一次调频参数对超超临界二次再热机组性能的影响

doi:10.11930/j.issn.1004-9649.201903097

中国电力 ›› 2019, Vol. 52 ›› Issue (5): 54-62.DOI: 10.11930/j.issn.1004-9649.201903097

• 智能发电关键技术专栏 • 上一篇下一篇

一次调频参数对超超临界二次再热机组性能的影响

王珠¹, 韩翔², 许立环², 赵永亮¹, 种道彤¹

1. 西安交通大学动力工程多相流国家重点实验室, 陕西西安 710049;
2. 国家能源集团宿迁发电有限公司, 江苏宿迁 223800

收稿日期:2019-03-26 修回日期:2019-04-17 出版日期:2019-05-05 发布日期:2019-05-14
作者简介:王珠(1995-),女,博士研究生,从事超超临界二次再热机组高效灵活协同机理与优化研究,E-mail:wangzhu9042@stu.xjtu.edu.cn;韩翔(1975-),男,硕士,高级工程师,从事热工自动化及工程管理研究,E-mail:34891290@qq.com;许立环(1978-),男,学士,工程师,从事热工专业技术管理及火电厂设备管理研究,E-mail:619282144@qq.com
基金资助:
国家重点研发计划资助项目（2017YFB0602101）。

Influence of Primary Frequency Regulation Parameters on Performance of a Ultra-supercritical Double Reheat Unit

WANG Zhu¹, HAN Xiang², XU Lihuan², ZHAO Yongliang¹, CHONG Daotong¹

1. State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China;
2. National Energy Group Suqian Power Generation Co., Ltd., Suqian 223800, China

Received:2019-03-26 Revised:2019-04-17 Online:2019-05-05 Published:2019-05-14
Supported by:
This work is supported by National Key Research and Development Program of China (No.2017YFB0602101).

摘要/Abstract

摘要： 二次再热机组流程复杂，惯性较大，其一次调频特性对电厂的运行稳定性、灵活性影响较大。以GSE仿真平台为基础，采用JTopmeret模块和自定义程序相结合的形式，建立了超超临界二次再热汽轮机的仿真模型与一次调频模型，并对此模型进行了精度校验。在此基础上，研究了二次再热机组参与一次调频过程中的热力参数响应特性，分析了负荷阶跃幅度、调速不等率对二次再热机组一次调频特性的影响。结果表明：当机组的负载功率增加时，二次再热机组一次调频控制系统开始动作，在动态调节过程中，实时频率小于50Hz，在达到稳态后，一、二次再热蒸汽的流量、压力变化相对值大于主蒸汽流量、压力变化相对值。在二次再热机组一次调频过程中，频率的动态超调量随负荷阶跃幅度的增大而增大，随调速不等率减小而增大。频率的调节时间随着负荷阶跃幅度的增大或调速不等率的下降而延长。与一次再热机组相比，二次再热机组一次调频控制系统动作较快，但调节过程中最大超调量较大。

关键词: 燃煤电厂, 二次再热, 一次调频, 灵活性, 调速不等率, 动态特性

Abstract: Primary frequency regulation characteristics of double reheat unit have significant impacts on the operation stability and flexibility of power system due to its complicated flow process and large inertia. Based on the GSE simulation platform, the dynamic simulation models of the ultra-supercritical double reheat generation unit and primary frequency regulation were developed and validated by virtue of the combination of JTopmeret module and self-defined program. Then, the response characteristics of the thermal parameters in the double reheat unit during the primary frequency regulation process were studied. The effects of the load step amplitude and the speed droop on the primary frequency regulation characteristics were analyzed. It is discovered from the results that in the primary frequency regulation process of the double reheat unit, with step increase of the load power the real-time frequency will drop rapidly and DEH turbine control system will immediately take measures during dynamic processes, the real time frequency is less 50 Hz. Once the system reaches steady state, the relative change of flow volume and pressure of the primary and secondary reheat steam will be greater than those of the main steam. During the primary frequency regulation of the double reheat units, the increase of load step amplitude or the reduction of the speed droop, will both boost the dynamic overshoot of the frequency, and prolong the time duration for frequency regulation. Compared with single reheat generation units, the primary frequency control systems of double reheat units demonstrate faster response, whereas their maximum overshoot is larger during the regulation process.

Key words: coal-fired power plant, double reheat, primary frequency regulation, operational flexibility, speed droop, dynamic characteristics

中图分类号:

王珠, 韩翔, 许立环, 赵永亮, 种道彤. 一次调频参数对超超临界二次再热机组性能的影响[J]. 中国电力, 2019, 52(5): 54-62.

WANG Zhu, HAN Xiang, XU Lihuan, ZHAO Yongliang, CHONG Daotong. Influence of Primary Frequency Regulation Parameters on Performance of a Ultra-supercritical Double Reheat Unit[J]. Electric Power, 2019, 52(5): 54-62.

导出引用管理器 EndNote|Ris|BibTeX

链接本文: https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.201903097

https://www.electricpower.com.cn/CN/Y2019/V52/I5/54

参考文献 21

[1]	CHANG S Y, ZHOU J K, MENG S, et al. Clean coal technologies in China:Current status and future perspectives[J]. Engineering, 2016, 2(4):447-459.
[2]	FRANCO A, DIAZ A R. The future challenges for "clean coal technologies":Joining efficiency increase and pollutant emission control[J]. Energy, 2009, 34(3):348-354.
[3]	ZHOU L Y, XU G, ZHAO S F, et al. Parametric analysis and process optimization of steam cycle in double reheat ultra-supercritical power plants[J]. Applied Thermal Engineering, 2016, 99:652-660.
[4]	王月明, 牟春华, 姚明宇, 等. 二次再热技术发展与应用现状[J]. 热力发电, 2017, 46(8):1-10, 15 WANG Yueming, MU Chunhua, YAO Mingyu, et al. Review of the development and application of double-reheat power generation technology[J]. Thermal power generation, 2017, 46(8):1-10, 15
[5]	OLAUSON J, AYOB M N, BWEGKVIST M, et al. Net load variability in Nordic countries with a highly or fully renewable power system[J]. Nature Energy, 2016, 1(12):16175.
[6]	LU X, MCELROY M B, PENG W, et al. Challenges faced by China compared with the US in developing wind power[J]. Nature Energy, 2016, 1(6):16061.
[7]	舒印彪, 张智刚, 郭剑波, 等. 新能源消纳关键因素分析及解决措施研究[J]. 中国电机工程学报, 2017, 37(1):1-8 SHU Yinbiao, ZHANG Zhigang, GUO Jianbo, et al. Study on key factors and solution of renewable energy accommodation[J]. Proceedings of the CSEE, 2017, 37(1):1-8
[8]	ALIZADEH M I, MOGHADDAM M P, AMJADY N, et al. Flexibility in future power systems with high renewable penetration:A review[J]. Renewable and Sustainable Energy Reviews, 2016, 57:1186-1193.
[9]	黄卫剑, 张曦, 陈世和, 等. 提高火电机组一次调频响应速度[J]. 中国电力, 2011, 44(1):73-77 HUANG Weijian, ZHANG Xi, CHEN Shihe, et al. Enhancing response speed of primary frequency regulation in thermal power unit[J]. Electric Power, 2011, 44(1):73-77
[10]	ZHAO Y L, LIU M, WANG C Y, et al. Increasing operational flexibility of supercritical coal-fired power plants by regulating thermal system configuration during transient processes[J]. Applied Energy, 2018, 228:2375-2386.
[11]	ZHAO Y L, WANG C Y, LIU M, et al. Improving operational flexibility by regulating extraction steam of high-pressure heaters on a 660 MW supercritical coal-fired power plant:A dynamic simulation[J]. Applied Energy, 2018, 212:1295-1309.
[12]	HU Y, ZENG D L, LIU J Z, et al. Dynamic model for controller design of condensate throttling systems[J]. ISA Transactions, 2015, 58:622-628.
[13]	LONG D T, WAND W, YAO C, et al. An experiment-based model of condensate throttling and its utilization in load control of 1000 MW power units[J]. Energy, 2017, 133:941-954.
[14]	WANG W, LIU J Z, ZENG D L, et al. Modeling for condensate throttling and its application on the flexible load control of power plants[J]. Applied Thermal Engineering, 2016, 95:303-310.
[15]	WANG W, LI L, LONG D T, et al. Improved boiler-turbine coordinated control of 1000 MW power units by introducing condensate throttling[J]. Journal of Process Control, 2017, 50:11-18.
[16]	冀川, 许海雷, 李勇. 提高二次再热机组一次调频响应的策略[J]. 电力科技与环保, 2018, 34(6):37-39 JI Chuan, XV Hailei, LI Yong. Method for improving primary frequency response of double reheat steam turbine[J]. Electric Power Technology and Environmental Protection, 2018, 34(6):37-39
[17]	李勇, 许海雷. 凝结水节流参与的1000 MW二次再热机组一次调频控制方法[J]. 电力科技与环保, 2018, 34(6):34-36 LI Yong, XU Hailei. Condensate throttling frequency control method for 1000 MW double reheat units[J]. Electric Power Technology and Environmental Protection, 2018, 34(6):34-36
[18]	WU C, GAO L, XIA J, et al. Analysis of effects on primary frequency control and power grid stability of different control logic[C]//ICIEA 2010:Proceedings of the 5th IEEE conference on industrial electronics and applications,Taichuan, 2010.
[19]	WANG C Y, LIU M, ZHAO Y L, et al. Dynamic modeling and operation optimization for the cold end system of thermal power plants during transient processes[J]. Energy, 2018, 145:734-746.
[20]	吴雪莲, 李兆伟, 蒋望, 等. 并网发电机组的一次调频性能评价方法综述[J]. 电子设计工程, 2018, 26(19):171-177 WU Xuelian, LI Zhaowei, JIANG Wang, et al. A review on the evaluation methods of primary frequency modulation performance of grid-connected generator[J]. Electronic Design Engineering, 2018, 26(19):171-177
[21]	王永庆, 赵嘉, 曹越, 等. 超临界机组及其一次调频控制系统的辨识与仿真[J]. 热能动力工程, 2018, 33(2):111-116 WANG Yongqing, ZHAO Jia, CAO Yue, et al. Identification and simulation of a supercritical unit and its primary frequency modulation and control system[J]. Journal of Engineering for Thermal Energy and Power, 2018, 33(2):111-116

一次调频参数对超超临界二次再热机组性能的影响

Influence of Primary Frequency Regulation Parameters on Performance of a Ultra-supercritical Double Reheat Unit

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献 21

相关文章 15

编辑推荐

Metrics

[1]	张玉敏, 尹延宾, 吉兴全, 叶平峰, 孙东磊, 宋爱全. 计及热网不同运行状态下灵活性供给能力的综合能源系统优化调度[J]. 中国电力, 2025, 58(2): 88-102.
[2]	孙东磊, 王宪, 孙毅, 孟祥飞, 张涌琛, 张玉敏. 基于多面体不确定集合的电力系统灵活性量化评估方法[J]. 中国电力, 2024, 57(9): 146-155.
[3]	田刚领, 武鸿鑫, 李娟, 张柳丽, 谢佳, 李爱魁. 风电场多功能储能电站功率分配策略[J]. 中国电力, 2024, 57(9): 247-256.
[4]	刘志强, 李建锋, 潘荔, 王志轩. 中国煤电机组改造升级效果分析与展望[J]. 中国电力, 2024, 57(7): 1-11.
[5]	王雪, 刘林, 刘文迪, 翟延鹏, 杨苓, 许方园, 高岩, 张纪欣. 基于纵横交叉算法的新型电力系统惯量延迟优化控制策略[J]. 中国电力, 2024, 57(7): 12-20.
[6]	李鲁阳, 陈龙翔, 陈磊, 孙大卫, 吴林林, 闵勇. 用于新能源一次调频的储能经济配置研究[J]. 中国电力, 2024, 57(7): 54-65.
[7]	徐峰亮, 王克谦, 王文豪, 王鹏, 王焕昌, 张帅, 赵凤展. 计及运行灵活性的中压配电系统源-网-储协同扩展规划[J]. 中国电力, 2024, 57(7): 98-108.
[8]	胡福年, 张彭成, 周小博, 陈军. 计及灵活性资源的综合能源系统源荷协调优化调度[J]. 中国电力, 2024, 57(5): 2-13.
[9]	张永, 尹朝强, 刘宇钢, 张斌, 莫春鸿, 王朝阳. 风煤比对超超临界机组变负荷瞬态特性的影响[J]. 中国电力, 2024, 57(3): 224-232.
[10]	仪忠凯, 侯朗博, 徐英, 吴永峰, 李志民, 吴俊飞, 冯腾, 韩柳. 市场环境下灵活性资源虚拟电厂聚合调控关键技术综述[J]. 中国电力, 2024, 57(12): 82-96.
[11]	许竞, 赵铁军, 高小刚, 叶鞠, 孙玲玲. 高比例新能源电力系统调节资源灵活性不足风险分析[J]. 中国电力, 2024, 57(11): 129-138.
[12]	胡英杰, 李强, 李群. 考虑容量限制的构网型光储系统惯量与一次调频参数优化配置方法[J]. 中国电力, 2024, 57(10): 115-122.
[13]	刘志文, 李岩, 邵冲, 范心明, 曾庆辉. 考虑柔性资源协同互动的配电网灵活性评估方法[J]. 中国电力, 2024, 57(10): 158-165.
[14]	朱睿, 欧乙丁, 李筱天, 雷星雨, 周宇晴, 张珀扬, 欧睿. 基于外特性等值的虚拟电厂灵活性资源价值评估[J]. 中国电力, 2024, 57(1): 30-39.
[15]	许彦平, 施浩波, 秦晓辉, 赵明欣, 白婕, 丁保迪. 源-荷应用场景下储热式电锅炉投资经济性分析[J]. 中国电力, 2023, 56(2): 123-132.

模态框（Modal）标题

一次调频参数对超超临界二次再热机组性能的影响

Influence of Primary Frequency Regulation Parameters on Performance of a Ultra-supercritical Double Reheat Unit

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献 21

相关文章 15

编辑推荐

Metrics