本文選題：Simulink　切入點(diǎn)：PWM技術(shù)　出處：《青島科技大學(xué)》2016年碩士論文

【摘要】：隨著電力電子技術(shù)快速發(fā)展,電力電子設(shè)備的應(yīng)用范圍也越來(lái)越廣。脈寬調(diào)制技術(shù)作為電力電子技術(shù)中非常重要的一部分,因而也變得越來(lái)越重要,其不論是控制方案的種類,還是控制系統(tǒng)的整體性能都在不斷提高。采用傳統(tǒng)的DSP來(lái)實(shí)現(xiàn)PWM技術(shù),其電路結(jié)構(gòu)十分復(fù)雜。而采用FPGA器件產(chǎn)生PWM,不僅具有高精度和響應(yīng)速度快的優(yōu)點(diǎn),還可以使產(chǎn)生的PWM周期變化控制在微秒到秒的范圍內(nèi),這是DSP難以實(shí)現(xiàn)的。由于FPGA可將整個(gè)系統(tǒng)設(shè)計(jì)于同一芯片中,實(shí)現(xiàn)片上系統(tǒng)SOC,從而大大縮小其體積。因此采用高集成度、高速的現(xiàn)場(chǎng)可編程門陣列FPGA為實(shí)現(xiàn)高速、高精度PWM提供了保證。論文以此為背景開(kāi)展的研究工作如下:第一,針對(duì)現(xiàn)代電力電子控制技術(shù)的發(fā)展?fàn)顩r和需求,深入研究了幾種常用的PWM控制技術(shù)數(shù)學(xué)模型;利用仿真軟件MATLAB對(duì)各種控制技術(shù)的數(shù)學(xué)模型進(jìn)行系統(tǒng)仿真建模,并利用System Generator工具完成數(shù)學(xué)模型到SG模型的轉(zhuǎn)化。第二,研究了基本的PWM控制技術(shù)的主要環(huán)節(jié)建模方法,在SG模型的仿真環(huán)境中完成具體參數(shù)的設(shè)置,利用SG模塊得到各種PWM控制技術(shù)的Verilog語(yǔ)言描述,在此基礎(chǔ)上進(jìn)行編譯、綜合和仿真測(cè)試后完成各種調(diào)制算法的FPGA硬件實(shí)現(xiàn)。第三,脈寬調(diào)制技術(shù)FPGA實(shí)現(xiàn)的關(guān)鍵在于控制算法的Verilog代碼轉(zhuǎn)化,本次研究利用Xilink的System Generator工具完成控制算法向Verilog代碼的轉(zhuǎn)換,完美的解決了這一難點(diǎn),省去了復(fù)雜的人工編程,有效的縮短了開(kāi)發(fā)周期。通過(guò)Simulink和System Generator仿真波形的比較分析,所得的輸出脈沖完全一致,驗(yàn)證了本次研究的正確性。
[Abstract]:With the rapid development of power electronics technology, the application of power electronic equipment is becoming wider and wider. As a very important part of power electronics technology, pulse width modulation technology has become more and more important, regardless of the type of control scheme. The whole performance of the control system is improving continuously. The circuit structure of using traditional DSP to realize PWM technology is very complicated. The FPGA device not only has the advantages of high precision and fast response, but also has the advantages of high precision and high response speed. The PWM cycle can be controlled in the range of microsecond to second, which is difficult for DSP to realize. Because FPGA can design the whole system in the same chip and realize the system on a chip, the volume of the system can be greatly reduced. Therefore, the high integration level is adopted. The high speed field programmable gate array (FPGA) provides the guarantee for realizing high speed and high precision PWM. The research work based on this background is as follows: first, aiming at the development and demand of modern power electronic control technology, In this paper, several commonly used mathematical models of PWM control technology are deeply studied, and the mathematical models of various control technologies are simulated and modeled by simulation software MATLAB, and the transformation from mathematical model to SG model is completed by using System Generator tool. The main link modeling method of basic PWM control technology is studied. The specific parameters are set up in the simulation environment of SG model. The Verilog language description of various PWM control technologies is obtained by using SG module and compiled on this basis. After synthesis and simulation test, the FPGA hardware implementation of various modulation algorithms is completed. Thirdly, the key of FPGA realization of pulse width modulation technology lies in the Verilog code transformation of the control algorithm. This study uses the System Generator tool of Xilink to complete the conversion of the control algorithm to Verilog code. This problem is solved perfectly, the complicated manual programming is eliminated, and the development cycle is shortened effectively. By comparing and analyzing the simulation waveforms of Simulink and System Generator, the output pulse is completely consistent, which verifies the correctness of this research.
【學(xué)位授予單位】：青島科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：TN787.2

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