Review of Research on Enhance Flexibility Methods of Combined Heat and Power Units

SUN Jian; WU Baogang; WANG Guoshun; QIN Yu; YANG Yongping

doi:10.19805/j.cnki.jcspe.2025.240048

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Review of Research on Enhance Flexibility Methods of Combined Heat and Power Units

更新时间：2026-01-27

- Review of Research on Enhance Flexibility Methods of Combined Heat and Power Units
- Chinese Journal of Power Engineering Vol. 45, Issue 4, Pages: 626-634(2025)
- 作者机构：
  
  华北电力大学新能源电力全国重点实验室,北京,102206
- 作者简介：
- 基金信息：
- DOI：10.19805/j.cnki.jcspe.2025.240048
  CLC： TM621
- Published Online：28 April 2025，
  
  Published：2025
- 稿件说明：
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孙健,吴宝钢,王国顺,秦宇,杨勇平. 热电联产机组灵活性提升方法研究综述动力工程学报, 2025, 45(4): 626-634 https://doi.

org/10.19805/j.cnki.jcspe.2025.240048
孙健,吴宝钢,王国顺,秦宇,杨勇平. 热电联产机组灵活性提升方法研究综述动力工程学报, 2025, 45(4): 626-634 https://doi. DOI： 10.19805/j.cnki.jcspe.2025.240048.

org/10.19805/j.cnki.jcspe.2025.240048 DOI：

摘要

2022年

我国火力发电量占全年总发电量的58.4%

其中火电机组中超过40%为热电联产机组;而可再生能源在我国的发电占比逐年上升

其波动性对热电联产机组的灵活性提出了更高的要求。目前对灵活性的改造技术主要分为运行方式、系统结构及设备改造

对其中高中压旁路改造、储热改造、热泵改造和低压缸零出力方案等改造方案及应用进行了分析。结果表明:多种灵活性改造方案联用相比于单一改造方案的整体能源利用率高

更易实现深度调峰;后续应对多种改造方案联用的运行策略进行优化研究

进而提升热电机组灵活性以实现低碳化和灵活性的双重目标。

Abstract

In 2022

China's thermal power generation accounts for 58.4% of the total annual power generation

with more than 40% of thermal power units being cogeneration units. The proportion of renewable energy in China's power generation is gradually rising

and its volatility puts forward higher requirements for the flexibility of cogeneration units. At present

the flexible transformation technology mainly includes operation mode

system structure and equipment transformation. The transformation schemes and applications such as high and medium pressure bypass transformation

heat storage transformation

heat pump transformation and low pressure cylinder zero output scheme were analyzed. Results show that compared with the single transformation scheme

the combination of multiple flexible transformation schemes has higher overall energy efficiency and is easier to achieve deep peak shaving. In the follow-up

the operation strategy of combining multiple transformation schemes should be optimized

so as to improve the flexibility of thermal power units and achieve the dual goals of low-carbon and flexibility.

关键词

Keywords

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