航空发动机ZP/LTR方法稳定性分析及改进

杨刚; 姚华

航空发动机ZP/LTR方法稳定性分析及改进

杨刚,
姚华

中国航空动力控制系统研究所, 无锡 214063

基金项目: 航空科学基金(05C14001)

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出版历程
- 收稿日期: 2006-06-17
- 修回日期: 2006-09-25
- 刊出日期: 2007-06-28

Stability analysis and improvement of ZP/LTR method of aeroengine

YANG Gang,
YAO Hua

Aviation Motor Control System Institute, Wuxi 214063, China

摘要

摘要: 分析了零点配置/回路传函恢复(ZP/LTR)方法稳定性, 给出并证明了其稳定性条件.但该条件较为苛刻, 限制了ZP/LTR方法的应用.为了对ZP/LTR方法改进, 在设计过程中引入了Kal man滤波器, 通过选取特殊的参数, 使Kal man滤波器回路逼近并取代原目标回路, 从而在保留ZP/LTR方法性能的同时, 通过保证Kal man滤波器回路的稳定性保证了最后闭环系统的稳定性.给出并证明了改进后的ZP/LTR方法的稳定性条件, 指出改进后的ZP/LTR方法的稳定性条件较为宽松, 拓宽了原ZP/LTR方法的应用范围.
- 航空、航天推进系统 /
- 航空发动机控制 /
- 零点配置/回路传函恢复(ZP/LTR) /
- 线性二次型高斯/回路传函恢复(LQG/LTR) /
- Kalman滤波器 /
- 稳定性
Abstract: Zero placement/loop transfer recovery(ZP/LTR) method was analyzed theoretically to find and demonstrate the conditions of stability.However,these strict conditions have placed constraint on the application of ZP/LTR method.Kalman filter was thus introduced for the purpose of improvement of ZP/LTR method.With some special parameters selected,Kalman filter loop could approximate and replace original target feedback loop(TFL).While the performance of ZP/LTR method is maintained,the stability of final closed-loop system could be guaranteed along with the stability of Kalman filter loop.The stability conditions of improved ZP/LTR method was presented and demonstrated,showing that the stability conditions of improved ZP/LTR method were less strict,thus expanding the scope of applications for original ZP/LTR method.
- aerospace propulsion system /
- aeroengine control /
- zero placement/loop transfer recovery(ZP/LTR) /
- linear quadratic Gaussian with loop transfer recovery(LQG/LTR) /
- Kalman filter /
- stability

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参考文献(6)

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