王一丰,翟春华,黄庆,肖俊峰,牛晨晖,苏新民,焦道顺,潘赫男,王乾远,奚新国,袁源,阴海强,苏通,曹殿尧,刘加湗,章文茜,李军

• 1:西安热工研究院有限公司
• 2:西安交通大学能源与动力工程学院
• 3:华能南京燃机发电有限公司
• 4:华能国际电力江苏能源开发有限公司

摘要(Abstract)：

针对燃气轮机联合循环机组三压再热余热锅炉的动态运行特性，使用Modelica开源编程语言搭建了余热锅炉仿真模型，并与电厂实际调峰过程运行数据及Thermoflow商业软件仿真结果进行对比和验证。在实际运行工况下，从满负荷降至低负荷后稳态运行、再从低负荷升至满负荷、机组停机和边界参数扰动的动态过程中，所建模型均能较为准确地预测余热锅炉主要参数的动态响应规律。随着机组负荷从320 MW降低至280 MW，汽轮机功率从124.0 MW降至111.5 MW；高压主蒸汽流量从70.12 kg/s减至63.62 kg/s；高压主蒸汽压力从8 250 k Pa降至7 612 k Pa；余热锅炉入口烟气参数在约300 s的时间内随机组负荷变化，但是余热锅炉蒸汽参数需要约600s完成动态响应达到低负荷下的稳态，说明余热锅炉蒸汽参数相对于燃气轮机排烟参数随时间变化有一定滞后。在机组停机的动态过程中，汽轮机功率从130.4MW下降到5.4MW，余热锅炉高压主蒸汽温度从600.1℃降低到224.5℃，高压主蒸汽流量从76.1 kg/s减小到15.3 kg/s。

关键词(KeyWords)： 联合循环发电厂;余热锅炉;调峰;变负荷;动态建模

Abstract:

Keywords:

基金项目(Foundation): 中国华能集团有限公司总部科技项目（HNKJ20-H42）~~

作者(Author): 王一丰,翟春华,黄庆,肖俊峰,牛晨晖,苏新民,焦道顺,潘赫男,王乾远,奚新国,袁源,阴海强,苏通,曹殿尧,刘加湗,章文茜,李军

DOI: 10.19666/j.rlfd.202407179

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