發(fā)布時間：2018-02-22 08:46

  本文關(guān)鍵詞： 風(fēng)力發(fā)電 混雜控制 自動機理論 混雜自動機 鏈系統(tǒng) 預(yù)估控制　出處：《鄭州大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著人類社會的進步和經(jīng)濟的發(fā)展，能源和環(huán)境問題已經(jīng)成為世界各國最為關(guān)心的問題之一。風(fēng)力發(fā)電以其環(huán)保無污染、發(fā)展前景大、可開發(fā)性強和風(fēng)能儲存量大等優(yōu)點，備受各國的高度重視，風(fēng)力發(fā)電的控制技術(shù)也因此得到了快速的發(fā)展。由于風(fēng)力發(fā)電系統(tǒng)涉及空氣動力學(xué)、自動控制理論、機械傳動理論、電機學(xué)等多門學(xué)科，且因風(fēng)能隨機性、突變性等多種不穩(wěn)定因素的存在，風(fēng)力發(fā)電系統(tǒng)的控制問題極其復(fù)雜，是一個復(fù)雜的多變量非線性不確定系統(tǒng)。尤其是風(fēng)力發(fā)電系統(tǒng)的建模問題，針對這樣的復(fù)雜非線性系統(tǒng)存在有多種不同的建模方法，合理的構(gòu)建系統(tǒng)模型對系統(tǒng)控制的研究具有很大的意義。 本課題的主要內(nèi)容是混雜控制技術(shù)在風(fēng)力發(fā)電系統(tǒng)中的應(yīng)用研究。由于傳統(tǒng)的風(fēng)電控制技術(shù)大多數(shù)都是將風(fēng)力發(fā)電系統(tǒng)構(gòu)建成一個單一的離散控制系統(tǒng)模型或者連續(xù)控制系統(tǒng)模型，沒有更好的描述出風(fēng)電系統(tǒng)的真實特性。本課題就是通過對實際風(fēng)力發(fā)電系統(tǒng)的結(jié)構(gòu)和運行特性的分析，證明了風(fēng)力發(fā)電系統(tǒng)具有明顯的混雜特性，從而進一步深入研究了混雜控制技術(shù)在風(fēng)力發(fā)電系統(tǒng)中的應(yīng)用。本課題通過對混雜系統(tǒng)的結(jié)構(gòu)和特性研究，分析了風(fēng)力發(fā)電系統(tǒng)的混雜特性，并介紹了混雜系統(tǒng)的常用控制方法。對風(fēng)力發(fā)電系統(tǒng)的物理結(jié)構(gòu)進行了研究，并分析了系統(tǒng)中重要組成部分的物理特性，包括有自然風(fēng)特性、風(fēng)力機的機械特性、傳動系統(tǒng)物理結(jié)構(gòu)模型以及發(fā)電機模型。然后是對自動機理論和混雜自動機模型進行了介紹與研究，并在此基礎(chǔ)上研究了風(fēng)力發(fā)電系統(tǒng)的混雜自動機模型。為了能夠更好的體現(xiàn)混雜控制技術(shù)的優(yōu)越性，本課題采用鏈系統(tǒng)理論方法設(shè)計了預(yù)估控制器。在深入研究鏈系統(tǒng)理論及其預(yù)估控制算法的基礎(chǔ)上，設(shè)計出適合本課題所建風(fēng)力發(fā)電系統(tǒng)模型的控制規(guī)律。 最后，，在對系統(tǒng)控制結(jié)構(gòu)模型和控制算法分析后，設(shè)計出Matlab/Simulink仿真模型。通過計算機仿真得出了預(yù)估控制器在風(fēng)力發(fā)電系統(tǒng)中的控制效果，結(jié)果表明，混雜控制技術(shù)在風(fēng)力發(fā)電系統(tǒng)中得到了理想的應(yīng)用，在理論發(fā)展上具有一定的意義價值。本課題所研究的混雜控制技術(shù)在風(fēng)力發(fā)電領(lǐng)域是一種較新的應(yīng)用，對風(fēng)力發(fā)電技術(shù)的發(fā)展具有一定的意義。
[Abstract]:With the progress of human society and the development of economy, energy and environment problems have become one of the most concerned problems in the world. The control technology of wind power generation has been developed rapidly. Since wind power system involves many subjects, such as aerodynamics, automatic control theory, mechanical transmission theory, motor science and so on, Due to the existence of wind energy randomness, mutation and other unstable factors, the control problem of wind power system is extremely complex, and it is a complex multivariable nonlinear uncertain system, especially the modeling problem of wind power system. There are many different modeling methods for such a complex nonlinear system, and it is of great significance to construct the system model reasonably for the study of system control. The main content of this paper is the application research of hybrid control technology in wind power system. Because most of the traditional wind power control technology is to construct a single discrete control system model of wind power system. Continuous control system model, There is no better description of the true characteristics of the wind power system. This subject is based on the analysis of the structure and operation characteristics of the actual wind power system, which proves that the wind power system has obvious hybrid characteristics. Therefore, the application of hybrid control technology in wind power system is further studied. By studying the structure and characteristics of hybrid system, the hybrid characteristics of wind power system are analyzed. The common control methods of hybrid system are introduced. The physical structure of wind power system is studied, and the physical characteristics of important components of the system, including natural wind characteristics, mechanical characteristics of wind turbine, are analyzed. The physical structure model and generator model of transmission system are introduced, and the automaton theory and hybrid automaton model are introduced and studied. On this basis, the hybrid automata model of wind power system is studied. In this paper, the predictive controller is designed by using the chain system theory. On the basis of deeply studying the chain system theory and its predictive control algorithm, the control law suitable for the wind power system model is designed. Finally, after analyzing the control structure model and control algorithm of the system, the Matlab/Simulink simulation model is designed, and the control effect of the predictive controller in the wind power system is obtained by computer simulation. The results show that, Hybrid control technology has been applied in wind power system and has a certain significance in theory development. The hybrid control technology studied in this paper is a new application in the field of wind power generation. It has certain significance to the development of wind power technology.
【學(xué)位授予單位】：鄭州大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TM614;TP273

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