基于DSP芯片的智能型高頻開關(guān)電源的設(shè)計與實現(xiàn)
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本文關(guān)鍵詞: 鉛酸蓄電池 TMS320F2809 模糊控制算法 MOSFET PID 出處:《遼寧工業(yè)大學(xué)》2014年碩士論文 論文類型:學(xué)位論文
【摘要】:論文設(shè)計的高頻開關(guān)電源是為直流屏的鉛酸蓄電池提供的充電電源,論文所研制的高頻開關(guān)電源的DC220V,頻率為100KHZ,功率為2200W,高頻開關(guān)電源主回路采用“AC-DC-AC-DC”變換的拓撲結(jié)構(gòu),主要由輸入EMI型濾波電路、輸入整流型濾波電路、高頻逆變型電路、高頻變壓器、輸出整流濾波電路等幾部分組成,其他輔助電路包括:MOSFET驅(qū)動電路、輸入端過壓、過流保護電路。 論文的控制電路部分是一個實時檢測和監(jiān)控的控制系統(tǒng),是以TMS3200F2809DSP芯片為核心,編寫軟件控制程序,以實現(xiàn)高頻開關(guān)電源智能化控制,,使得高頻開關(guān)電源可以在線設(shè)置,同時可以修改參數(shù)、顯示以及通信功能。TMS320F2809數(shù)字芯片用于產(chǎn)生PWM波形,從而驅(qū)動MOSFET開通和關(guān)斷,進而調(diào)節(jié)占空比,改變輸出電壓。傳統(tǒng)的控制系統(tǒng)運用的是PID控制調(diào)節(jié)方式,本論文運用模糊控制算法作為核心控制算法,該算法對輸出電壓進行閉環(huán)反饋控制,能夠得到比較理想的輸出電壓波形。 整篇論文以電源設(shè)計為主線,在詳細分析高頻開關(guān)電源電路原理的基礎(chǔ)上,進行系統(tǒng)的主電路設(shè)計、輔助電路設(shè)計、控制回路設(shè)計、軟件實現(xiàn),進行高頻開關(guān)電源的外形封裝設(shè)計,優(yōu)化結(jié)構(gòu),使之能夠有較好的抗震、抗壓,較合理的體積和重量,調(diào)試研制的開關(guān)電源,通過對各項參數(shù)的測試,綜合考察電源的實用性能,使之能夠滿足工業(yè)的要求。
[Abstract]:The high-frequency switching power supply designed in this paper is a charging power supply for the lead-acid battery with DC screen. The DC _ 220V of the high-frequency switching power supply developed in this paper is 100KHZ and the power is 2200W. The main circuit of high frequency switching power supply adopts the topological structure of "AC-DC-AC-DC" transform, which is mainly composed of input EMI filter circuit, input rectifier filter circuit, high frequency inverter circuit and high frequency transformer. The output rectifier filter circuit and other auxiliary circuits include the: MOSFET drive circuit, input overvoltage, over-current protection circuit. The control circuit part of the paper is a real-time detection and monitoring control system, is a TMS3200F2809DSP chip as the core, software control program. In order to realize intelligent control of high frequency switching power supply, the high frequency switching power supply can be set online and parameters can be modified at the same time. Display and communication function. TMS320F2809 digital chip is used to generate PWM waveform, thus driving MOSFET on and off, and then adjust duty cycle. Changing the output voltage. The traditional control system uses the PID control regulation method. In this paper, the fuzzy control algorithm is used as the core control algorithm, which carries on the closed-loop feedback control to the output voltage. An ideal output voltage waveform can be obtained. Based on the detailed analysis of the principle of the high frequency switching power supply circuit, the main circuit design, auxiliary circuit design, control circuit design and software implementation of the system are carried out in the whole paper, taking the power supply design as the main line and the principle of the high frequency switching power supply circuit in detail. The high frequency switching power supply packaging design, optimization structure, so that it can have a better seismic, compression, more reasonable volume and weight, debug the development of switching power supply, through the testing of various parameters. The utility of power supply is investigated comprehensively to meet the requirements of industry.
【學(xué)位授予單位】:遼寧工業(yè)大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2014
【分類號】:TM46
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