李俊,李蔚,毛静宇,李龙,陈立明,杨典兵,于晓刚
LI Jun,LI Wei,MAO Jingyu,LI Long,CHEN Liming,YANG Dianbing,YU Xiaogang

• 1:杭州意能电力技术有限公司
• 2:浙江大学能源工程学院

摘要(Abstract)：

为了在线监测调峰运行机组的通流性能状态，选取3种不同参数等级（亚临界、超临界、超超临界）的燃煤火电机组建立Ebsilon仿真模型，研究各个工况下机组各个级段的特征通流面积变化规律，分析特征通流面积的偏差范围及偏差影响因素，并结合性能试验数据提出一种机组性能诊断流程，在某电厂投入实际应用。计算结果表明：机组中间各个级段的特征通流面积基本保持不变，机组供热抽汽不会对相邻级段的特征通流面积产生影响。可见，应用Ebsilon软件进行机组仿真和计算得到的特征通流面积参数可作为机组性能评价的一项重要指标，通过建立机组性能数据档案，有助于实现机组进一步的性能分析、运行监测和故障诊断。
To monitor the flow performance of peak-shaving units online, simulation models for coal-fired generator units with three different parameter levels(subcritical, supercritical, and ultra-supercritical) were developed using EBSILON. The variations in characteristic flow areas of each stage of the units under different operating conditions were studied, and the deviation range and influencing factors of these flow areas were analyzed. Based on performance test data, a unit performance diagnostic process was proposed and implemented in a power plant. The calculation results show that the characteristic flow areas of the middle stages of the units remain largely unchanged, and the heating steam extraction does not affect the characteristic flow areas of adjacent stages. Therefore, the characteristic flow area parameters obtained through EBSILON simulation and calculation can serve as a crucial indicator for evaluating unit performance. By establishing a performance data archive for the units, further performance analysis, operational monitoring, and fault diagnosis can be facilitated.

关键词(KeyWords)： 火电机组;特征通流面积;仿真建模
thermal power unit;characteristic flow area;simulation and modeling

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划（2019YFE0126000）

作者(Author): 李俊,李蔚,毛静宇,李龙,陈立明,杨典兵,于晓刚
LI Jun,LI Wei,MAO Jingyu,LI Long,CHEN Liming,YANG Dianbing,YU Xiaogang

DOI: 10.19585/j.zjdl.202506012

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