基于TMS320F28335的单相逆变电源.docxVIP

- I- PAGE \* MERGEFORMAT PAGE \* MERGEFORMAT II 摘 要 逆变器具有广泛的用途，其性能的优劣主要由其控制系统决定。本设计系统是以DSP TMS320F28335为控制核心的单相全桥式SPWM逆变电源，对其硬件电路和软件控制方法进行了分析和设计，并采用芯片AD7606进行采样。相比于传统的电压型逆变电路，采用正弦脉冲调制（SPWM）的方法就可在把直流变成交流的同时，既能调压又能调频。单相全桥电压型SPWM逆变电路相比典型电压型逆变电路，其输出没有静态误差，有良好的输出波形，输出电压的THD（电流谐波畸变率）小并且是稳定的系统，有很好的工作特性。 关键词：逆变器；全桥逆变；TMS320F28335 ；AD7606；SPWM Abstract Inverter devices have a wide range of applications.The advantages and disadvantages of its performance mainly decided by the control system. This TMS320F28335 design system based on DSP as the control core of single phase full bridge SPWM inverter power supply, its hardware circuit and software control method has carried on the analysis and design, and use the chip AD7606 samples. Compared to the traditional voltage inverter circuit, adopting the method of sine pulse modulation (SPWM) can not only change DC into to AC at the same time, but also regulate voltage and modulate frequency . Compared with the typical voltage inverter circuit,the output of single phase full bridge SPWM inverter circuit do not produce static error, and it has good output waveform.The THD of output voltage is small and the system is stable.Meanwhile,the operating characteristic is excellent. Keywords：Inverter; Full bridge inverter; TMS320F28335; AD7606; SPWM - II- –III– 目录 TOC \o "1-3" \h \z \u HYPERLINK \l "_Toc24909" 摘 要 PAGEREF _Toc24909 I HYPERLINK \l "_Toc30837" 1 引言 PAGEREF _Toc30837 1 HYPERLINK \l "_Toc15845" 1.1 选题背景及实际意义 PAGEREF _Toc15845 1 HYPERLINK \l "_Toc460" 2 系统设计 PAGEREF _Toc460 2 HYPERLINK \l "_Toc6818" 2.1 设计要求 PAGEREF _Toc6818 2 HYPERLINK \l "_Toc32492" 2.2 系统框图 PAGEREF _Toc32492 2 HYPERLINK \l "_Toc28764" 2.3 方案选择 PAGEREF _Toc28764 3 HYPERLINK \l "_Toc271" 2.3.1 逆变电路模块 PAGEREF _Toc271 3 HYPERLINK \l "_Toc8224" 2.3.2 驱动电路模块 PAGEREF _Toc8224 3 HYPERLINK \l "_Toc3809" 2.3.3 采样模块 PAGEREF _Toc3809 3 HYPERLINK \l "_Toc24688" 3 硬件电路设计 PAGEREF _Toc24688 4 HYPERLINK \l "_Toc19773" 3.1 全桥逆变电路 PAGEREF _Toc19773 4