发动机分路式多变量PI解耦控制.并采用了零点配置技术保证解耦控制器的稳定性,通过稳态解耦矩阵对涡扇发动机进行解耦达到分路控制的目的.利用SISO系统PI控制器设计方法确定每个环路的最优PI控制器.仿真结果表明,该算法具有较好的动态和静态解耦性能.
- 航空、航天推进系统 /
- 涡扇发动机 /
- 多变量控制 /
- PI控制 /
- 解耦
Abstract: Based on the characteristic of model-based intelligent digital engine control,a decentralized multivariable PIcontrol design method for turbofan engine is presented for a given turbofan engine with the direct thrust control mode as an example.The stability of decoupling controller was ensured by employment of the zero assignment method and decentralized control was obtained by using the stability decoupling matrix.Then the PItuning method of SISOwas used to obtain the optimal PIcontroller for each loop.The method was applied to a certain turbofan engine,and the efficiency of dynamic and static decoupling performance of this method is verified by simulation results.
- aerospace propulsion system /
- turbofan engine /
- multivariable control /
- PI controller /
- decoupling

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