中国电力 ›› 2020, Vol. 53 ›› Issue (6): 140-146.DOI: 10.11930/j.issn.1004-9649.201811092

• 发电 • 上一篇    下一篇

热电厂配置调峰电锅炉最佳容量确定方法

曹丽华1, 潘同洋1, 司和勇1, 姜铁骝1, 曹兴2, 赵金峰2   

  1. 1. 东北电力大学 能源与动力工程学院,吉林 吉林 132012;
    2. 吉林省电力科学研究院有限公司,吉林 长春 130012
  • 收稿日期:2018-11-15 修回日期:2019-12-20 发布日期:2020-06-05
  • 作者简介:曹丽华(1973-),女,博士,教授,博士生导师,从事火电厂节能减排、灵活性改造及汽轮机经济运行与优化等研究,E-mail:caolihua@neepu.edu.cn
  • 基金资助:
    吉林省电力科学研究院有限公司科技项目(JLDKY001)

Determination of the Optimal Capacity of Peaking Electric Boiler in CHP Unit

CAO Lihua1, PAN Tongyang1, SI Heyong1, JIANG Tieliu1, CAO Xing2, ZHAO Jinfeng2   

  1. 1. School of Energy and Power Engineering, Northeast Electric Power University, Jilin 132012, China;
    2. Jilin Electric Power Research Institute Co., Ltd., Changchun 130012, China
  • Received:2018-11-15 Revised:2019-12-20 Published:2020-06-05
  • Supported by:
    This work is supported by Science and Technology Project of Jilin Electric Power Research Institute Co., Ltd.(No.JLDKY001)

摘要: 热电联产机组配置电锅炉进行热电解耦以促进风电等新能源的并网。为了确定热电联产机组参与电网调峰时电锅炉的最佳配置容量,引入特征日的概念,对电锅炉运行时的约束进行说明,分别以机组调峰增量和经济净现值为目标函数,建立电锅炉最佳容量的计算模型。结果表明,对于330 MW机组,当不考虑投资成本时,电锅炉的供热功率达到52 MW时,机组可以获得最大的调峰增量,此时,电锅炉的电加热功率为178.28 MW;若考虑投资成本,当电锅炉的供热功率达到49 MW时,即电锅炉的电加热功率为168 MW时,可以得到最大的经济净现值。

关键词: 热电联产, 风热冲突, 电锅炉, 调峰增量, 经济净现值, 最佳容量

Abstract: The cogeneration unit is equipped with an electric boiler for thermal electro-coupling to promote the integration of new energy such as wind power. To determine the optimal capacity configuration of the medium-electric boiler in the thermal power plant, the concept of the feature day is introduced, and the constraints during the boiler operation are elaborated in this paper. Then a mathematical model is established by setting peaking increment and economic net present value of the unit as the objective functions respectively. The results show that for the 330 MW unit, when the heating supply of the electric boiler reaches 52 MW, the maximum peak-increasing increment can be obtained if the investment cost is not considered. The electric heating power of the electric boiler is 178.28 MW by then. While in the case of the investment cost taken into account, with the heating power of the electric boiler reaching 49 MW, the electric heating power of the electric boiler is 168 MW and the maximum economic net present value is achieved.

Key words: CHP unit, wind and heat conflict, electric boiler, peak load increment, economic net present value, optimal capacity