Zeta斬波電路中的復(fù)雜行為研究
本文選題:Zeta斬波電路 + 非線性; 參考:《蘭州理工大學(xué)》2017年碩士論文
【摘要】:現(xiàn)代社會中,電力電子電路在工農(nóng)業(yè)及軍事領(lǐng)域等幾乎所有領(lǐng)域被廣泛應(yīng)用。隨著半導(dǎo)體技術(shù)及電子工業(yè)技術(shù)的發(fā)展,電子電路在工作穩(wěn)定性方面有著顯著的提高;诖,電路在瞬態(tài)響應(yīng)特征方面,及其電磁兼容性方面的改進(jìn),一直是該領(lǐng)域研究工作的重點(diǎn)和難點(diǎn)。共有6種基本斬波電路:升壓斬波電路、降壓斬波電路、升降壓斬波電路、Cuk斬波電路、Sepic斬波電路和Zeta斬波電路。近年來人們深入地研究了前5種斬波電路的動力學(xué)性質(zhì)。研究表明,該類電路中有著包括各種分岔、混沌在內(nèi)的眾多不穩(wěn)定的非線性動力學(xué)行為。所以直流斬波電路中的非線性動力學(xué)性質(zhì)和穩(wěn)定性研究,對于提高該類電路的各類物理性能有著非常重要的意義。本文在Zeta斬波電路的非線性動力學(xué)行為方面進(jìn)行了相應(yīng)的探究、分析及驗(yàn)證。Zeta斬波電路是一種基本直流-直流變換電路,能夠通過調(diào)節(jié)占空比控制輸出電壓。本文介紹了電路的基本結(jié)構(gòu)、2種控制方式及2種建模方法。本文使用了狀態(tài)空間平均模型對電壓反饋控制電路進(jìn)行建模分析。在一定條件下,電路會產(chǎn)生霍普分岔。本文使用了頻閃映射模型和一種簡易方法對電流反饋控制電路進(jìn)行建模分析。在一定條件下,電路會產(chǎn)生倍周期分岔。本文使用MATLAB/Simulink對模型進(jìn)行了仿真。仿真結(jié)果與模型一致,證明了模型的有效性,驗(yàn)證了模型的準(zhǔn)確性。本文利用狀態(tài)空間平均模型對電壓反饋系數(shù)、控制占空比、負(fù)載電阻、電容參數(shù)、電感參數(shù)對電壓反饋電路行為的影響進(jìn)行了分析。利用頻閃映射模型對參考電流、時鐘周期對電流反饋電路行為的影響進(jìn)行了分析。說明了不同參數(shù)如何影響電路行為。本文研究了作用在參考電流上的干擾信號對電流反饋電路行為的影響。一定強(qiáng)度的干擾信號會使電路產(chǎn)生間歇現(xiàn)象。本文用模型和理論解釋了間歇現(xiàn)象的產(chǎn)生原理及方式。
[Abstract]:In modern society, power electronic circuits are widely used in almost all fields, such as industry, agriculture and military. With the development of semiconductor technology and electronic industry technology, the working stability of electronic circuits has been greatly improved. Based on this, the improvement of the transient response characteristics and the electromagnetic compatibility of the circuit has been the focus and difficulty of the research in this field. There are six basic chopping circuits: boost chopper circuit, step-down chopper circuit, up-down chopper circuit, Zeta chopper circuit and Sepic chopper circuit. In recent years, the dynamic properties of the first five chopping circuits have been deeply studied. It is shown that there are many unstable nonlinear dynamical behaviors in this kind of circuits, including bifurcation and chaos. Therefore, the study of nonlinear dynamic properties and stability in DC chopper circuits is very important to improve the physical properties of DC chopping circuits. In this paper, the nonlinear dynamic behavior of the Zeta chopper circuit is studied. The analysis and verification of the Zeta chopper circuit is a basic DC-DC converter, which can control the output voltage by adjusting the duty cycle. In this paper, two control methods and two modeling methods are introduced. In this paper, the state-space average model is used to model and analyze the voltage feedback control circuit. Under certain conditions, the circuit will produce Hopper bifurcation. In this paper, stroboscopic mapping model and a simple method are used to model and analyze the current feedback control circuit. Under certain conditions, the circuit will produce double period bifurcation. In this paper, MATLAB/Simulink is used to simulate the model. The simulation results are consistent with the model, which proves the validity of the model and verifies the accuracy of the model. In this paper, the effects of voltage feedback coefficient, control duty cycle, load resistance, capacitance parameters and inductance parameters on the behavior of voltage feedback circuits are analyzed by using the state space average model. The effects of reference current and clock cycle on the behavior of current feedback circuit are analyzed by stroboscopic mapping model. It shows how different parameters affect circuit behavior. The effect of interference signal acting on the reference current on the behavior of the current feedback circuit is studied in this paper. A certain intensity of interference signal will cause the circuit to produce intermittent phenomenon. In this paper, the model and theory are used to explain the production principle and mode of intermittent phenomenon.
【學(xué)位授予單位】:蘭州理工大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:TM46
【參考文獻(xiàn)】
相關(guān)期刊論文 前10條
1 鄭連清;彭一;;電壓型buck-boost變換器的混沌控制[J];物理學(xué)報;2016年22期
2 施燁;吳在軍;竇曉波;胡敏強(qiáng);;三相全橋逆變器分岔特性研究[J];中國電機(jī)工程學(xué)報;2016年19期
3 王瑤;徐利梅;李愛;廖凱;;電流型控制單電感雙輸出Buck變換器的動力學(xué)行為分析[J];中國電機(jī)工程學(xué)報;2017年02期
4 帥定新;;Zeta變換器直接電流控制[J];電力電子技術(shù);2016年04期
5 賈美美;張國山;;電壓控制型Buck變換器的混沌控制[J];電子科技大學(xué)學(xué)報;2016年02期
6 王發(fā)強(qiáng);張浩;馬西奎;李秀明;;平均電流控制型Boost功率因數(shù)校正變換器中的中頻振蕩現(xiàn)象分析[J];物理學(xué)報;2009年10期
7 王學(xué)梅;張波;丘東元;陳良剛;;DC-DC變換器的符號時間序列描述及模塊熵分析[J];物理學(xué)報;2008年10期
8 雷濤;林輝;張曉斌;;峰值電流控制的PFC Boost變換器混沌現(xiàn)象研究[J];西北工業(yè)大學(xué)學(xué)報;2008年03期
9 王詩兵;周宇飛;陳軍寧;姜學(xué)東;;高階開關(guān)功率變換器中的間歇現(xiàn)象[J];中國電機(jī)工程學(xué)報;2008年12期
10 王新生;王琪;徐殿國;;基于采樣數(shù)據(jù)模型的DC-DC變換器中分岔現(xiàn)象分析[J];系統(tǒng)仿真學(xué)報;2007年19期
相關(guān)博士學(xué)位論文 前1條
1 王詩兵;高階開關(guān)功率變換器中的非線性動力學(xué)行為及其控制研究[D];安徽大學(xué);2010年
,本文編號:1854237
本文鏈接:http://sikaile.net/kejilunwen/dianlidianqilunwen/1854237.html