本文選題：動(dòng)態(tài)矩陣控制算法 + 超臨界機(jī)組　； 參考：《華北電力大學(xué)》2017年碩士論文

【摘要】：隨著經(jīng)濟(jì)社會(huì)的發(fā)展,工業(yè)和生活用電量不斷增長(zhǎng)。發(fā)電企業(yè)在保證發(fā)電質(zhì)量和規(guī)模方面承擔(dān)著至關(guān)重要的責(zé)任。在當(dāng)前和未來(lái)很長(zhǎng)的一段時(shí)間內(nèi),火力發(fā)電仍然是我國(guó)發(fā)電領(lǐng)域占主導(dǎo)地位的發(fā)電形式。超臨界機(jī)組是近十幾年來(lái),我國(guó)著力發(fā)展建設(shè)的機(jī)組形式。超臨界機(jī)組發(fā)電效率高、環(huán)境污染低、經(jīng)濟(jì)效益好,相應(yīng)的其控制策略也更為復(fù)雜。它采用直流爐形式,給水系統(tǒng)是其核心控制系統(tǒng)之一。給水品質(zhì)對(duì)負(fù)荷和主汽溫度都有著顯著的影響。優(yōu)化超臨界機(jī)組給水控制策略,應(yīng)用新型控制算法,是近年來(lái)超臨界機(jī)組控制優(yōu)化的研究熱點(diǎn)之一。本文在分析超臨界機(jī)組給水控制系統(tǒng)的結(jié)構(gòu)和特性基礎(chǔ)上,合理選擇控制對(duì)象,應(yīng)用動(dòng)態(tài)矩陣控制算法,改進(jìn)控制策略,實(shí)現(xiàn)了基于中間點(diǎn)溫度校正的給水主控的優(yōu)化。動(dòng)態(tài)矩陣控制算法是預(yù)測(cè)控制的一種,近年來(lái)以其優(yōu)秀的控制特性已經(jīng)廣泛應(yīng)用于石油化工等工業(yè)場(chǎng)合,具有良好的動(dòng)態(tài)性能和魯棒性。本文研究借助某超臨界機(jī)組全工況仿真系統(tǒng)研究平臺(tái),通過(guò)仿真平臺(tái)獲取運(yùn)行數(shù)據(jù),使用Matlab工具箱辨識(shí)出典型工況下傳遞函數(shù)模型,提出用于動(dòng)態(tài)矩陣控制算法使用的預(yù)測(cè)模型一種自適應(yīng)改進(jìn)辦法。用Matlab軟件編寫了動(dòng)態(tài)矩陣控制算法程序,先在Matlab環(huán)境下仿真檢驗(yàn)了控制效果,與傳統(tǒng)PID控制效果進(jìn)行了仿真對(duì)比,后編寫通信程序,實(shí)現(xiàn)Matlab與PAS-300M仿真機(jī)的通信。在仿真機(jī)平臺(tái)上應(yīng)用新型控制算法,驗(yàn)證了給水控制品質(zhì)得到改善。
[Abstract]:With the development of economy and society, the electricity consumption of industry and living is increasing. Power generation enterprises are responsible for ensuring the quality and scale of power generation. Thermal power generation is still the dominant power generation form in the field of power generation in China for a long time now and in the future. Supercritical unit is a new type of unit in China in the past ten years. The power generation efficiency of supercritical unit is high, the environmental pollution is low, the economic benefit is good, and the corresponding control strategy is more complicated. It adopts the form of DC furnace, feed water system is one of its core control systems. The quality of feed water has a significant effect on load and main steam temperature. In recent years, the optimization of feed water control strategy for supercritical units and the application of new control algorithms have become one of the research hotspots in the control optimization of supercritical units. On the basis of analyzing the structure and characteristic of the feed water control system of supercritical unit, the control object is reasonably selected, and the dynamic matrix control algorithm is applied to improve the control strategy, which realizes the optimization of the main control of feed water based on the temperature correction of the intermediate point. Dynamic matrix control (DMC) algorithm is a kind of predictive control. In recent years, it has been widely used in petrochemical industry due to its excellent control characteristics, and has good dynamic performance and robustness. In this paper, with the help of the research platform of the full-condition simulation system of a supercritical unit, the operation data are obtained through the simulation platform, and the transfer function model under typical operating conditions is identified by using the Matlab toolbox. This paper presents an adaptive improvement method for predictive model used in dynamic matrix control algorithm. The dynamic matrix control algorithm program is written with Matlab software. The control effect is tested by simulation under Matlab environment, and compared with the traditional PID control effect. Then the communication program is written to realize the communication between Matlab and PAS-300M simulator. A new control algorithm is applied on the simulator platform, which verifies the improvement of the quality of the feed water control.
【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)】：TM621

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