基于加热器切除的深度调频控制技术研究与实施

doi:10.11930/j.issn.1004-9649.202009007

中国电力 ›› 2021, Vol. 54 ›› Issue (3): 168-176.DOI: 10.11930/j.issn.1004-9649.202009007

基于加热器切除的深度调频控制技术研究与实施

陈欢乐¹, 归一数¹, 陈伟², 王阳¹, 卢宏林², 明磊²

1. 上海明华电力科技有限公司，上海 200090;
2. 淮沪电力有限公司田集第二发电厂，安徽淮南 232200

收稿日期:2020-09-03 修回日期:2020-11-24 出版日期:2021-03-05 发布日期:2021-03-17
作者简介:陈欢乐(1988-)，男，硕士，工程师，从事热工自动化研究，E-mail：chenhl@mhdlshanghaipower.com
基金资助:
国家电力投资集团有限公司科技项目（基于高、低加切除的火电机组电网低频事故调频技术研究和实施，SH201722）

Research and Implementation of In-Depth Frequency Regulation Technology with Heater Removal

CHEN Huanle¹, GUI Yishu¹, CHEN Wei², WANG Yang¹, LU Honglin², MING Lei²

1. Shanghai Minghua Electric Power Science & Technology Co., Ltd., Shanghai 200090, China;
2. Tianji No.2 Power Plant, Huaihu Coal & Power Co., Ltd., Huainan 232200, China

Received:2020-09-03 Revised:2020-11-24 Online:2021-03-05 Published:2021-03-17
Supported by:
This work is supported by the State Power Investment Corporation Limited (Research and Implementation of Low Frequency Failure Regulation Technology with Heater Removal for Thermal Power Units, No.SH201722)

摘要/Abstract

摘要： 针对超超临界机组锅炉蓄热能力有限、在电网低频事故等深度调频工况下一次调频性能较差的问题，提出了基于加热器切除，充分利用回热系统蓄能参与电网调频的深度调频控制技术。通过在典型660 MW超超临界机组上开展现场试验研究，获得不同加热器切除的响应特性和对机组安全稳定运行影响，据此设计基于加热器切除的深度调频控制策略，并加以实施和试验验证。试验结果表明，该控制技术在确保机组安全稳定运行前提下，能够有效提升机组的深度调频响应性能，可作为电网大频差工况下火电机组一次调频性能提升的新策略。

关键词: 燃煤发电机组, 大频差, 深度调频, 加热器切除, 控制, 安全

Abstract: Poor frequency regulation performance has been linked to the limited heat storage capacity of ultra-supercritical boilers under in-depth frequency regulation working conditions in the event of low frequency failure of power grid. To address this issue, the authors proposed an in-depth frequency regulation technology in which the heat storage of regenerative system based on heater removals are fully utilized to participate in grid frequency control. In addition, the field testing was carried out on a typical 660 MW ultra-supercritical unit and the responding characteristics with respect to different heater removals as well as their impacts on the safe and stable operation of the unit were obtained. Accordingly, this paper designed the heater-removal-based frequency modulation strategies and then conducted tests for verification. The test results show that under the premise of ensuring the safe and stable operation of the unit, the proposed technology can effectively improve the unit performance of response to frequency modulation. Therefore, it can be implemented as a new manner to enhance the primary frequency regulation capability of thermal power units operated under large frequency difference conditions in the power grid.

Key words: coal-fired power generating unit, large frequency difference, deep frequency regulation, heater removal, control, safety

陈欢乐, 归一数, 陈伟, 王阳, 卢宏林, 明磊. 基于加热器切除的深度调频控制技术研究与实施[J]. 中国电力, 2021, 54(3): 168-176.

CHEN Huanle, GUI Yishu, CHEN Wei, WANG Yang, LU Honglin, MING Lei. Research and Implementation of In-Depth Frequency Regulation Technology with Heater Removal[J]. Electric Power, 2021, 54(3): 168-176.

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https://www.electricpower.com.cn/CN/Y2021/V54/I3/168

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基于加热器切除的深度调频控制技术研究与实施

Research and Implementation of In-Depth Frequency Regulation Technology with Heater Removal

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基于加热器切除的深度调频控制技术研究与实施

Research and Implementation of In-Depth Frequency Regulation Technology with Heater Removal

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