Article(id=1221455970656502371, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1221455967863095805, articleNumber=null, orderNo=null, doi=10.19666/j.rlfd.202210223, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1664985600000, receivedDateStr=2022-10-06, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1769147396959, onlineDateStr=2026-01-23, pubDate=1677254400000, pubDateStr=2023-02-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769147396959, onlineIssueDateStr=2026-01-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769147396959, creator=13701087609, updateTime=1769147396959, updator=13701087609, issue=Issue{id=1221455967863095805, tenantId=1146029695717560320, journalId=1210938733613449225, year='2023', volume='52', issue='2', pageStart='1', pageEnd='161', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769147396292, creator=13701087609, updateTime=1769147501806, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1221456410462834874, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1221455967863095805, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1221456410462834875, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1221455967863095805, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=136, endPage=145, ext={EN=ArticleExt(id=1221455970929132152, articleId=1221455970656502371, tenantId=1146029695717560320, journalId=1210938733613449225, language=EN, title=Research and application of automatic control strategy for bypass heating of thermal power units under deep peak shaving and heating storage conditions, columnId=1221455970081882683, journalTitle=Thermal Power Generation, columnName=Application of thermal energy storage technology, runingTitle=null, highlight=null, articleAbstract=

Based on the control difficulties in the operation process of the unit after the bypass heating alteration, a complete control strategy was proposed under the bypass heating condition, which realizes the bypass automatic control under the heating condition and meets the needs of the unit heating regulation at the same time. Aiming at the influence of bypass switching on and off and working condition disturbance on the operation stability of steam turbine under the heating condition, as well as the change of unit safety boundary, a set of logic design scheme including bypass blocking and overriding was proposed, which effectively guarantees the unit's safety and stability. Aiming at the changing characteristics of the steam turbine flow characteristics and the boiler's response to temperature and pressure characteristics in the state of bypass heating, an optimization strategy for coordination correction was proposed, which improved the quality of network-related control of the unit. The control scheme proposed in this paper has been applied in the supercritical once-through furnace unit. It has been verified the control strategy can realize the automatic control of the bypass system, and the control effect of the coordinated variable load is good. After the bypass RB acts, the unit can transition smoothly, realizing the bypass supply Automatic and safe control of the unit under thermal conditions.

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针对旁路供热改造后机组运行过程中存在控制难点,提出旁路供热工况下完整控制策略,实现供热工况下的旁路自动控制,同时满足机组供热调节的需求。针对供热工况下对旁路的投退及工况扰动对汽轮机运行稳定性的影响,以及机组安全边界的改变,提出一套包含旁路闭锁及超驰的逻辑设计方案,有效保障机组的安全稳定运行。针对旁路供热状态下汽轮机通流特性、以及锅炉温度压力响应特性的变化特点,提出协调修正的优化策略,通过对原有逻辑的少量改动实现机组自动及协调控制效果的优化,提高机组的涉网控制品质。此外,针对旁路事故关闭的工况,提出旁路快速减负荷(run back, RB)的控制策略,使机组具备在旁路发生故障后的自稳定及自恢复能力。提出的控制方案在超临界直流炉机组中进行了应用,经验证能够实现旁路系统的自动化控制,协调变负荷的控制效果良好,旁路RB动作后机组能够平稳过渡,实现了旁路供热工况下机组的自动、安全控制。

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邢智炜(1988),男,高级工程师,主要研究方向为火电机组热工自动控制,

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邢智炜(1988),男,高级工程师,主要研究方向为火电机组热工自动控制,

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供热储能和深度调峰工况下火电机组旁路供热自动控制策略研究与应用
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邢智炜 1, 2 , 康静秋 1, 2 , 刘磊 1, 2 , 杨振勇 1, 2 , 尤默 1, 2
热力发电 | 热储能技术应用 2023,52(2): 136-145
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热力发电 | 热储能技术应用 2023, 52(2): 136-145
供热储能和深度调峰工况下火电机组旁路供热自动控制策略研究与应用
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邢智炜1, 2 , 康静秋1, 2, 刘磊1, 2, 杨振勇1, 2, 尤默1, 2
作者信息
  • 1.国网冀北电力有限公司电力科学研究院,北京 100045
  • 2.华北电力科学研究院有限责任公司,北京 100045
  • 邢智炜(1988),男,高级工程师,主要研究方向为火电机组热工自动控制,

Research and application of automatic control strategy for bypass heating of thermal power units under deep peak shaving and heating storage conditions
Zhiwei XING1, 2 , Jingqiu KANG1, 2, Lei LIU1, 2, Zhenyong YANG1, 2, Mo YOU1, 2
Affiliations
  • 1.State Grid Jibei Electric Power Research Institute, Beijing 100045, China
  • 2.North China Electric Power Research Institute Co., Ltd., Beijing 100045, China
出版时间: 2023-02-25 doi: 10.19666/j.rlfd.202210223
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针对旁路供热改造后机组运行过程中存在控制难点,提出旁路供热工况下完整控制策略,实现供热工况下的旁路自动控制,同时满足机组供热调节的需求。针对供热工况下对旁路的投退及工况扰动对汽轮机运行稳定性的影响,以及机组安全边界的改变,提出一套包含旁路闭锁及超驰的逻辑设计方案,有效保障机组的安全稳定运行。针对旁路供热状态下汽轮机通流特性、以及锅炉温度压力响应特性的变化特点,提出协调修正的优化策略,通过对原有逻辑的少量改动实现机组自动及协调控制效果的优化,提高机组的涉网控制品质。此外,针对旁路事故关闭的工况,提出旁路快速减负荷(run back, RB)的控制策略,使机组具备在旁路发生故障后的自稳定及自恢复能力。提出的控制方案在超临界直流炉机组中进行了应用,经验证能够实现旁路系统的自动化控制,协调变负荷的控制效果良好,旁路RB动作后机组能够平稳过渡,实现了旁路供热工况下机组的自动、安全控制。

深度调峰  /  旁路供热  /  自动控制策略  /  快速减负荷

Based on the control difficulties in the operation process of the unit after the bypass heating alteration, a complete control strategy was proposed under the bypass heating condition, which realizes the bypass automatic control under the heating condition and meets the needs of the unit heating regulation at the same time. Aiming at the influence of bypass switching on and off and working condition disturbance on the operation stability of steam turbine under the heating condition, as well as the change of unit safety boundary, a set of logic design scheme including bypass blocking and overriding was proposed, which effectively guarantees the unit's safety and stability. Aiming at the changing characteristics of the steam turbine flow characteristics and the boiler's response to temperature and pressure characteristics in the state of bypass heating, an optimization strategy for coordination correction was proposed, which improved the quality of network-related control of the unit. The control scheme proposed in this paper has been applied in the supercritical once-through furnace unit. It has been verified the control strategy can realize the automatic control of the bypass system, and the control effect of the coordinated variable load is good. After the bypass RB acts, the unit can transition smoothly, realizing the bypass supply Automatic and safe control of the unit under thermal conditions.

deep peak shaving  /  bypass heating  /  automatic control strategy  /  run back
邢智炜, 康静秋, 刘磊, 杨振勇, 尤默. 供热储能和深度调峰工况下火电机组旁路供热自动控制策略研究与应用. 热力发电, 2023 , 52 (2) : 136 -145 . DOI: 10.19666/j.rlfd.202210223
Zhiwei XING, Jingqiu KANG, Lei LIU, Zhenyong YANG, Mo YOU. Research and application of automatic control strategy for bypass heating of thermal power units under deep peak shaving and heating storage conditions[J]. Thermal Power Generation, 2023 , 52 (2) : 136 -145 . DOI: 10.19666/j.rlfd.202210223
  • 国网冀北电力有限公司科技项目:大规模火电机组灵活性改造和供热背景下调节支撑能力分析及提升研究(52018K22001F)
2023年第52卷第2期
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文章信息
doi: 10.19666/j.rlfd.202210223
  • 接收时间:2022-10-06
  • 首发时间:2026-01-23
  • 出版时间:2023-02-25
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  • 收稿日期:2022-10-06
基金
Science and Technology Project of State Grid Jibei Electric Power Co., Ltd.(52018K22001F)
国网冀北电力有限公司科技项目:大规模火电机组灵活性改造和供热背景下调节支撑能力分析及提升研究(52018K22001F)
作者信息
    1.国网冀北电力有限公司电力科学研究院,北京 100045
    2.华北电力科学研究院有限责任公司,北京 100045
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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