本文選題：低諧波 + PWM功率驅(qū)動(dòng)�。� 參考：《電子科技大學(xué)》2014年碩士論文

【摘要】：高性能電機(jī)是高精度運(yùn)動(dòng)工作臺(tái)實(shí)現(xiàn)精密運(yùn)動(dòng)的核心部件,而其電機(jī)驅(qū)動(dòng)器在電機(jī)性能的實(shí)現(xiàn)中占據(jù)重要地位。對(duì)于電機(jī)驅(qū)動(dòng)器而言,相對(duì)于外環(huán)速度與位置控制,首先值得關(guān)注的是其驅(qū)動(dòng)電流性能,包括電流噪聲與精度、電流的快速響應(yīng)能力、最大電流以及輸出電流與指令電流之間的線性度等。其中電流噪聲與精度、電流響應(yīng)速度等性能取決于驅(qū)動(dòng)器的功率驅(qū)動(dòng)單元的工作電壓、驅(qū)動(dòng)類型和驅(qū)動(dòng)拓?fù)�。論文針�?duì)具有高壓、大電流能力的PWM驅(qū)動(dòng)器類型的驅(qū)動(dòng)拓?fù)溟_展研究,主要研究了PWM驅(qū)動(dòng)器的功率拓?fù)浣Y(jié)構(gòu)設(shè)計(jì)、PWM算法,抑制輸出電流諧波,提高等效開關(guān)頻率,提高驅(qū)動(dòng)器在頻率帶寬和電流噪聲等方面的性能。論文主要工作內(nèi)容如下:1.分析了本課題的背景以及深刻的研究意義,介紹了當(dāng)前的PWM驅(qū)動(dòng)器研究現(xiàn)狀以及相關(guān)技術(shù)發(fā)展。2.討論了PWM型驅(qū)動(dòng)器基本逆變電路,利用傅里葉級(jí)數(shù)展開分析了逆變電路的諧波產(chǎn)生的原因以及死區(qū)對(duì)諧波的影響,然后就如何減少諧波總量、提高等效開關(guān)頻率具體分析了交錯(cuò)并聯(lián)拓?fù)浣Y(jié)構(gòu)以及相移載波PWM算法。3.提出了一種電流驅(qū)動(dòng)PWM功率拓?fù)湓O(shè)計(jì)方案,利用MATLAB對(duì)該設(shè)計(jì)進(jìn)行分析,改進(jìn)了現(xiàn)有的載波相移PWM算法,進(jìn)一步減少輸出諧波總量,提高等效開關(guān)頻率。在此基礎(chǔ)上,引入了LRC濾波電路,針對(duì)諧波中的主要分量頻率,設(shè)計(jì)低通濾波器參數(shù),抑制驅(qū)動(dòng)器輸出諧波。4.基于所提功率拓?fù)浣Y(jié)構(gòu),對(duì)PWM驅(qū)動(dòng)器進(jìn)行了詳細(xì)設(shè)計(jì),包括DSP、FPGA和IPM等核心器件硬件,詳述了各部分電路原理設(shè)計(jì),概要介紹了驅(qū)動(dòng)器的DSP程序、FPGA程序以及上位機(jī)調(diào)試軟件的設(shè)計(jì)。5.以PWM驅(qū)動(dòng)器為核心構(gòu)建了伺服運(yùn)動(dòng)平臺(tái),基于該平臺(tái)進(jìn)行了電流開環(huán)實(shí)驗(yàn),實(shí)驗(yàn)結(jié)果分析驗(yàn)證了理論分析與電路設(shè)計(jì)的正確性。
[Abstract]:High performance motor is the core component of high precision motion worktable to realize precision motion, and its motor driver plays an important role in the realization of motor performance. For motor drivers, relative to outer ring speed and position control, it is the first to pay attention to its driving current performance, including current noise and precision, rapid current. The response capability, the maximum current and the linearity between the output current and the instruction current. The performance of the current noise and precision, the current response speed and so on depends on the working voltage, driving type and driving topology of the power drive unit of the drive. This paper is based on the driving topology of the PWM driver type with high voltage and high current capacity. It mainly studies the power topology structure design of PWM driver, PWM algorithm, restraining the output current harmonics, improving the equivalent switching frequency, improving the performance of the driver in frequency bandwidth and current noise. The main contents of this paper are as follows: 1. the background of this topic and the profound research significance are analyzed, and the current PWM is introduced. The current status of drive research and the development of related technology.2. discussed the basic inverter circuit of PWM type driver, analyzed the cause of the harmonic generation of the inverter circuit by Fu Liye series expansion and the influence of dead zone on the harmonic. Then it analyzed the staggered parallel topology structure and analyzed the interlaced parallel topology structure on how to reduce the total harmonic total and improve the equivalent switching frequency. The phase shift carrier PWM algorithm.3. proposed a current driven PWM power topology design scheme. Using MATLAB to analyze the design, the existing carrier phase shift PWM algorithm was improved, and the total output harmonic total and the equivalent switching frequency were further reduced. Based on this, the LRC filter circuit was introduced to design the main component frequency in the harmonic. The parameters of the low pass filter and the suppression of the drive output harmonic.4. are based on the topology of the proposed power. The PWM driver is designed in detail, including the hardware of the core devices such as DSP, FPGA and IPM. The circuit principle of each part is detailed. The DSP program of the driver, the FPGA program and the design.5. of the debug software of the host computer are introduced to the PWM driver. The servo platform is built at the core, and the current opening experiment is carried out based on the platform. The results of the experiment verify the correctness of the theoretical analysis and the circuit design.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM303

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 侯立軍,蘇彥民,陳林;一種新穎的用于六相感應(yīng)電機(jī)調(diào)速系統(tǒng)的空間矢量PWM方法[J];電工電能新技術(shù);2004年01期

，

本文編號(hào)：2027164