【摘要】：隨著“工業(yè)4.0”概念的提出,我國(guó)積極參與并加快發(fā)展工業(yè)科學(xué)技術(shù),感應(yīng)加熱技術(shù)在工業(yè)冶煉行業(yè)中得到廣泛應(yīng)用。當(dāng)前傳統(tǒng)感應(yīng)加熱控制器多采用模擬器件結(jié)合經(jīng)典控制策略的系統(tǒng)模式,該模式在控制過(guò)程及輸出效果上,存在著諸多不足之處。因此,設(shè)計(jì)一款數(shù)字化、智能化的控制器,對(duì)提高感應(yīng)加熱控制器的控制效果及工作效率是具有價(jià)值的。針對(duì)傳統(tǒng)感應(yīng)加熱控制器存在的溫度漂移、電路復(fù)雜、穩(wěn)定性差等缺陷,以及加熱過(guò)程中普通控制方法,無(wú)法有效改善的溫度非線性時(shí)變問(wèn)題,本文以90kW/1kHz中頻感應(yīng)加熱半橋串聯(lián)主拓?fù)潆娐窞檠芯繉?duì)象,并對(duì)其工作特性進(jìn)行分析,提出了一種基于FPGA的復(fù)合調(diào)功算法,并在Simulink中進(jìn)行了可行性驗(yàn)證及樣機(jī)的設(shè)計(jì)與測(cè)試。具體工作如下:首先,分析了串聯(lián)半橋主拓?fù)潆娐返墓ぷ髂Ｊ郊柏?fù)載特性,提出了一種脈沖寬度與脈沖頻率結(jié)合的復(fù)合調(diào)功策略;其次在Simulink環(huán)境下搭建了感應(yīng)加熱系統(tǒng)模型,采用鎖相環(huán)與模糊-P[多模態(tài)控制算法實(shí)現(xiàn)感應(yīng)加熱調(diào)功策略,并對(duì)比了傳統(tǒng)PI算法和模糊-PI多模態(tài)算法在本系統(tǒng)中的控制效果。仿真結(jié)果表明,基于模糊-PI多模態(tài)算法的復(fù)合調(diào)功策略是可行的,且在穩(wěn)、快、準(zhǔn)以及抗干擾方面具有一定的優(yōu)越性;在此基礎(chǔ)上,計(jì)算了主回路各器件的參數(shù),并設(shè)計(jì)了以FPGA為核心的觸發(fā)控制系統(tǒng),主要設(shè)計(jì)與測(cè)試的模塊有:FPGA最小系統(tǒng)、反饋信號(hào)A/D采集模塊、它激轉(zhuǎn)自激啟動(dòng)模塊、反饋信號(hào)調(diào)理模塊、隔離驅(qū)動(dòng)及保護(hù)模塊;最后在軟件上采用純邏輯器件實(shí)現(xiàn)了鎖相環(huán)的信號(hào)跟蹤功能。搭建了Qsys系統(tǒng)并利用N1OS II實(shí)現(xiàn)功率閉環(huán)調(diào)節(jié)。基于上述軟硬件設(shè)計(jì)搭建了實(shí)驗(yàn)樣機(jī),完成了對(duì)中頻感應(yīng)加熱串聯(lián)半橋智能控制器的調(diào)節(jié)與測(cè)試。實(shí)驗(yàn)結(jié)果表明,利用復(fù)合調(diào)功策略的半橋串聯(lián)拓?fù)潆娐?實(shí)現(xiàn)了頻率的跟蹤與恒功率輸出控制,提高了功率因數(shù),減少了開關(guān)管的功率損耗,使系統(tǒng)具有更強(qiáng)的魯棒性和適應(yīng)能力,對(duì)中頻感應(yīng)加熱冶煉行業(yè)的發(fā)展具有一定的參考意義。
[Abstract]:With the concept of "Industrial 4.0" put forward, our country actively participates in and accelerates the development of industrial science and technology, induction heating technology has been widely used in industrial smelting industry. At present, the traditional induction heating controller mostly adopts the system mode of analog device combined with classical control strategy. There are many shortcomings in the control process and output effect of this mode. Therefore, it is valuable to design a digital and intelligent controller to improve the control effect and working efficiency of induction heating controller. Aiming at the defects of traditional induction heating controller, such as temperature drift, complex circuit, poor stability and so on, as well as the non-linear time-varying problem of temperature which can not be improved effectively by ordinary control methods in heating process. In this paper, the 90kW/1kHz mid-frequency induction heating half-bridge series main topology circuit is studied, and its working characteristics are analyzed. A hybrid power regulation algorithm based on FPGA is proposed, and the feasibility verification and prototype design and test in Simulink are carried out. The concrete work is as follows: firstly, the working mode and load characteristics of the series half-bridge main topology circuit are analyzed, and a hybrid power regulation strategy combining pulse width and pulse frequency is proposed. Secondly, the induction heating system model is built in the environment of Simulink, and the phase-locked loop and fuzzy-P [multi-modal control algorithm] are used to realize the power regulation strategy of induction heating. The control effects of traditional PI algorithm and fuzzy-PI multimodal algorithm in this system are compared. The simulation results show that the hybrid power regulation strategy based on fuzzy-PI multi-mode algorithm is feasible and has some advantages in stability, fast, accurate and anti-jamming. On this basis, the parameters of each device in the main loop are calculated, and the trigger control system based on FPGA is designed. The main modules of design and test are: FPGA minimum system, feedback signal A / D acquisition module, which activates self-excited start-up module. Feedback signal conditioning module, isolation drive and protection module; Finally, the signal tracking function of PLL is realized by using pure logic device in the software. The Qsys system is built and the power closed loop regulation is realized by using N1OS II. Based on the above-mentioned hardware and software design, an experimental prototype is built, and the regulation and test of the intelligent controller for mid-frequency induction heating series half-bridge is completed. The experimental results show that the frequency tracking and constant power output control are realized by using the half-bridge series topology circuit based on the compound power regulation strategy, the power factor is improved and the power loss of the switch tube is reduced. The system has stronger robustness and adaptability, and has certain reference significance for the development of intermediate frequency induction heating smelting industry.
【學(xué)位授予單位】：西安科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TP273

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 倪云峰;王振;;基于FPGA的感應(yīng)加熱逆變控制器設(shè)計(jì)[J];電力電子技術(shù);2016年09期

2 張強(qiáng);王龍;周穎;趙慧敏;;感應(yīng)加熱電源功率的復(fù)合控制[J];自動(dòng)化與儀表;2016年01期

3 尤波;李松洋;鄭帥;;基于FPGA的自動(dòng)變�？刂聘袘�(yīng)加熱電源全數(shù)字鎖相環(huán)研究[J];自動(dòng)化技術(shù)與應(yīng)用;2014年11期

4 呂淼;李金剛;;感應(yīng)加熱電源Fuzzy和PI分段復(fù)合控制方法[J];電氣傳動(dòng);2014年03期

5 胡聰權(quán);胡佳璽;耿浩杰;馬良;;大功率高頻并聯(lián)諧振逆變器拓?fù)浣Y(jié)構(gòu)研究[J];電力電子技術(shù);2013年10期

6 劉超;李健宇;厲呈臣;梁玉民;;基于FPGA的均勻PDM感應(yīng)加熱電源的研究[J];電力電子技術(shù);2013年04期

7 孫起良;張志宏;;感應(yīng)加熱電源的容性移相PWM調(diào)功[J];安徽理工大學(xué)學(xué)報(bào)(自然科學(xué)版);2013年01期

8 顧劍鋒;潘健生;;智能熱處理及其發(fā)展前景[J];金屬熱處理;2013年02期

9 王婭琦;周偉松;趙前哲;;同步雙頻感應(yīng)加熱電源的研究[J];電力電子技術(shù);2013年01期

10 劉暢;黃正興;陳毅;;雙閉環(huán)控制感應(yīng)加熱電源設(shè)計(jì)與仿真分析[J];電子器件;2012年06期

相關(guān)碩士學(xué)位論文 前10條

1 臧甲杰;基于PDM高頻感應(yīng)加熱電源的研究與設(shè)計(jì)[D];鄭州大學(xué);2015年

2 馬良;基于DSP的感應(yīng)加熱電源逆變控制器的研究與實(shí)現(xiàn)[D];河北大學(xué);2014年

3 張旭;基于IGBT的串聯(lián)諧振式感應(yīng)加熱電源的研究[D];北京交通大學(xué);2014年

4 路智斌;感應(yīng)加熱電源的PDM調(diào)功方法研究[D];華北電力大學(xué);2014年

5 楊蕊;基于FPGA的小功率感應(yīng)加熱逆變電源的研究[D];天津大學(xué);2014年

6 呂默影;超高頻感應(yīng)加熱電源鎖相控制策略[D];浙江大學(xué);2013年

7 齊幸坤;IGBT半橋串聯(lián)諧振逆變器的研究[D];華北電力大學(xué);2012年

8 曹育杰;基于DSP的超音頻感應(yīng)加熱電源研究與設(shè)計(jì)[D];武漢理工大學(xué);2011年

9 梅業(yè)偉;30kVA中頻逆變電源研制[D];北京交通大學(xué);2009年

10 黃瑾瑜;基于移相控制的感應(yīng)加熱電源的研究[D];江南大學(xué);2008年

，

本文編號(hào)：2454729