国内首台Ansaldo GT36-S5重型燃气轮机联合循环机组一键启停技术优化与应用

Research and Application of One-Button Start-Stop Technology for the First Ansaldo GT36-S5 Heavy-Duty Gas Turbine Combined Cycle Unit in China

摘要

传统火电机组启动过程存在操作耗时长、参数波动大、经济性差等问题，难以满足现代电网对快速调峰响应的需求。燃气-蒸汽联合循环机组以其启动迅速、调节灵活、清洁高效的特点在电网调峰中扮演着至关重要的角色。本文针对首台GT36燃气轮机、首台高压直流的余热锅炉、首台250MW级蒸汽轮机汽机的联合循环机组，系统分析燃机启动顺控优化、汽机暖机过程改进和锅炉转态控制三大关键技术环节，提出一套全面优化方案，为提升燃机电厂自动化水平、缩短启动时间、降低能耗提供理论依据和实践参考，为燃气-蒸汽联合循环机组智能化控制提供了可推广的技术路径，对提升联合循环电厂日启夜停调峰能力具有显著工程应用价值。

Abstract

The traditional thermal power unit startup process faces issues such as long operation time, significant parameter fluctuations, and poor economic efficiency, making it difficult to meet the modern power grid’s demand for rapid peak shaving response. Gas-steam combined cycle units play a crucial role in power grid peak shaving due to their rapid start-up, flexible regulation, cleanliness, and high efficiency. This paper systematically analyzes three key technical aspects of the combined cycle unit: gas turbine start-up sequence control optimization, steam turbine warm-up process improvement, and boiler transition control, focusing on the first GT36 gas turbine, the first high-pressure direct current waste heat boiler, and the first 250MW steam turbine. A comprehensive optimization scheme is proposed, providing theoretical basis and practical reference for improving the automation level of gas turbine power plants, shortening start-up time, and reducing energy consumption. It also offers a scalable technical path for intelligent control of gas-steam combined cycle units, which has significant engineering application value in enhancing the peak shaving capability of combined cycle power plants from daytime operation to nighttime shutdown

关键词

GT36 / 直流余热锅炉 / 一键启停技术

Key words

GT36 / DC waste heat boiler / One-click start-stop technology

参考文献

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