【作者】 罗长春；

【导师】 马皓；

【作者基本信息】 浙江大学 ， 电气工程， 2007， 硕士

【摘要】 数字控制硬件电路结构简单，可靠性高，易于实现先进的控制算法和系统的监控与在线升级，数字控制技术是现代电力电子的发展方向。现代电力电子实验教学也应该紧跟电力电子的发展方向，现有的单相逆变器实验装置都采用模拟技术、开环控制，无法满足创新型综合设计实验教学，本文提出了一种基于数字信号处理器(DSP)控制的单相逆变器数字控制实验系统。本文主要介绍了基于数字信号处理器(DSP)控制的单相逆变器数字控制实验系统的总体设计方案。论文首先综述了逆变器的波形调制技术、闭环控制策略和数字控制的特点及单相逆变器实验装置发展现状，在分析了单相逆变器数字控制的需求基础上提出了实验系统的设计原则、选择了基于数字信号处理器(DSP)技术平台，完成了实验系统的软硬件构架和实验系统的硬件电路设计。然后基于所设计的单相逆变器数字控制实验系统硬件电路，进行了SPWM开环控制、电压瞬时值单环PID控制和电压电流双环控制的控制参数设计和软件的设计，文章最后给出了实验结果。更多还原

【Abstract】 Digital controlled circuits with the merits of simple structure and high reliability tend to realize the advanced control arithmetic and the monitor and updates of the system. The development orientation of Modern power electronics is the digital control technique, so the instructional mode of experiment should follow the orientation. Nowadays majorities of the experiment equipment of single-phase inverters adopt analog technique and open-loop control, which can not satisfy the demands of the synthetical and innovational experiment instruction. This paper presents an experiment system of single-phase inverter based on DSP control.This paper mainly presents the general design of a experiment system of single-phase inverter based on the DSP control. Waveform modulation technology, closed-loop control strategy, digital control features and present state of experiment system of single-phase inverter are outlined firstly. Then based on the analysis of demands of single-phase inverter with digital control, this paper proposes the design principle of the experiment system, chooses the platform based on the DSP control, and finishes the system’s framed construction and the circuit design. Furthermore, this paper gives the parameters design of open-loop control with SPWM and single-loop PID voltage control and voltage and current double closed-loop control. At last , the experiment results are presented.更多还原