[1]梁伟平,张金帅.直接空冷机组最佳经济背压优化[J].热力发电,2018,(10):96-102.[doi:10.19666/j.rlfd.201801016]
 LIANG Weiping,ZHANG Jinshuai.Optimization of the optimal economic back pressure for direct air-cooling units[J].Thermal Power Generation,2018,(10):96-102.[doi:10.19666/j.rlfd.201801016]
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直接空冷机组最佳经济背压优化()
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《热力发电》[ISSN:1000-9035/CN:22-1262/O4]

卷:
期数:
2018年10期
页码:
96-102
栏目:
发电技术论坛
出版日期:
2018-09-28

文章信息/Info

Title:
Optimization of the optimal economic back pressure for direct air-cooling units
作者:
梁伟平张金帅
华北电力大学自动化系,河北 保定 071003
Author(s):
LIANG Weiping ZHANG Jinshuai
Department of Automation, North China Electric Power University, Baoding 071003, China
关键词:
直接空冷变工况经济背压防冻保护专家系统顺序控制优化
分类号:
TM611.1
DOI:
10.19666/j.rlfd.201801016
文献标志码:
A
摘要:
针对直接空冷机组运行在非最佳经济背压下煤耗高、经济性下降等问题,通过热力学计算和机理分析,建立了机组出力增量与风机功率增量的数学模型,求取机组出力净增量极大值对应的最佳经济背压。通过变工况计算,建立不同工况段的经济背压表并拟合其函数关系式,根据拟合的机组出力、风机功率与背压的关系曲线,构建背压优化专家系统。同时,针对空冷岛冬季的防冻需求,设计了分段式防冻保护顺序控制逻辑。实际应用结果表明:采用本文提出的空冷岛优化系统后,供电煤耗降低约1.556 g/(kW·h),机组经济效益提高,防冻保护动作灵敏有效。

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(责任编辑 杜亚勤)

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备注/Memo

备注/Memo:
梁伟平(1962—),男,副教授,博士,主要研究方向为热工控制系统结构及参数优化,lwp-123a@vip.sina.com。
更新日期/Last Update: 2018-09-29