深度调峰背景下火电机组热电解耦技术路径对比分析  

Analysis on Thermoelectric Decoupling Technology Paths for Thermal Power Units Under the Background of Deep Peak-Shaving

作　　者：郑淇薇 王华霆 陈衡 潘佩媛 徐钢[1] ZHENG Qiwei;WANG Huating;CHEN Heng;PAN Peiyuan;XU Gang(School of Energy,Power and Mechanical Engineering,North China Electric Power University,Changping District,Beijing 102206,China)

机构地区：[1]华北电力大学能源动力与机械工程学院,北京市昌平区102206

出　　处：《发电技术》2024年第2期207-215,共9页Power Generation Technology

基　　金：国家自然科学基金项目(52106008)。

摘　　要：新能源发电在出力和发电负荷上具有波动大、不稳定的特点,为解决新能源机组上网后带来的上述问题,利用多种热电解耦方式对火电机组进行改造,并对不同技术路径进行对比分析,探究火电机组解耦潜力与调峰能力。采用EBSILON Professional软件进行模拟仿真,对不同热电解耦方案下调峰负荷空间进行评估和对比分析。计算结果表明,低压缸零出力热电解耦改造方案可以使机组的调峰能力得到最大的改善。在原最大供热负荷304.60 MW下,最小发电量下降172.21 MW,最低电负荷率下降32.70%。火电机组经过热电解耦改造可显著提高热电机组与新能源机组的协调调峰能力,提高发电单元整体发电的稳定性。New energy power generation has the characteristics of large fluctuation and instability in output and power generation load.In order to solve the above problems brought by new energy units on the internet,a variety of thermoelectric decoupling modes was used to transform thermal power units,different technology paths were analyzed,and the potential of decoupling thermal power units and peak shifting capacity was explored.EBSILON professional software was used,and the peak load space under different thermoelectric decoupling schemes was evaluated and compared.The results show that the zero output thermoelectric decoupling transformation scheme of low pressure cylinder can improve the peak regulation capacity of the unit to the greatest extent.Under the original maximum heating load of 304.60 MW,the minimum power generation decreased by 172.21 MW,and the minimum power load rate decreased by 32.70%.Thermal power units after heat and power decoupling transformation can significantly improve the coordinated peaking ability of thermoelectric units and new energy units,and improve the stability of the overall power generation of power generation units.

关 键 词：火电机组 热电联产 热电解耦 抽汽供热 深度调峰 

分 类 号：TM621[电气工程—电力系统及自动化]