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Control Configured Combustors: A Systems Framework for Active Control of Combustion Dynamics

控制配置的燃烧器：燃烧动力学主动控制的系统框架

基本信息

批准号：
9713415
负责人：
Anuradha Annaswamy
金额：
$ 30万
依托单位：
Massachusetts Institute of Technology
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
1998
资助国家：
美国
起止时间：
1998-07-15 至 2002-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9713415&HistoricalAwards=false
关键词：
Control Configured Combustors Systems Framework

项目摘要

9713415AnnaswamyWe propose to study active control combustion dynamics, with particular emphasis on suppression of thermoacoustic instability. Our approach is to develop a systems framework which will include (a) models for the different components which contribute to the instability, e.g., the heat release dynamics, the acoustic dynamics, the actuator-sensor dynamics, (b) the effect of active feedback control on these components and their mutual interactions, and (c) self-tuning algorithms as part of the control design to allow changes in the operating conditions of the process. Each subcomponent model will be studied in increasing order of complexities which are compatible with practical systems, e.g., heat release dynamic models for bluff body-stabilized combustion, in vortical structures in shear layers, from fuel injectors used as actuators, etc. We will focus on showing, using a systems framework, how an overall controlled combustor model which is synthesized using these component models is capable of describing the subtle dynamic behavior observed in practical systems. Particular attention will be given to an understanding of model-based control strategies that are based on the predicted response of the combustion systems using these models and that account for effects not previously understood, such as coupling among acoustic modes and coupling among different controller components and the combustor. ***

9713415 Annaswamy我们建议研究主动控制燃烧动力学，特别强调抑制热声不稳定性。我们的方法是开发一个系统框架，其中包括（a）导致不稳定的不同组件的模型，例如，热释放动力学、声学动力学、致动器-传感器动力学，（B）主动反馈控制对这些部件及其相互作用的影响，以及（c）作为控制设计的一部分以允许过程的操作条件的改变的自调谐算法。每个子组件模型将按照与实际系统兼容的复杂性的递增顺序进行研究，例如，海崖体稳定燃烧的热释放动态模型，在剪切层的旋涡结构中，从用作致动器的燃料喷射器等，我们将集中展示，使用系统框架，如何使用这些组件模型合成的整体控制燃烧室模型能够描述在实际系统中观察到的微妙的动态行为。将特别关注基于模型的控制策略的理解，该控制策略基于使用这些模型的燃烧系统的预测响应，并考虑先前未理解的效应，例如声学模式之间的耦合以及不同控制器部件和燃烧器之间的耦合。 ***