Design of active control system for combustion instability using H2 algorithm
Design of active control system for combustion instability using H2 algorithm
复制标题
基于H2算法的燃烧不稳定主动控制系统设计
DOI：
10.1504/ijvd.2007.012310
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发表时间：
2007
影响因子：
0.5
通讯作者：
A. Hayashi
中科院分区：
文献类型：
--
作者：
Hiroyuki Sato;C. Nishidome;I. Kajiwara;A. Hayashi
为了控制旋流燃烧室火焰稳定性和降低燃烧噪声，研究了旋流燃烧室振荡火焰主动控制系统。采用基于实验模态分析的现代H2控制算法进行系统辨识，建立了闭环反馈控制系统。为了研究放热波动，进行了平面激光诱导荧光测量。火焰保持器区域附近的OH自由基分布是可视化的。在这项调查中观察到两种类型的振荡火焰：一种是由低频模式的特点;其他的，与高频模式，产生了显着的频率，其特征在于由谐振的燃烧器。对于闭环反馈控制系统，扬声器和麦克风被用作致动器和传感器。结果发现，所开发的控制系统表现良好的结果，15-dB的减少。
An active control system of oscillatory flame in a swirler combustor was investigated to control flame stability and to reduce the combustion noise. A modern H2 control algorithm based on experimental modal analysis for system identification was applied to develop a closed-loop feedback control system. To examine the exothermic fluctuation, planar laser-induced fluorescence measurements were carried out. The OH radical distribution near the region of the flame holder was visualised. Two types of oscillatory flame were observed in this investigation: one was characterised by low-frequency mode; the other, with high-frequency mode, was produced with a remarkable frequency characterised by resonance of the combustor. As for the closed-loop feedback control system, a loudspeaker and microphone were used as an actuator and a sensor. It was found that the developed control system performed well with the result of 15-dB reduction.