超超临界汽轮机灵活性运行策略研究与展望Operation Flexibility Strategy Research and Prospect for Ultra-supercritical Steam Turbine
秦攀,包劲松,张宝,应光耀,楼可炜
QIN Pan,BAO Jinsong,ZHANG Bao,YING Guangyao,LOU Kewei
摘要(Abstract):
随着新型清洁能源的推广应用和调峰竞价上网的发展趋势,开发汽轮机侧蓄能,提高机组灵活性运行成为火电机组发展的必由之路。以超超临界机组为例,分别介绍了主汽调阀节流、补汽阀调节、凝结水系统调节、高压加热器调节4种切实可行的灵活性运行策略,并结合具体试验数据,详细分析了各运行策略的应用特点,给机组灵活性运行提供了新的思路和方法,为应对机组灵活性运行提供了可以借鉴的改造之路。同时结合当下机组灵活性研究现状,展望了火电机组灵活性运行未来的发展方向,对旁路调节、减温水喷水调节、蓄能技术等策略进行了优劣和可行性分析。
With the development and application of new clean energy sources and the development trend of peak load regulation and price bidding, the development of energy storage at the turbine side and operation flexibility improvement of steam turbine units have become the only way for the development of thermal power units. Taking an ultra-supercritical unit as an example, the paper introduces four feasible and flexible operating strategies such as main steam control valve throttling, steam compensating valve regulation, condensate system adjustment, and high-pressure heater adjustment. Besides, the paper analyzes application characteristics of each operation strategy on the basis of test data to provide new ideas and methods for unit operation flexibility and a reference for the transformation of the unit operation flexibility. At the same time, the paper thinks over current research status of the unit flexibility and looks over the future direction of the development of the thermal power unit flexibility; moreover, the paper analyzes the advantages, disadvantages and feasibility of such strategies as bypass regulation, desuperheating water spray regulation and energy storage technology.
关键词(KeyWords):
灵活性运行;超超临界;快速调频;深度调峰
operation flexibility;ultra-supercritical;fast frequency modulation;deep peak load regulation
基金项目(Foundation):
作者(Author):
秦攀,包劲松,张宝,应光耀,楼可炜
QIN Pan,BAO Jinsong,ZHANG Bao,YING Guangyao,LOU Kewei
DOI: 10.19585/j.zjdl.201804014
参考文献(References):
- [1]董利斌,李泉,杨程,等.600 MW超临界机组干态深度调峰能力试验研究[J].浙江电力,2017,36(7):55-58.
- [2]刘吉臻,曾德良,田亮,等.新能源电力消纳与燃煤电厂弹性运行控制策略[J].中国电机工程学报,2015,35(21):5385-5392.
- [3]陈小强,项谨,魏路平,等.1 000 MW机组一次调频性能优化[J].中国电力,2010,43(4):63-66.
- [4]姚峻,祝建飞,金峰.1 000 MW机组节能型协调控制系统的设计与应用[J].中国电力,2010,43(6):79-84.
- [5]尹峰.CCS参与的火电机组一次调频能力试验研究[J].中国电力,2005(3):74-77.
- [6]张宝.浙江电网火电机组一次调频功能的应用[J].华东电力,2007,35(3):55-59.
- [7]王礼,刘国华,揭其良.超超临界燃煤机组AGC及一次调频优化[J].东北电力技术,2015(7):1-4.
- [8]姚峻,高磊,陈维和,等.900 MW超临界机组协调控制及AGC策略的研究及应用[J].中国电力,2005,38(8):62-65.
- [9]郑卫东,张育均,陈金丹,等.汽轮机蓄热响应AGC及一次调频技术在1 000 MW机组的应用[J].电站系统工程,2015,31(5):54-56.
- [10]刘吉臻,田亮,曾德良,等.660 MW机组负荷---压力非线性分析[J].动力工程,2005,25(4):533-540.
- [11]张宁.电站凝汽器静态和动态换热特性的研究[D].济南:山东大学,2007.
- [12]张宝,童小忠,罗志浩,等.凝结水节流调频负荷特性测试与评估[J].浙江电力,2013,32(2):48-51.
- [13]胡勇,刘洁臻,曾德良,等.1 000 MW火电机组凝结水节流系统动态模型研究[J].太原理工大学学报,2014,45(6):818-822.
- [14]王军民.600 MW超临界机组锅炉宽负荷脱硝技术的探索及实践[J].浙江电力,2017,36(7):24-28.
- [15]王建学,王锡凡,张显.电力市场中弹性运行备用研究[J].中国电机工程学报,2005,25(18):20-27.
- [16]张珍玲,蔡振坤.抽水蓄能电站在电网运行中的作用和经济价值[J].华电技术,2008,30(11):1-3.
- [17]年中华,刘吉臻,李凯阳,等.基于火电机组冷端系统的负荷快速响应研究[J].汽轮机技术,2013,55(2):131-134.