上海交通大学学报

上海交通大学学报 >

2025 , Vol. 59 >Issue 11: 1694 - 1706

DOI: https://doi.org/10.16183/j.cnki.jsjtu.2023.602

新型电力系统与综合能源

基于灵活性改造的火电机组参与快速调频的协调控制方案

  • 张建华 ,
  • 姚祎 ,
  • 赵思 ,
  • 王永岳
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  • 华北电力大学 控制与计算机工程学院, 北京 102206
张建华(1969—),教授,博士生导师,从事多调频资源耦合系统快速调频的协同优化及协调控制研究.
赵 思,博士生;E-mail:zhaosi@ncepu.edu.cn.

收稿日期: 2023-11-27

  修回日期: 2023-12-12

  录用日期: 2023-12-26

  网络出版日期: 2024-02-28

基金资助

国家重点研发计划(2019YFB1505400)

收起

A Coordinated Control Scheme for Fast Frequency Regulation of Thermal Power Units Based on Flexibility Transformation

  • ZHANG Jianhua ,
  • YAO Yi ,
  • ZHAO Si ,
  • WANG Yongyue
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  • School of Control and Computer Engineering, North China Electric Power University, Beijing 102206, China

Received date: 2023-11-27

  Revised date: 2023-12-12

  Accepted date: 2023-12-26

  Online published: 2024-02-28

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摘要

随着可再生能源在电力系统中普及,提高火电机组的一次调频能力以抑制电网频率波动是目前需要攻克的一个难题.火电厂的灵活性运行在保证电网安全稳定运行方面发挥重要作用,传统的火电机组一次调频策略采用协调控制系统(CCS)和数字电液调节系统(DEH).凝结水节流(CT)和高加给水旁路节流(HPHFB)是当前改造的主要途径,能改善火电机组快速调频特性.因此,本文结合CCS、DEH、CT、HPHFB这4种控制方式提出新调频策略.此外,为了提高火电机组的快速调频性能,结合万有引力搜索算法和模糊增益调度策略,提出适用于多工况的火电机组快速调频策略,仿真结果验证了改进控制策略的有效性.

关键词： 一次调频; 灵活性运行; 万有引力搜索算法; 模糊增益调度

本文引用格式

张建华 , 姚祎 , 赵思 , 王永岳 . 基于灵活性改造的火电机组参与快速调频的协调控制方案[J]. 上海交通大学学报, 2025 , 59(11) : 1694 -1706 . DOI: 10.16183/j.cnki.jsjtu.2023.602

Abstract

With the popularization of renewable energy in the power system, improving the primary frequency regulation capability of thermal power units to suppress grid frequency fluctuations is currently a difficult problem to solve. However, the flexibility transformation of thermal power plants plays an important role in ensuring the safe and stable operation of the power grid. Traditional thermal units use coordinated control system (CCS) and digital electro-hydraulic control systems (DEH). With the transformation of condensate throttling (CT) and high-pressure heaters’ feedwater bypass (HPHFB), the fast frequency regulation characteristics of thermal units can also be improved. Therefore, in this paper, a new frequency regulation strategy is proposed by combining CCS, DEH, CT, and HPHFB. Additionally, gravitational search algorithm and fuzzy gain scheduling control strategy are combined to suit multiple operating conditions of thermal units to improve the fast frequency regulation performance of thermal units. The simulation results verify the effectiveness of the improved control strategy.

Key words： primary frequency regulation (PFR); operational flexibility; gravitational search algorithm (GSA); fuzzy gain scheduling

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