中国电机工程学报
中國電機工程學報
중국전궤공정학보
ZHONGGUO DIANJI GONGCHENG XUEBAO
2014年
11期
1787-1798
,共12页
直接产生蒸汽%抛物面槽式聚光集热%太阳能热力电站%动态模型%仿真
直接產生蒸汽%拋物麵槽式聚光集熱%太暘能熱力電站%動態模型%倣真
직접산생증기%포물면조식취광집열%태양능열력전참%동태모형%방진
direct steam generation%parabolic trough collectors%solar thermal power plant%dynamic model%simulation
采用模块化建模方法研究了无蓄热装置再循环方式直接产生蒸汽型抛物面槽式太阳能热动力发电站(solar thermal power plant using direct steam generation in parabolic trough collectors filed，DSG-PTCs-STTP)热力系统动态仿真模型。依照守恒定律和热力学、传热学、流体力学等基本关系式，在一定简化条件下，研究了抛物面槽式聚光集热系统的聚光器、预热段、蒸发段、过热段及汽水缓冲分离器的数学模型，结合其他已有的仿真模型(如流体网络、汽轮机、凝汽器、除氧器、水泵、发电励磁等过程及设备模型等)，建立了完整的DSG-PTCs-STTP 热力系统实时动态仿真模型。仿真试验表明所开发的仿真模型能够正确反映研究对象热力系统动态特性和全工况运行过程，模型运算稳定可靠。可用于DSG-PTCs-STTP 机组实时仿真系统的开发，还可为机组运行特性研究和控制系统验证提供良好的非线性对象模型。
採用模塊化建模方法研究瞭無蓄熱裝置再循環方式直接產生蒸汽型拋物麵槽式太暘能熱動力髮電站(solar thermal power plant using direct steam generation in parabolic trough collectors filed，DSG-PTCs-STTP)熱力繫統動態倣真模型。依照守恆定律和熱力學、傳熱學、流體力學等基本關繫式，在一定簡化條件下，研究瞭拋物麵槽式聚光集熱繫統的聚光器、預熱段、蒸髮段、過熱段及汽水緩遲分離器的數學模型，結閤其他已有的倣真模型(如流體網絡、汽輪機、凝汽器、除氧器、水泵、髮電勵磁等過程及設備模型等)，建立瞭完整的DSG-PTCs-STTP 熱力繫統實時動態倣真模型。倣真試驗錶明所開髮的倣真模型能夠正確反映研究對象熱力繫統動態特性和全工況運行過程，模型運算穩定可靠。可用于DSG-PTCs-STTP 機組實時倣真繫統的開髮，還可為機組運行特性研究和控製繫統驗證提供良好的非線性對象模型。
채용모괴화건모방법연구료무축열장치재순배방식직접산생증기형포물면조식태양능열동력발전참(solar thermal power plant using direct steam generation in parabolic trough collectors filed，DSG-PTCs-STTP)열력계통동태방진모형。의조수항정률화열역학、전열학、류체역학등기본관계식，재일정간화조건하，연구료포물면조식취광집열계통적취광기、예열단、증발단、과열단급기수완충분리기적수학모형，결합기타이유적방진모형(여류체망락、기륜궤、응기기、제양기、수빙、발전려자등과정급설비모형등)，건립료완정적DSG-PTCs-STTP 열력계통실시동태방진모형。방진시험표명소개발적방진모형능구정학반영연구대상열력계통동태특성화전공황운행과정，모형운산은정가고。가용우DSG-PTCs-STTP 궤조실시방진계통적개발，환가위궤조운행특성연구화공제계통험증제공량호적비선성대상모형。
With an modular modeling method, a real-time dynamic simulation model for the thermodynamics system of a solar thermal power plant using direct steam generation in parabolic trough collectors filed (DSG-PTCs-STTP) without heat storage was developed. With certain simplification and assumption, the mathematics model about the solar collector fields, pre-heat, evaporator, super-heat system and buffer steam accumulator in a DSG solar collection and heating system were studied on the basis of the conservation principle and the basic equations of engineering thermodynamics, heat transfer theory and hydrodynamics. The complete real-time dynamic simulation model for the thermodynamic system of DSG-PTCs-STTP was built on the basis of above mathematics models and combined other relevant model (such as fluid network, turbine, condenser, deaerator, pump, alternator and excitation system). The simulation tests show that the developed simulation model can correctly simulate the dynamic characteristic and overall operating process of the DSG-PTCs-STTP, the iterative method applied in the models is stable. The dynamic simulation model can be used to develop the DSG-PTCs-STTP simulator, and is a good nonlinear object model for testing and validating the control system, and studying the operating performance of the DSG-PTCs-STTP.
