Compressor Distributed Dynamic Model and Simulation under Non-Constant Speed

被引：0
|
作者：
Chen Y.-X. [1 ]
Su S.-M. [1 ]
机构：
[1] School of Power and Energy, Northwestern Polytechnical University, Xi'an
来源：
Tuijin Jishu/Journal of Propulsion Technology | 2020年 / 41卷 / 03期
关键词：
Active stability control; Compressor; Distributed dynamic model; Instability; Stall;
D O I：
10.13675/j.cnki.tjjs.190050
中图分类号：
学科分类号：
摘要：
For present compressor model which is applied for active stability control is not capable of simulating at non-constant speed and capturing compressor stall signal development process at discrete positions in the circumferential direction of the compressor, based on the one-dimensional compressor dynamic model, the distributed compressor system model under non-constant speed with air injector was established. Air injector model was conducted to serve as the actuator. Then by Fourier series solutions, multi-dimensional state variables were used for describing compressor dynamic process. Simulation results show that the model can analyze compressor unstable dynamic under non-constant speed and constant speed. Moreover, using this model in compressor active stability control, it can reduce the stall mode amplitude from 0.28 to 1×10-5, effectively suppress the occurrence of compressor stall, and enhance the applicability of the model. © 2020, Editorial Department of Journal of Propulsion Technology. All right reserved.
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页码：675 / 684
页数：9
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