600MW超超临界机组再热蒸汽温度模型辨识

2015 International Conference on Industrial Informatics - Computing Technology, Intelligent Technology, Industrial Information Integration Pub Date : 2015-12-03 DOI:10.1109/ICIICII.2015.120

Shihe Chen, Z. Xi, WeiwuYan, Hu Yong

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引用次数: 1

摘要

超超临界机组在煤电工业中越来越受到重视。再热蒸汽减温系统对电站超超临界机组的经济性和安全性有着重要的影响。本文首先构建了超超临界机组多变量再热蒸汽减温系统，然后采用基于子空间模型辨识(SMI)的闭环辨识方法对再热蒸汽减温系统进行模型辨识。采用闭环SMI直接建立单位阶跃响应模型。根据工程人员的实践经验，该模型能较好地反映过热蒸汽系统的动态和稳态特性。

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Model Identification of Reheated Steam Temperature in 600MW Ultra-supercritical Unit

Ultra-Supercritical (USC) unit is more and more popular in coal-fired power industry. The reheated steam desuperheating system exerts great influence on the USC unit's economy and safety in power plant. In this paper, multi-variables reheated steam desuperheating system of USC unit is constructed and then closed-loop identification method based on Subspace model identification (SMI) is used for model identification of reheated steam desuperheating system. Closed-loop SMI is applied to build the unit step response model directly. From practical experience of engineers, the model can reflect the dynamic and steady characteristics of superheated steam system well.

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来源期刊

2015 International Conference on Industrial Informatics - Computing Technology, Intelligent Technology, Industrial Information Integration

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