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The Research on an Inverter Power Supply System Based on DSP

Author: XieFang
Tutor: LiuMingLan
School: Wuhan University of Technology
Course: Detection Technology and Automation
Keywords: SPWM Fuzzy self-tuning PI control CAN bus
CLC: TM464
Type: Master's thesis
Year: 2006
Downloads: 886
Quote: 15
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Abstract


The traditional inverter power due to the small size, light weight, and other characteristics, have been widely used in the marine, aviation, medical, telecommunications and other industries. However, with the rapid development of 3G technology and the Internet, it has the power inverter put forward higher requirements: processor speed is increasing, ever-smaller and more and more complex control algorithms set up the capacity of the more to the larger, more and more low cost. DSP development just to meet this demand. The system developed by the subject in the context of the actual project, inverter power supply system based on DSP control. DSP control system is the focus of the thesis, it is the core part of the entire inverter system, the system used to achieve a variety of control strategies to protect the most critical part. The papers give full consideration to the DSP system design of present and future demand inverter technology, in-depth analysis of the DSP control SPWM waveform generator program; taking into account the impact of the inverter system internally various electrical parameters and environmental factors on the system, in order to low-cost implementation of the actual needs and the flexibility of use combined overall hardware structure of a DSP-based inverter system design and carry out a detailed analysis of the study. The depth analysis of the the SPWM control mode. A comparative study of three traditional sampling methods, the use of Matlab were analyzed and their harmonic suppression of the better programs. In order to get a better performance of the system output, the paper discussed in-depth inverter circuit control strategies. For the double-loop control system, the introduction of fuzzy self-tuning PI control program, and to be realized. -Depth analysis of a variety of three-phase power inverter topology, with a three-phase full-bridge inverter structure for the user's needs, the main circuit, the core of the system hardware TMS320F240 control system and extend the system based on the required of functional modules; software system using for TMS320F240 assembly language and C language mixed programming, given its software development process, and for the realization of the various features of the system, the software flow chart. Paper also for each of the three aspects of the architecture, hardware, software, optimized design, laid the foundation for a performance inverter system. Finally, in-depth papers specifically study the CAN bus for multiple inverter parallel program starting from the the multiple inverter parallel conditions, the analysis inverter CAN bus expansion and interoperability.

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CLC: > Industrial Technology > Electrotechnical > Transformers, converters and reactors > Converter > Inverter
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