供热机组以热定电调峰范围的研究

doi:10.11930/j.issn.1004-9649.2013.3.59.3

摘要/Abstract

摘要： 中国东北地区,供热机组在总装机容量中占有相当大的比重,冬季采暖季节,在风电大规模并网条件下,电网低谷调峰压力巨大。为了缓解冬季电网调峰压力,合理安排电量计划,研制开发了“以热定电”在线监测系统。基于供热机组以热定电的在线监测系统,核定了供热机组调峰负荷的边界条件;通过汽轮机变工况计算,确定不同抽汽量下电负荷调峰范围的数学模型,同时考虑汽轮机实际运行效率的修正及初终参数变化对发电功率的修正。通过实例计算验证该方法以热定电数学模型的准确性,为此该方法更符合机组的实际运行状况,对电网公司安排交易计划、调峰及最大限度地吸纳风电起到指导性作用。

关键词: 供热机组, 调峰, 调度范围, 风电, 电力交易

Abstract: In northeast China, heat-supply units account for a large proportion in the total installed capacity. In winter heating seasons, the connection of bulk wind power to the power grid makes the peak regulation for valley load very challenging. In order to ease the pressure of winter peak regulation and formulate a reasonable electricity plan, an online monitoring system for heat-load-determined power load is developed. In this system, the boundary conditions of peak load for heat-supply units are determined. By calculating different conditions of the steam turbine, a mathematical model of peak regulation scope under different extraction flows is established with the correction of practical turbine running efficiency and the correction of initial parameters on the output power in consideration. Calculations and experiments have proved the accuracy of the model, which indicates that this method is suitable for the actual operation of the units and can provide guidance for grid companies to make their power transaction plans and peak regulation as well as maximize the accommodation of wind power.

Key words: heat-supply turbine units, peak regulation, power dispatch scope, wind power, power trading

中图分类号:

TM73

王漪，薛永锋，邓楠. 供热机组以热定电调峰范围的研究[J]. 中国电力, 2013, 46(3): 59-62.

WANG Yi, XUE Yong-feng, DENG Nan. Study on Heat-Load-Based Peak Regulation for Cogeneration Units[J]. Electric Power, 2013, 46(3): 59-62.

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链接本文: https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.2013.3.59.3

https://www.electricpower.com.cn/CN/Y2013/V46/I3/59

参考文献

[1] 盛德仁,陈坚红,李蔚,等. 供热机组间热电负荷优化分配的研究[J]. 动力工程,2001,21（6）：1560-1563.
SHENG De-ren, CHEN Jian-hong, LI Wei, et al . Research on optimized distribution of thermal and electric load in the heat- supply units[J]. Power Engineering, 2001,21(6):1560-1563.
[2] 魏昭峰. 风电在我国能源发展中的定位[J]. 中国电力,2011,44（4）：1-5.
WEI Zhao-feng. Role of wind power in the energy development in China[J]. Electric Power, 2011,44(4):1-5.
[3] 张灵凌. 热电厂最小运行方式分析与监管研究[D]. 北京：华北电力大学,2011：40-49.
ZHANG Ling-ling. Analysis and supervision research on minimum run mode of cogeneration plant[D]. Beijing: North China Electric Power University, 2011:40-49.
[4] 姚立强,郭江龙,王兴国,等.调节抽气式汽轮机参与电网调峰的负荷特性分析[J]. 汽轮机技术,2009,51（1）:61-63.
YAO Li-qiang, GUO Jiang-long, WANG Xing-guo, et al . The analysis of load characteristics about regulated extraction turbine’s peak regulation in electric network[J]. Turbine Technology, 2009, 51(1):61-63.
[5] 马建伟,葛挺,荆百林,等. 热电联产机组的节能发电调度技术研究与实践[J].中国电力,2009,42（4）:14-17.
MA Jian-wei, GE Ting, JING Bai-lin, et al . Research and practice for energy-saving power generation and dispatching of cogeneration power unit[J]. Electric Power, 2009,42(4):14-17.
[6] 孙玮,尚力,刘继东,等.山东热电联产机组在线监测系统的研究[J].热力发电,2009,38（11）：90-92.
SUN Wei, SHANG Li, LIU Ji-dong, et al . Study on on-line monitoring system for cogeneration units in Shandong province[J].Thermal Power Generation, 2009, 38(11):90-92.
[7] 魏豪,刁学广,赵伟东. 供热电厂热电负荷优化分配系统的研制[J]. 东北电力技术,2002（11）：15-18.
WEI Hao, DIAO Xue-guang, ZHAO Wei-dong. Research on heat/power loads optimizing distribution system for heat-supply power plants[J]. Northeast Electric Power Technology, 2002(11):15-18.
[8] DL/T 892—2004 电站汽轮机技术条件[S].北京：中国电力出版社,2005.
[9] 王兴国,何燕玲,张海良. 供热机组调峰运行中的最小出力分析[J]. 河北电力技术,2006,25（6）：46-48.
WANG Xing-guo, HE Yan-ling, ZHANG Hai-liang. Analysis on minimal load of thermal power unit during peaking adjustment operation[J]. Hebei Electric Power, 2006,25(6)：46-48.
[10] 初立森,李敏,李海峰. 供热机组的热力与运行特性探讨[J].吉林电力,2009,37（6）：1-5.
CHU Li-sen, LI Min, LI Hai-feng. Thermal performance and operating characteristics on heat-supplying units[J]. Jilin Electric Power, 2009,37(6):1-5.
[11] 倪景峰. 热电联产机组以热定电运行的研究及软件实施[D]. 北京：华北电力大学,2004.
[12] 杨伟光,鲁爱,李学刚. 供热机组在线监测系统调峰计算方案研究[J]. 吉林电力,2010,38（6）：5-7.
YANG Wei-guang, LU Ai, LI Xue-gang. Study on peak regulation calculation scheme for on-line monitoring system of heat- supplying units[J]. Jilin Electric Power, 2010,38(6):5-7.
[13] 张莉,程超峰,姚秀平,等. 大型汽轮机变工况热力参数的3种计算方法及其比较[J]. 汽轮机技术,2012,54（2）：5-9.
ZHANG Li, CHENG Chao-feng, YAO Xiu-ping, et al . Comparison of three calculating procedures for thermodynamic parameters under variable operating conditions of high-power turbine[J].Turbine Technology, 2012,54(2):5-9.
[14] 李维特,黄保海.汽轮机变工况热力计算[M].北京：中国电力出版社,2001.
[15] 谢春林,薛永锋,王松岭.供热机组在线监测系统以热定电模型研究[J]. 东北电力技术,2012（7）：9-11.
XIE Chun-lin, XUE Yong-feng, WANG Song-ling. Research on the model of ordering power by heat in on-line monitoring system of heat-supply turbine units[J]. Northeast Electric Power Technology, 2012(7):9-11.