声明
摘要
ABSTRACT
Acknowledgements
Contents
List of Figures
List of Tables
Chapter 1 Introduction
1．1 Background and motivation
1．2 Relview 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
References
Chapter 2 Analysis of topology and control strategy
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
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
3．2．2 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 power 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 linterface design
3．6 Interface with orbit feedback system
3．7 Conclusion
Bibliography
Chapter 4 A Multilevel Power Supply Based on Buck Cascade Circuit
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
4．3．2 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
Bibliography
Chapter 5 Performance test of the fastcorrector 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
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
Biography
致谢
中国科学技术大学;
