本文關(guān)鍵詞：基于多領(lǐng)域統(tǒng)一建模語言的火電廠回?zé)嵯到y(tǒng)建模及其應(yīng)用分析　出處：《東南大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 多領(lǐng)域統(tǒng)一建模 Modelica OperModelica 回?zé)嵯到y(tǒng) 建模

【摘要】：火電廠回?zé)嵯到y(tǒng)是全廠熱力系統(tǒng)的核心,它的運(yùn)行情況對整個(gè)發(fā)電廠的安全性和經(jīng)濟(jì)性運(yùn)行起著十分重大的影響。建立重用性高、拓展性強(qiáng)且易于和火電廠其它領(lǐng)域軟件系統(tǒng)集成的回?zé)嵯到y(tǒng)仿真軟件包,分析回?zé)嵯到y(tǒng)的靜、動(dòng)態(tài)特性,為提高火電廠的運(yùn)行經(jīng)濟(jì)性,提供有力的軟件支持,具有重要的研究意義和應(yīng)用價(jià)值。論文對回?zé)嵯到y(tǒng)建模與仿真應(yīng)用的有關(guān)問題,做了理論分析和研究：1)根據(jù)回?zé)嵯到y(tǒng)的工質(zhì)流程及主要設(shè)備的物理特性,將回?zé)嵯到y(tǒng)劃分為多個(gè)相對獨(dú)立的子系統(tǒng),運(yùn)用集總參數(shù)法建立了各子系統(tǒng)的數(shù)學(xué)模型；2)基于多領(lǐng)域統(tǒng)一建模語言Modelica,采用面向?qū)ο蟮姆椒?使用開源仿真平臺(tái)OpenModelica,開發(fā)了回?zé)嵯到y(tǒng)仿真軟件包；3)使用軟件包計(jì)算分析了揚(yáng)二電廠600MW機(jī)組回?zé)嵯到y(tǒng)100%負(fù)荷工況下的靜態(tài)特性,驗(yàn)證了軟件包的算法穩(wěn)定性和參數(shù)精確度。在此基礎(chǔ)上提出了一種基于回?zé)嵯到y(tǒng)仿真靜態(tài)特性的耗差分析方法,和傳統(tǒng)耗差分析方法的計(jì)算對比表明,可望成為多參數(shù)、全變工況計(jì)算的耗差分析新方法；4)使用軟件包對揚(yáng)二電廠600MW回?zé)嵯到y(tǒng)進(jìn)行動(dòng)態(tài)仿真,研究了無調(diào)節(jié)作用下,回?zé)嵯到y(tǒng)在T-MCR負(fù)荷工況下系統(tǒng)主要調(diào)節(jié)量(燃料量、汽機(jī)調(diào)門開度)發(fā)生擾動(dòng)時(shí)系統(tǒng)主要參數(shù)的動(dòng)態(tài)響應(yīng)特性,其結(jié)果可應(yīng)用于優(yōu)化控制系統(tǒng)設(shè)計(jì)中。本文基于開源平臺(tái)開發(fā)的電廠回?zé)嵯到y(tǒng)仿真軟件包及其應(yīng)用分析方法,具有較高的理論意義和應(yīng)用價(jià)值。
[Abstract]:The regenerative system of thermal power plant is the core of the whole plant thermal system, its operation situation plays a very important role in the safety and economic operation of the whole power plant. The simulation software package of regenerative system, which is easy to integrate with other thermal power plant software system, is developed, and the static and dynamic characteristics of regenerative system are analyzed, which can provide powerful software support for improving the operation economy of thermal power plant. This paper makes a theoretical analysis and research on the application of regenerative system modeling and simulation according to the working fluid flow of the regenerative system and the physical characteristics of the main equipment. The regenerative system is divided into several relatively independent subsystems, and the mathematical models of each subsystem are established by means of lumped parameter method. 2) based on the multi-domain unified modeling language Modelica, the simulation software package of regenerative system is developed by using the object-oriented method and the open source simulation platform OpenModelica. 3) the static characteristics of regenerative system of 600MW unit in Yanger Power Plant under 100% load condition are calculated and analyzed by using software package. The algorithm stability and parameter accuracy of the software package are verified. On the basis of this, a loss difference analysis method based on the static characteristics of the regenerative system simulation is proposed, which is compared with the traditional energy loss analysis method. It is expected that it will become a new method for the analysis of loss difference in the calculation of multi-parameter and all-variable working conditions. 4) the dynamic simulation of 600MW regenerative system in Yanger Power Plant is carried out by using software package, and the main regulating quantity (fuel quantity) of regenerative system under T-MCR load condition is studied. Dynamic response characteristics of the main parameters of the system when disturbance occurs. The results can be applied to the design of optimal control system. The simulation software package and its application analysis method developed in this paper based on open source platform are of high theoretical significance and application value.
【學(xué)位授予單位】：東南大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TM621

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本文編號：1394110