本文選題：功率因數(shù)校正　切入點(diǎn)：三電平逆變器　出處：《安徽理工大學(xué)》2013年碩士論文　論文類型：學(xué)位論文

【摘要】：UPS(不間斷電源)在通信、金融、工業(yè)控制等領(lǐng)域應(yīng)用廣泛。而目前國內(nèi)對(duì)于數(shù)字化在線式UPS的研究,尤其是大功率的設(shè)備相對(duì)國外先進(jìn)水平還比較薄弱。本文提出一種基于嵌入式實(shí)時(shí)操作系統(tǒng)的全數(shù)字在線式單進(jìn)單出的交流不間斷電源的設(shè)計(jì)方案,并制作樣機(jī)調(diào)試完畢。 本文提出一種結(jié)構(gòu)簡單的PFC(Power Factor Correction,功率因數(shù)校正電路)的拓?fù)浣Y(jié)構(gòu),直流側(cè)采用雙BUS(直流母線),但是正、負(fù)BUS共用一個(gè)儲(chǔ)能電感,相比較于傳統(tǒng)的雙BUS電路拓?fù)涔?jié)省了一個(gè)電感。PFC部分,從PFC電路的硬件選型到建立PFC電路的交流小信號(hào)模型到基于重復(fù)控制PID控制、前饋控制等控制理論的控制系統(tǒng)架構(gòu)的建立,最后在DSP56F8356(數(shù)字信號(hào)處理器)上實(shí)現(xiàn)了該控制算法,并在整機(jī)上調(diào)試成功。逆變器部分,采用二極管鉗位的單相三電平逆變,有效的降低了IGBT的耐壓要求,而控制上只要設(shè)置合適的開關(guān)函數(shù)就能轉(zhuǎn)化成與單相半橋逆變電路的一樣。本文設(shè)計(jì)了單相三電平逆變電路的輸出濾波器、建立了單相三電平逆變器的基于狀態(tài)空間平均法的數(shù)學(xué)模型,提出了基于重復(fù)控制、比例控制、前饋控制的控制器,并在DSP56F8356上實(shí)現(xiàn)了該控制算法,最終在樣機(jī)上調(diào)試完畢。在控制電路方面設(shè)計(jì)了電壓、電流的采樣電路,IGBT的驅(qū)動(dòng)電路、靜態(tài)開關(guān)的驅(qū)動(dòng)電路、DSP56F8356最小系統(tǒng)的設(shè)計(jì)、介紹了DSP56F8356的AD模塊、PWM模塊等與硬件相關(guān)的片上資源,并調(diào)試好。 鑒于傳統(tǒng)的前后臺(tái)系統(tǒng)的一些制約,本文提出了基于嵌入式實(shí)時(shí)操作系統(tǒng)的軟件架構(gòu)。文中詳細(xì)介紹了如何將嵌入式實(shí)時(shí)操作系統(tǒng)移植到DSP56F8356上,如何劃分UPS控制軟件的任務(wù),UPS系統(tǒng)軟件的主要時(shí)序等內(nèi)容。
[Abstract]:Ups (Uninterruptible Power supply) is widely used in communication, finance, industrial control and other fields. Especially, the high power equipment is relatively weak compared with the advanced level of foreign countries. This paper presents a design scheme of all digital on line single input and single output AC uninterruptible power supply based on embedded real time operating system, and makes a prototype for debugging. In this paper, a simple topology of PFC(Power Factor Correction (PFC) is proposed. The DC side uses double bus (DC bus), but positive and negative BUS share a single energy storage inductor. Compared with the traditional double BUS circuit topology, it saves an inductor. PFC part, from the hardware selection of PFC circuit to the establishment of AC small-signal model of PFC circuit to PID control based on repetitive control. Finally, the control algorithm is implemented on DSP 56F8356 (Digital signal processor), and successfully debugged on the whole machine. In the inverter, single-phase three-level inverter with diode clamps is used. The voltage requirement of IGBT is reduced effectively, and the output filter of single-phase three-level inverter circuit is designed in this paper, which can be converted to the same as that of single-phase half-bridge inverter circuit by setting appropriate switching function. The mathematical model of single-phase three-level inverter based on state space averaging method is established, and the controller based on repetitive control, proportional control and feedforward control is proposed, and the control algorithm is implemented on DSP56F8356. Finally, the debugging is finished on the prototype. In the aspect of control circuit, the driving circuit of IGBT is designed for the sampling circuit of voltage and current, and the driving circuit of static switch is designed for DSP56F8356 minimum system. This paper introduces the AD module and PWM module of DSP56F8356 and other related on-chip resources, and debugs them well. In view of the limitations of the traditional front and background system, this paper proposes a software architecture based on embedded real-time operating system, and introduces in detail how to transplant the embedded real-time operating system to DSP56F8356. How to divide the task of UPS control software and the main time sequence of UPS system software etc.
【學(xué)位授予單位】：安徽理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TP368.12;TM464

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 張震;柴文野;潘登;任沖;;基于PID和重復(fù)控制的UPS逆變器的研究[J];電測(cè)與儀表;2011年05期

2 高軍,黎輝,楊旭,王兆安;基于PID控制和重復(fù)控制的正弦波逆變電源研究[J];電工電能新技術(shù);2002年01期

3 彭望成;熊芝耀;房華;鄧應(yīng)偉;姚文峰;;基于DSP的全數(shù)字化在線式UPS的研究[J];電氣應(yīng)用;2006年01期

4 游志青;陳宏;胡育文;;UPS逆變器的重復(fù)控制器參數(shù)的仿真分析[J];電源技術(shù)應(yīng)用;2002年04期

5 謝力華,蘇彥民;正弦波逆變電源的數(shù)字控制技術(shù)[J];電力電子技術(shù);2001年06期

6 朱曉琴;;基于TMS320F240的UPS數(shù)字化控制設(shè)計(jì)[J];電力電子技術(shù);2005年06期

7 岳云濤;李英姿;韓永萍;;一種新型高功率因數(shù)軟開關(guān)電源[J];電力自動(dòng)化設(shè)備;2008年05期

8 康洪波;于江利;秦景;張曄;;UPS的工作原理和發(fā)展趨勢(shì)分析[J];電源技術(shù);2009年07期

9 朱曉玲;張代潤;;基于重復(fù)控制與極點(diǎn)配置的SPWM逆變電源研究[J];電源世界;2009年07期

10 王雪丹;任繼偉;張曉曦;;復(fù)合控制算法在逆變器中的應(yīng)用[J];哈爾濱理工大學(xué)學(xué)報(bào);2009年04期

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