發(fā)布時(shí)間：2022-02-13 20:24

　　合肥先進(jìn)光源（HALF）是中國(guó)正在進(jìn)行預(yù)研的第四代衍射極限儲(chǔ)存環(huán)光源。超低的束流發(fā)射度對(duì)包括磁鐵電源在內(nèi)的每個(gè)加速器系統(tǒng)提出了更高的要求。由于束流軌道會(huì)在光源運(yùn)行的任何時(shí)刻發(fā)生偏移,因此最終的同步輻射光的質(zhì)量也會(huì)受影響。由于電子束流軌道受到由磁鐵電源決定的磁場(chǎng)的約束,所以快速響應(yīng)的電源可以幫助校正磁鐵迅速完成對(duì)束流軌道位置的校正。然而,目前普通的校正磁鐵電源性能并不足以解決自身輸出穩(wěn)定性和響應(yīng)速度之間的矛盾。本文基于合肥先進(jìn)光源的物理設(shè)計(jì)和束流仿真要求,致力于研制出響應(yīng)速度快、輸出穩(wěn)定度高的校正磁鐵電源原型樣機(jī)。線性電源具有不可替代的低紋波噪聲的優(yōu)勢(shì),本文研制了一種使用金屬氧化物半導(dǎo)體場(chǎng)效應(yīng)晶體管（MOSFET）的300W功率雙極性線性電源樣機(jī)。不同于常規(guī)H橋拓?fù)涞氖?本設(shè)計(jì)中的兩個(gè)MOSFET工作在線性放大狀態(tài),另外兩個(gè)MOSFET工作在開(kāi)關(guān)狀態(tài)用于切換輸出電流的極性。選用了高精度的20位分辨率數(shù)字模擬轉(zhuǎn)換器（DAC）芯片AD5791來(lái)保證20ppm的電流設(shè)定分辨率。使用高精度萬(wàn)用表Fluke8508A進(jìn)行性能測(cè)試,結(jié)果顯示電源的頻率響應(yīng)可以達(dá)到10kHz,長(zhǎng)期穩(wěn)定度可以達(dá)到5ppm... 

【文章來(lái)源】：中國(guó)科學(xué)技術(shù)大學(xué)安徽省211工程院校985工程院校

【文章頁(yè)數(shù)】：169 頁(yè)

【學(xué)位級(jí)別】：博士

【文章目錄】：
摘要
ABSTRACT
Acknowledgements
Chapter 1 Introduction
    1.1 BACKGROUND AND MOTIVATION
    1.2 REVIEW OF MAGNET POWER SUPPLY SYSTEM
    1.3 RESEARCH STATUS OF CORRECTOR MAGNET POWER SUPPLY
    1.4 RESEARCH OBJECTIVES
    1.5 THE SUMMARY AND INNOVATION OF THE THESIS
    1.6 REFERENCES
Chapter 2 Analysis of topology and control strategy
    2.1 INTRODUCTION TO LINEAR POWER SUPPLY DESIGN METHODS
        2.1.1 Constant current power supply based on an operational amplifier
        2.1.2 Linear power supply based on electronic load principle
    2.2 BRIEF INTRODUCTION OF SWITCHING POWER SUPPLY
        2.2.1 Differences between digital control and analog control
        2.2.2 Basic control algorithm of switching power supply
    2.3 CONCLUSION
    2.4 BIBLIOGRAPHY
Chapter 3 Development of linear power supply for fast corrector
    3.1 COMPOSITION OF THE POWER SUPPLY
    3.2 IMPLEMENTATION METHOD OF THE POWER CONVERSION
        3.2.1 Operation mode of the power converter module
        3.2.2 Control strategy for the efficiency
        3.2.3 Design of "H-bridge" control circuit
    3.3 DESIGN OF PI CLOSED-LOOP CONTROL SYSTEM
    3.4 DESIGN OF THE DIGITAL CONTROL CARDS
        3.4.1 Digital controller for the linear polar supply
        3.4.2 Sampling circuits
    3.5 SOFTWARE DESIGN OF LINEAR POWER SUPPLY
        3.5.1 Design of infrastructure driver software
        3.5.2 Local control interface design
    3.6 INTERFACE WITH ORBIT FEEDBACK SYSTEM
    3.7 CONCLUSION
    3.8 BIBLIOGRAPHY
Chapter 4 A Multilevel Power Supply Based on Buck Cascade Circuit
    4.1 DESIGN OF MULTILEVEL POWER CONVERSION MODULE
        4.1.1 Aohantages of multilevel circuits
        4.1.2 Buck cascaded three-level topology
        4.1.3 Modulation method based on carrier phase shifting
    4.2 DESIGN AND STABILITY ANALYSIS OF THE CLOSED LOOP SYSTEM
    4.3 DIGITAL CONTROLLER FOR THE SWITCHING POWER SUPPLY
        4.3.1 Core control unit
        4.3.2 Sampling circuits
    4.4 SIMULATION ANALYSIS USING SIMULINK
    4.5 MOSFET DRIVING CIRCUIT
    4.6 DESIGN OF SOFTWARE FOR SWITCHING POWER SUPPLY
        4.6.1 FPGA software design
        4.6.2 Local control software design
    4.7 CONCLUSION
    4.8 BIBLIOGRAPHY
Chapter 5 Performance test of the fast corrector power supply prototypes
    5.1 TEST METHODS AND STANDARDS FOR PERFORMANCE PARAMETERS
    5.2 HIGH-PRECISION TEST PLATFORM FOR POWER SUPPLIES
        5.2.1 Test platform based on 8.5-digit multimeter
        5.2.2 Multi-channel high-precision test platform
        5.2.3 Performance comparison between the two test platforms
    5.3 TEST OF THE POWER SUPPLY PROTOTYPES
        5.3.1 Experimental results and analysis of the linear power supply
        5.3.2 Design verification of multilevel switching power supply prototype
    5.4 TEST OF DIGITAL CONTROL CARDS
    5.5 CONCLUSION
    5.6 BIBLIOGRAPHY
Chapter 6 Summary and Recommendations
    6.1 DEVELOPMENT OF A LINEAR CORRECTOR MAGNET POWER SUPPLY
    6.2 DEVELOPMENT OF A SWITCHING POWER SUPPLY FOR CORRECTOR MAGNET
    6.3 TEST SYSTEM ANALYSIS
    6.4 RECOMMENDATIONS AND FUTURE WORKS
Appendix 1
Appendix 2
Biography
    PUBLICATIONS
        Journals
        Proceedings
        Patent
致謝



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