本文選題：壓縮空氣儲(chǔ)能 + 模塊化建模��； 參考：《華北電力大學(xué)》2017年碩士論文

【摘要】：與常規(guī)能源相比,太陽能和風(fēng)能等可再生能源間歇性和不穩(wěn)定性的缺點(diǎn)導(dǎo)致其發(fā)電并網(wǎng)困難。同時(shí)電網(wǎng)存在用電高峰和低谷,如果靠一些調(diào)節(jié)系統(tǒng)來調(diào)節(jié)電網(wǎng)的用電量,勢(shì)必會(huì)導(dǎo)致鍋爐和汽機(jī)部分負(fù)荷發(fā)電,導(dǎo)致效益低下。儲(chǔ)能系統(tǒng)可以很好地彌補(bǔ)可再生能源發(fā)電的間歇性和不穩(wěn)定性,用電高峰時(shí)用儲(chǔ)能系統(tǒng)發(fā)電,用電低谷時(shí)用來儲(chǔ)存電能。由于機(jī)組容量、能量密度、系統(tǒng)效率、輸出功率、儲(chǔ)能周期、充放電時(shí)間、運(yùn)行成本、環(huán)境友好等因素,壓縮空氣儲(chǔ)能電站已大規(guī)模被商業(yè)化應(yīng)用。本文基于國內(nèi)外關(guān)于壓縮空氣儲(chǔ)能的研究成果,以TICC-500和中科院1.5MW示范電站為研究對(duì)象,依據(jù)能量、質(zhì)量守恒方程以及流體力學(xué)、傳熱學(xué)、工程熱力學(xué)等相關(guān)專業(yè)知識(shí),查閱相關(guān)文獻(xiàn)資料,結(jié)合各環(huán)節(jié)工質(zhì)工作與流動(dòng)因素,采用模塊化建模的方法,研究了先進(jìn)絕熱壓縮空氣儲(chǔ)能系統(tǒng)中壓氣機(jī)、換熱器、聯(lián)箱、儲(chǔ)氣罐、透平機(jī)等設(shè)備的數(shù)學(xué)模型;根據(jù)所研發(fā)的數(shù)學(xué)模型,利用C程序編寫相應(yīng)的算法,在STAR-90仿真支撐系統(tǒng)平臺(tái)上建立對(duì)應(yīng)的仿真模塊,結(jié)合平臺(tái)中已有的設(shè)備/部件(如空氣邊界條件、泵、壓力節(jié)點(diǎn)、閥門等)的仿真模塊,研發(fā)了具有一定通用性的先進(jìn)絕熱壓縮空氣儲(chǔ)能電站熱力系統(tǒng)實(shí)時(shí)動(dòng)態(tài)仿真模型,基于模型模擬研究了此類型電站熱力系統(tǒng)的動(dòng)態(tài)特性。利用文獻(xiàn)相關(guān)數(shù)據(jù)和曲線驗(yàn)證了仿真模型的靜態(tài)精度和動(dòng)態(tài)特性;基于仿真模型研究了先進(jìn)絕熱壓縮空氣儲(chǔ)能電站熱力系統(tǒng)動(dòng)態(tài)特性。通過對(duì)仿真模型的驗(yàn)證以及電站動(dòng)態(tài)特性分析表明:仿真模型能夠正確反映機(jī)組正常運(yùn)行狀態(tài)下的運(yùn)行過程以及機(jī)組熱力系統(tǒng)動(dòng)態(tài)特性,主要熱力參數(shù)的變化與機(jī)組運(yùn)行機(jī)理和熱工調(diào)節(jié)過程相符,滿足仿真實(shí)時(shí)性要求;仿真模型運(yùn)算穩(wěn)定、可靠,有良好的自穩(wěn)定性;仿真模型可用于對(duì)此類機(jī)組的實(shí)時(shí)仿真系統(tǒng)開發(fā)以及運(yùn)行特性研究,還可為機(jī)組控制系統(tǒng)的設(shè)計(jì)與分析提供良好的非線性對(duì)象模型。
[Abstract]:Compared with conventional energy, the intermittent and unstable shortcomings of renewable energy such as solar energy and wind energy make it difficult to connect to power grid. At the same time, there are peak and low power consumption in power grid. If the power consumption is adjusted by some regulating system, it will inevitably lead to partial load generation of boiler and turbine, resulting in low efficiency. Energy storage system can make up for the intermittence and instability of renewable energy generation. Energy storage system can be used to generate electricity at peak and storage at low point. Because of the factors such as unit capacity, energy density, system efficiency, output power, energy storage period, charge and discharge time, operation cost, environmental friendliness, compressed air energy storage power station has been widely used commercially. Based on the research results of compressed air energy storage at home and abroad, this paper takes TICC-500 and 1.5 MW demonstration power station of Chinese Academy of Sciences as the research object, according to energy, mass conservation equation, fluid mechanics, heat transfer, engineering thermodynamics and other related professional knowledge. Referring to the relevant documents and combining the working fluid work and flow factors in various links, the modular modeling method is used to study the compressor, heat exchanger, header, gas storage tank in the advanced adiabatic compressed air energy storage system. According to the developed mathematical model, the corresponding algorithm is compiled by C program, and the corresponding simulation module is established on the platform of STAR-90 simulation support system. Combined with the simulation module of equipments / components (such as air boundary condition, pump, pressure node, valve, etc.), the real-time dynamic simulation model of thermal power system of advanced adiabatic compressed air storage power station with certain generality is developed. The dynamic characteristics of the thermal power system of this type of power station are simulated based on the model. The static accuracy and dynamic characteristics of the simulation model are verified by using the relevant data and curves, and the dynamic characteristics of the thermal power system of the advanced adiabatic compressed air storage power station are studied based on the simulation model. Through the verification of the simulation model and the analysis of the dynamic characteristics of the power station, it is shown that the simulation model can correctly reflect the operation process of the unit under normal operation state and the dynamic characteristics of the unit thermal system. The variation of the main thermodynamic parameters is consistent with the operation mechanism of the unit and the process of thermal regulation, which meets the real-time requirements of the simulation, and the simulation model is stable, reliable and self-stable. The simulation model can be used to develop the real-time simulation system and study the operation characteristics of this kind of unit. It can also provide a good nonlinear object model for the design and analysis of the unit control system.
【學(xué)位授予單位】：華北電力大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TK02;TM62

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本文編號(hào)：2029588