S-CO_(2)布雷顿循环发电系统启停控制策略及动态特性研究  

Research on Start-stop Control Strategy and Dynamic Characteristics of S-CO_(2)Brayton Cycle Power Generation System

作　　者：王超[1] 张宝瑞 郭亚龙 刘斌[1] 全向 白文刚 王利民[1] 车得福[1] WANG Chao;ZHANG Baorui;GUO Yalong;LIU Bin;QUAN Xiang;BAI Wengang;WANG Limin;CHE Defu(State Key Laboratory of Multiphase Flow in Power Engineering(Xi'an Jiaotong University),Xi'an 710049,Shaanxi Province,China;Inner Mongolia Three Gorges Mengneng Energy Co.,Ltd.,Hohhot 010020,Inner Mongolia Autonomous Region,China;Inner Mongolia Power(Group),Co.,Ltd.,Hohhot 010020,Inner Mongolia Autonomous Region,China;Xi'an Thermal Power Research Institute Co.,Ltd.,Xi'an 710049,Shaanxi Province,China)

机构地区：[1]动力工程多相流国家重点实验室(西安交通大学),陕西省西安市710049 [2]内蒙古三峡蒙能能源有限公司,内蒙古自治区呼和浩特市010020 [3]内蒙古电力(集团)有限责任公司,内蒙古自治区呼和浩特市010020 [4]西安热工研究院,陕西省西安市710049

出　　处：《中国电机工程学报》2025年第3期999-1009,I0016,共12页PROCEEDINGS OF THE CHINESE SOCIETY FOR ELECTRICAL ENGINEERING

基　　金：陕西省自然科学基础研究计划(2023-JC-QN-0482)。

摘　　要：为使超临界二氧化碳(supercritical carbon dioxide,S-CO_(2))发电系统启停兼具安全性与快速性,该文针对600 MW S-CO_(2)再压缩循环发电系统,提出一种两段式的热态启停控制策略。两阶段分别利用阀门联合库存控制负荷策略和改变透平入口温度控制负荷策略来实现。并提出系统各设备依次冷态启停的实施方案。利用该文提出的启停控制策略,实现600 MW S-CO_(2)再压缩循环发电系统的启停过程。对系统启停过程的安全指标:压缩机喘振裕度、加热器最低流量、管壁温变化速率、工质高低压进行检验,所有安全指标均可得到满足。停机过程所花时间为1.11 h;启动过程所花时间为1.09 h,与文献相比,启动时长缩短0.57 h,停机时长缩短0.83 h,证明该文所设计启停控制策略的合理性和有效性。To ensure safe and fast startup and shutdown of supercritical carbon dioxide(S-CO_(2))power generation system,the paper proposes a two-stage control strategy for the warm start-stop of a 600 MW S-CO_(2)recompression cycle power generation system.The two stages employ the valve joint inventory to control load strategy and the turbine inlet temperature control strategy,respectively.Besides,the implementation schemes of cold start and stop of each equipment in the system are put forward.Based on the startstop control strategy proposed,the start-stop process of 600 MW S-CO_(2)recompression cycle power generation system is simulated.The safety indexes of the system during start and stop are tested and satisfied,including the compressor surge margin,the heater minimum flow rate,the tube wall temperature change rate,and the working fluid maximal and minimal pressures.The stop process takes 1.11 h,and the start process takes 1.09 h.Compared with the literature,the start time is shortened by 0.57 h and the stop time is shortened by 0.83 h,validating the effectiveness of the start-stop control strategy designed in this paper.

关 键 词：超临界二氧化碳 发电系统 启停过程 动态特性 库存控制 

分 类 号：TK39[动力工程及工程热物理—热能工程]