摘要
本文以DC-AC逆变器为研究对象,设计了一种基于推挽结构的SPWM逆变器。以单片机PIC18F4520为核心设计了逆变器硬件电路,主要包括推挽式逆变主电路、控制电路、驱动电路、取样电路、保护电路等。重点分析了SPWM控制算法,并给出了软件实现SPWM波形的过程。通过MATLAB仿真及实际测试结果对比,证明了本方案设计的逆变器能得到优质的正弦交流电。
An SPWM inverter based on pull-push structure is introduced in this paper which focuses on the study of the DC-AC inverter. The hardware circuit with the single-chip PIC18F4520 at the core contains the pull-push inverter as the main circuit, the control circuit, the drive circuit, the sampling circuit, the protection circuit and so on. The SPWM control algorithm is particularly analyzed and the realization of the SPWM waveforms in software is presented. The contrast of the MATLAB simulation and actual test results leads to the conclusion that the inverter can generate high-quality sinusoidal AC.
出处
《微计算机信息》
2010年第17期169-171,共3页
Control & Automation
基金
项目名称:燃料电池机器人动力系统的多模型自适应预测控制研究
基金颁发部门:国家自然科学基金委(60705032/F030605)
