赵佳骏,邵建宇,吴业成,毛静宇,李蔚,林雪茹,周竞
ZHAO Jiajun,SHAO Jianyu,WU Yecheng,MAO Jingyu,LI Wei,LIN Xueru,ZHOU Jing

• 1:浙江浙能技术研究院有限公司
• 2:浙江省火力发电高效节能与污染物控制技术研究重点实验室
• 3:浙江浙能台州第二发电有限责任公司
• 4:国网浙江省电力有限公司紧水滩水力发电厂

摘要(Abstract)：

某发电厂两台超超临界机组配置由定速泵、双速泵及变频泵等6台水泵组成的循环水系统，运行方式较为复杂。为此，提出了一种循环水系统优化运行方法。应用EBSILON软件构建了耦合冷端系统的汽轮机精细化模型。基于模型仿真计算和函数拟合，确定了循环水系统及冷端寻优所需的关键特性曲线，提出了一种耦合盆地跳跃算法与序列最小二乘规划算法的混合优化方法。以机组收益功率最大为目标，对双速泵运行模式优化和变频泵运行模式优化进行研究，计算获得了各工况下的最优循环水泵组合及相应的净功率增益，证明了该方法的有效性。所提方法可为同类机组复杂循环水系统的节能优化运行提供有效的模型工具和决策方法。
The circulating water system of two ultra-supercritical generating units in a power plant consists of six pumps, including fixed-speed pumps, dual-speed pumps, and variable-frequency pumps, resulting in relatively complex operating modes. To address this issue, an optimal operation method for the circulating water system is proposed. A refined steam turbine model coupled with the condenser-side system is developed using EBSILON software. Based on model simulations and function fitting, the key characteristic curves required for circulating water system optimization and condenser-side performance evaluation are determined. A hybrid optimization method combining basin hopping and the sequential least squares quadratic programming(SLSQP) is proposed. With maximum unit profit power as the objective, optimization studies are conducted for both dual-speed pump and variablefrequency pump operating modes. The optimal combinations of circulating water pumps under various operating conditions and the corresponding net power gains are obtained, demonstrating the effectiveness of the proposed method. The method provides an effective modeling tool and decision-making approach for energy-efficient optimal operation of complex circulating water systems in similar units.

关键词(KeyWords)： 循环水泵;仿真建模;盆地跳跃算法;变频泵;优化决策
circulating water pump;simulation modeling;basin hopping;variable-frequency pump;optimal decision-making

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划（2024YFB4206500）

作者(Author): 赵佳骏,邵建宇,吴业成,毛静宇,李蔚,林雪茹,周竞
ZHAO Jiajun,SHAO Jianyu,WU Yecheng,MAO Jingyu,LI Wei,LIN Xueru,ZHOU Jing

DOI: 10.19585/j.zjdl.202608012

参考文献(References)：

• [1]张东青，金铁铮，张磊.基于循环水泵变频的1 000 MW超超临界机组冷端综合优化[J].发电技术，2024,45(6):1095-1104.Zhang Dongqing,Jin Tiezheng,Zhang Lei.Comprehensive optimization of the cold end of 1 000 MW ultrasupercritical unit based on pump frequency conversion[J].Power Generation Technology,2024,45(6):1095-1104.
• [2]周正道，包伟伟，秦英武，等.600 MW机组电动给水泵变频改造及经济性分析[J].浙江电力，2020(6):63-67.Zhou Zhengdao,Bao Weiwei,Qin Yingwu,et al. Frequency conversion renovation of electric feedwater pump of 600 MW unit and the economic efficiency analysis[J].Zhejiang Electric Power,2020(6):63-67.
• [3]冯晓波，许新宇，张文争，等.600 MW机组循环水泵变频改造及运行优化[J].宁夏电力，2022(4):70-74.Feng Xiaobo,Xu Xinyu,Zhang Wenzheng,et al. Frequency conversion transformation and operation optimization of circulating water pumps of 600 MW units[J].Ningxia Electric Power,2022(4):70-74.
• [4]黄思林，唐昊，王善同，等.330 MW机组电动给水泵变频改造及电液并存调速控制策略研究[J].广东电力，2023,36(2):143-150.Huang Silin,Tang Hao,Wang Shantong,et al.Frequency conversion renovation and research on comprehensive speed control strategy of electric feed water pump for 330MW unit[J]. Guangdong Electric Power,2023,36(2):143-150.
• [5]王川川，李金霞，禹贯省，等.1 000 MW超超临界机组凝结水泵变频改造[J].内蒙古电力技术，2019,37(2):84-87.Wang Chuanchuan,Li Jinxia,Yu Guansheng,et al. Frequency conversion of condensate pump of 1 000 MW ultrasupercritical unit[J].Inner Mongolia Electric Power,2019,37(2):84-87.
• [6]梁君，袁镇江，章鹏华，等.方家山1 000 MW核电机组冷端系统运行优化研究[J].汽轮机技术，2025,67(3):229-235.Liang Jun,Yuan Zhenjiang,Zhang Penghua,et al. Study on operation optimization of cold end system of Fangjiashan 1 000 MW nuclear power unit[J].Turbine Technology,2025,67(3):229-235.
• [7]王菁，陆军，刘宏文，等.火电机组变频循环水泵特性建模及优化分析[J].能源研究与利用，2023(3):7-11.Wang Jing,Lu Jun,Liu Hongwen,et al. Characteristic modeling and optimization analysis of variable frequency circulating water pump in thermal power unit[J].Energy Research&Utilization,2023(3):7-11.
• [8]王小龙，瞿七九.1 000 MW机组凝结水泵变频解耦控制在节能改造中的应用[J].浙江电力，2021,40(2):112-118.Wang Xiaolong,Qu Qijiu. Application of variable frequency decoupling control for condensate pump of 1 000MW units in energy saving reconstruction[J]. Zhejiang Electric Power,2021,40(2):112-118.
• [9]邵建宇，孙永平，奚宇.基于窜流量计算的凝汽器循环水流量测算方法研究[J].浙江电力，2023,42(1):103-109.Shao Jianyu,Sun Yongping,Xi Yu.Research on the circulating water flow method of condenser based on channeling flow calculation[J].Zhejiang Electric Power,2023,42(1):103-109.
• [10]Laskowski R,Smyk A,Lewandowski J,et al. Selecting the cooling water mass flow rate for a power plant under variable load with entropy generation rate minimization[J].Energy,2016,107:725-733.
• [11]闫旭.600 MW火电机组冷端优化试验研究[J].浙江电力，2017,36(2):58-64.Yan Xu. Research on cold end optimization test of 600MW coal-fired generating unit[J].Zhejiang Electric Power,2017,36(2):58-64.
• [12]Zhao T Y,Zhang J L,Ma L D.On-line optimization control method based on extreme value analysis for parallel variable-frequency hydraulic pumps in central airconditioning systems[J].Building and Environment,2012,47:330-338.
• [13]杜靖宇，陈华杰，李少波.发电厂循环水泵双速改造分析[J].浙江电力，2016,35(9):49-52.Du Jingyu,Chen Huajie,Li Shaobo.Two-speed retrofit of circulating water pumps in power plant[J].Zhejiang Electric Power,2016,35(9):49-52.
• [14]梅海龙，曾海波，段旺权，等.1 000 MW超超临界机组冷端系统运行优化[J].湖南电力，2024,44(1):140-144.Mei Hailong,Zeng Haibo,Duan Wangquan,et al.Optimization of cold end system operation for 1 000 MW ultra supercritical unit[J]. Hunan Electric Power,2024,44(1):140-144.
• [15]王渡，刘玉贤，万明元，等.660 MW超超临界机组循环水泵配置及运行方式优化[J].中国电力，2020,53(2):112-119.Wang Du,Liu Yuxian,Wan Mingyuan,et al. Configuration and operation optimization of circulating water pumps for 660 MW ultra-supercritical unit[J]. Electric Power,2020,53(2):112-119.
• [16]王胜虎，董春森，周向阳，等.2×660 MW火电机组变频调速循环水泵建模与优化控制研究[J].工业控制计算机，2024,37(8):151-153.Wang Shenghu,Dong Chunsen,Zhou Xiangyang,et al.Research on operation optimization for circulating water system with frequency converter of 2×660 MW unit[J].Industrial Control Computer,2024,37(8):151-153.
• [17]邓珊珊.基于集总参数模型的氢气加注系统的机器学习预测与优化[D].武汉：武汉理工大学，2022.Deng Shanshan.Machine learning prediction and optimization of hydrogen refueling system based on lumped parameter model[D].Wuhan:Wuhan University of Technology,2022.
• [18]Banerjee A,Jasrasaria D,Niblett S P,et al.Crystal structure prediction for benzene using basin-hopping global optimization[J].The Journal of Physical Chemistry A,2021,125(17):3776-3784.