火电快速甩负荷机组动态仿真建模
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摘要
快速甩负荷(FCB)技术是一种能够在电网黑启动中发挥关键作用的技术,而FCB机组动态仿真模型是研究FCB技术的基础。现有常规火电机组模型均无法准确模拟FCB工况的动态特性,为此在分析总结火电机组实现FCB功能所必需的各项技术的基础上,建立了含旁路系统的汽轮机模型以及含FCB功能的原动机调速系统模型,并加入锅炉、电力系统稳定器(PSS)、励磁系统及发电机模型组成含FCB功能的火电机组动态模型。以台山电厂FCB实验机组为例,通过Matlab/Simulink建立FCB机组的动态仿真模型,其仿真结果与现场实验结果基本一致,说明所建立的FCB机组动态模型能够准确地模拟机组在FCB工况下的动态特性,可为研究FCB机组和大旁路机组及其在电力系统的应用提供模型参考。
Fast cut back(FCB) technique plays an important role in power system black-start, and the detailed dynamic model of the FCB thermal unit is the fundamental of the FCB research. However, the current conventional thermal unit model cannot simulate the dynamics of FCB thermal unit accurately. Therefore, after analyzing the required techniques for the FCB function, this paper constructed thermal turbine model with a bypass system and prime mover model integrated a FCB function. After that, the complete dynamic model of FCB thermal units were built, including the turbine, prime mover, boiler, PSS, exciter and generator. A case study is undertaken based on the FCB thermal units in Taishan Power Plant through Matlab/Simulink software. The simulation results are consistent with field test results of the FCB thermal unit, which verify the proposed dynamic model. It can provide references to study FCB thermal units and other large bypass integrated units.
Fast cut back(FCB) technique plays an important role in power system black-start, and the detailed dynamic model of the FCB thermal unit is the fundamental of the FCB research. However, the current conventional thermal unit model cannot simulate the dynamics of FCB thermal unit accurately. Therefore, after analyzing the required techniques for the FCB function, this paper constructed thermal turbine model with a bypass system and prime mover model integrated a FCB function. After that, the complete dynamic model of FCB thermal units were built, including the turbine, prime mover, boiler, PSS, exciter and generator. A case study is undertaken based on the FCB thermal units in Taishan Power Plant through Matlab/Simulink software. The simulation results are consistent with field test results of the FCB thermal unit, which verify the proposed dynamic model. It can provide references to study FCB thermal units and other large bypass integrated units.
引文
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[16]郭钰锋,赵晓敏,于达仁,等.用于汽轮机甩负荷动态计算的数学模型[J].汽轮机技术,2006,48(2):104-107.Guo Yufeng,Zhao Xiaomin,Yu Daren,et al.Dynamic model of steam turbine for load rejection[J].Turbine Technology,2006,48(2):104-107.
[17]郭鑫.大型发电机组FCB功能的探讨[J].华北电力技术,2010(2):22-23.Guo Xin.Discussion of FCB function of large power generation set[J].North China Electric Power,2010(2):22-23.
[18]杨成民.600MW超临界压力火电机组系统与仿真运行[M].北京:中国电力出版社,2009.
[19]广东电网公司电力科学研究院.汽轮机设备及系统[M].北京:中国电力出版社,2011.
[20]黄树红.汽轮机原理[M].北京:中国电力出版社,2008.
[21]俞成立.1000MW汽轮机组甩负荷试验分析[J].华东电力,2007,35(6):32-34.Yu Chengli.Load rejection tests for 1000MW steam turbine units[J].East China Electric Power,2007,35(6):32-34.
[22]聂雨,张燕平,黄树红,等.汽轮机旁路系统仿真建模[J].热能动力工程,2013,28(4):336-340.Nie Yu,Zhang Yanping,Huang Shuhong,et al.Simulation and modeling of the bypass system of a steam turbine[J].Journal of Engineering for Thermal Energy and Power,2013,28(4):336-340.
[23]吕崇德.大型火电机组系统仿真与建模[M].北京:清华大学出版社,2002.
[24]河南省电力公司.火电工程调试技术手册(热工卷)[M].北京:中国电力出版社,2004.
[2]董新洲,曹润彬,王宾,等.印度大停电与继电保护的三大功能[J].电力系统保护与控制,2013,41(2):19-25.Dong Xinzhou,Cao Runbin,Wang Bin,et al.India blackout and three functions of protective relay[J].Power System Protection and Control,2013,41(2):19-25.
[3]覃智君,侯云鹤,李大虎,等.输电网负荷恢复方案的优化计算方法[J].电工技术学报,2016,31(8):116-124.Qin Zhijun,Hou Yunhe,Li Dahu,et al.Optimization method for constructing load restoration strategy of transmission systems[J].Transactions of China Electrotechnical Society,2016,31(8):116-124.
[4]顾雪平,王大江,梁海平,等.电力系统扩展黑启动方案动态综合评估[J].电工技术学报,2015,30(3):44-52.Gu Xueping,Wang Dajiang,Liang Haiping,et al.Dynamic comprehensive assessment of power system extended black-start plans[J].Transactions of China Electrotechnical Society,2015,30(3):44-52.
[5]区伟健,房鑫炎.基于熵值法和主成分分析法的黑启动模式评估[J].电力系统保护与控制,2014,42(8):22-27.Ou Weijian,Fang Xinyan.Assessment of black-start modes based on entropy value method and principal component analysis[J].Power System Protection and Control,2014,42(8):22-27.
[6]Lu En,Qin Zhijun,Liu Mingbo,et al.Increasing black start capacity by fast cut back function of thermal power plants[J].International Journal of Smart Grid and Clean Energy,2013,2(1):60-66.
[7]王立地,姚金环.FCB功能的成功应用与一种新的实现方案[J].自动化仪表,2004,25(6):48-52.Wang Lidi,Yao Jinhuan.Successful application of FCB and a new implementation strategy[J].Process Automation Instrumentation,2004,25(6):48-52.
[8]姚金环.对FCB若干问题的探讨[J].中国电力,2007,40(5):59-62.Yao Jinhuan.Discussion on several issues concerning FCB[J].Electric Power,2007,40(5):59-62.
[9]滕卫明.国产600MW超临界机组FCB功能实现[D].杭州:浙江大学,2008.
[10]刘麒,刘麟.FCB功能相关的发变组保护逻辑改造[J].电力系统保护与控制,2011,39(4):146-148.Liu Qi,Liu Lin.Improvements for generatortransformer protection logic relating to FCB function[J].Power System Protection and Control,2011,39(4):146-148.
[11]张文峰,苏宇,王宁,等.大型火电FCB机组空充500k V线路试验研究[J].电力自动化设备,2014,34(11):168-173.Zhang Wenfeng,Su Yu,Wang Ning,et al.Research of 500k V unloaded line energization by large-scale thermal FCB unit[J].Electric Power Automation Equipment,2014,34(11):168-173.
[12]刘皓明,丁帅,卢恩,等.含快速切负荷功能火电机组的电力系统黑启动策略[J].电力系统自动化,2013,37(9):23-28.Liu Haoming,Ding Shuai,Lu En,et al.A power system black-start strategy considering thermal power units with FCB function[J].Automation of Electric Power Systems,2013,37(9):23-28.
[13]Lu En,Wang Ning,Qin Zhijun,et al.Black-start strategy for power grids including fast cut thermal power units[C]//2013 IEEE Power&Energy Society General Meeting,Vancouver,BC,2013:1-5.
[14]Kundur P.Power system stability and control[M].Mc Graw-Hill Professional,1994.
[15]戴义平,张镇一.中间再热汽轮机采用快关技术的数字仿真[J].汽轮机技术,1985(1):18-28.Dai Yiping,Zhang Zhenyi.Simulation of reheat turbine with fast valving techniques[J].Turbine Technology,1985(1):18-28.
[16]郭钰锋,赵晓敏,于达仁,等.用于汽轮机甩负荷动态计算的数学模型[J].汽轮机技术,2006,48(2):104-107.Guo Yufeng,Zhao Xiaomin,Yu Daren,et al.Dynamic model of steam turbine for load rejection[J].Turbine Technology,2006,48(2):104-107.
[17]郭鑫.大型发电机组FCB功能的探讨[J].华北电力技术,2010(2):22-23.Guo Xin.Discussion of FCB function of large power generation set[J].North China Electric Power,2010(2):22-23.
[18]杨成民.600MW超临界压力火电机组系统与仿真运行[M].北京:中国电力出版社,2009.
[19]广东电网公司电力科学研究院.汽轮机设备及系统[M].北京:中国电力出版社,2011.
[20]黄树红.汽轮机原理[M].北京:中国电力出版社,2008.
[21]俞成立.1000MW汽轮机组甩负荷试验分析[J].华东电力,2007,35(6):32-34.Yu Chengli.Load rejection tests for 1000MW steam turbine units[J].East China Electric Power,2007,35(6):32-34.
[22]聂雨,张燕平,黄树红,等.汽轮机旁路系统仿真建模[J].热能动力工程,2013,28(4):336-340.Nie Yu,Zhang Yanping,Huang Shuhong,et al.Simulation and modeling of the bypass system of a steam turbine[J].Journal of Engineering for Thermal Energy and Power,2013,28(4):336-340.
[23]吕崇德.大型火电机组系统仿真与建模[M].北京:清华大学出版社,2002.
[24]河南省电力公司.火电工程调试技术手册(热工卷)[M].北京:中国电力出版社,2004.