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毕业设计(论文)

课 题 名 称 单相正弦波逆变电源的设计 学 生 姓 名 学 号

系、年级专业 电气工程系 指 导 教 师 职 称 教授

2015 年 5 月 15 日

邵阳学院毕业设计（论文）

摘 要

正弦波逆变电源在工业领域有着广泛的应用。该论文设计的功率是30W的单相正弦波逆变电源。该论文首先对设计的目的、意义和国内外发展现状进行了阐述，以及设计要达到的技术指标要求；然后对逆变的主电路的设计方案进行了论证；接着阐述了逆变电源的详细设计过程，包括主电路中的四个功率MOSFET开关管型号参数的选择、缓冲电路的设计、LC低通滤波器参数的选择、基于STM32单片机的控制电路、基于IR2110驱动芯片的驱动电路等；最后对制作成的实物作品进行了测试和分析，得到了测试数据和波形，经过分析和计算与设计要求相符，验证了设计方案的正确性。

关键词：正弦波；STM32单片机；脉冲宽度调制；控制电路；逆变电路

I

邵阳学院毕业设计（论文）

Abstract

Sine wave inverter power supply in the industrial field has a wide range of applications.The power of this paper is 30W single-phase sine wave inverter power supply.The first papers on the purpose, significance and development status at home and abroad were introduced, and the technical indicators of the design to meet the requirements; then the main circuit of the inverter design are discussed; and then describes the detailed design process of inverter circuit, including the main circuit of the four power MOSFET switch tube type parameters selection, buffer circuit design, LC low-pass filter parameters, based on STM32 MCU control circuit, based on the IR2110 driving chip driving circuit; finally the physical works produced were tested and analyzed, obtained test data and waveform, through analysis and calculation are consistent with the design requirements, verify the design.

Keywords：Sine wave；STM32 Single chip microcomputer；Pulse width

modulation；The control circuit；The invert circuit

II

邵阳学院毕业设计（论文）

目录

摘要 ················································································· I Abstract ············································································ II 1 绪论 ············································································· 1

1.1 设计的目的、意义 ····················································· 1 1.2 逆变电源的国内外现状及水平 ······································ 1 1.3 设计任务和要求 ························································ 2 1.4 设计进度安排 ··························································· 2 2 方案设计 ······································································· 3 2.1 半桥逆变电路 ··························································· 4 2.2 全桥逆变电路 ··························································· 5 3 单相电压型正弦波逆变电源的主电路设计 ······························ 7

3.1 主电路开关管参数的确定 ············································ 7 3.2 缓冲电路 ································································· 7 3.3 逆变电源LC滤波电路 ··············································· 8 4 单相正弦波逆变电源的控制电路和驱动电路的设计 ················ 10

4.1 PWM控制电路及其调制方法 ······································ 10 4.2 用STM32发双极性的SPWM波 ································· 13 4.3 对SPWM波死区的设置 ··················· 错误！未定义书签。 4.4 驱动电路设计 ································· 错误！未定义书签。 5 测试结果与结论 ···························································· 20 5.1 SPWM波经驱动电路的波形 ······································· 20 5.2 直流逆变后的波形 ·························· 错误！未定义书签。2 6 总结 ·········································································· 24 参考文献 ········································································ 25 附录 ·············································································· 26 致谢 ·············································································· 32

III

邵阳学院毕业设计（论文）

1 绪论

1.1 设计的目的、意义

逆变技术是一种利用电力电子技术对电能实现转换的技术，这种技术是使输入的直流以交流输出，即DC-AC的直接逆 …… 此处隐藏：1223字，全部文档内容请下载后查看。喜欢就下载吧 ……