A Modified LPV Modeling Technique for Turbofan Engine Control System

摘要：

A modified LPV (Linear Parameter Varying) modeling technique for nonlinear system was put forward and is applied in a turbofan engine model and control analysis. First, a quasi-LPV model of a turbofan engine is designed at various engine operating points using linearized models and the scheduling variable is the fan speed. Then, according to the feedback method, the quasi-LPV model is modified by using an estimated fuel, which is calculated by using the scheduling variable and feedbacked, and a PI regulator. Last, the simulation results about a speedup process in opened-loop system and closed-loop control system of the turbofan engine show that the modified LPV model achieved much higher steady precision and fidelity than the quasi-LPV model.

关键词： turbofan engine Jacobian linearization linear parameter varying model feedback PID controller

作者: Li Shu-qing Zhang Sheng-xiu

作者单位: Xian Research Inst.Of High-Tech Hongqing Town, Xian, P.R.China, 710025

会议类型: 国际会议

会议名称: The 2010 International Conference on Computer Application and System Modeling(2010计算机应用与系统建模国际会议 ICCASM 2010)

会议地点: 太原

会议语种:英文

页码: 99-102

在线出版日期: 2010-10-22（万方平台首次上网日期，不代表论文的发表时间）