10kw感应加热电源设计

摘要：随着感应加热电源在熔炼、铸造、透热、淬火、弯管、烧结、表面热焊以及晶体生长等行业中得到的非常广泛的应用，本文阐述了感应加热发展背景及其意义；介绍了本课题主要的研究内容及任务。本文介绍了感应加热电源的总体结构；通过对感应加热电源常用的谐振回路和拓扑结构进行了分析，以及对串、并谐振电路的对偶特性和优缺点的比较，选择了更适合感应加热电源及本课题的串联谐振型逆变器。在功率的调节方面，分析了几种常用的调功方式、选用了移相脉冲宽度调制调功。本文设计了10kw感应加热电源，对主电路进行了设计，选用芯片UC3895来实现PSPWM移相调功，选用IR2110设计了驱动电路，最后在PSPICE软件中进行了仿真，仿真结果证明理论分析的正确。94021

毕业论文关键词：感应加热；UC3895；移相调功

Abstract:With the induction heating power supply in melting, casting, diathermy, quenching, bending, sintering, surface heat welding and crystal growth in the industry is widely used, this paper will take 10kW induction heating power supply as the research object, describes the background and significance of the development of induction heating; introduces the research contents and the main task of this project。 This paper introduces the overall structure of the induction heating power supply; the resonant circuit topology and commonly used in induction heating power supply are analyzed, and the comparison of dual characteristics of series and parallel resonant circuit and the advantages and disadvantages, choose a more suitable for induction heating power supply and the subject of the series resonant inverter。 In the regulation of power, analysis of several commonly used modulation method, the phase shifted pulse width modulation function can be realized by the UC3895 chip, which is simulated in PSPICE software, the results obtained are correct。

Key words：induction heating；UC3895；phase-shifted power regulation

第1章绪论 4

1。1 感应加热电源研究背景及意义 4

1。2感应加热电源的目的 4

1。3本文研究设计的内容 4

第2章感应加电源原理及主电路拓扑结构 5

2。1感应加热的基本原理 5

2。2 感应加热电源的基本组成 6

2。3感应加热电源主电路拓扑结构的选择 7

2。4串联谐振逆变器负载特性的分析 9

第3章感应加热电源的调功方式选择 10

3。1 直流调功 10

3。2 逆变调功 11

第4章主电路与控制电路参数设计 13

4。1 整流电路参数计算 13

4。2 滤波电容的选取 14

4。3 逆变开关的选择 15

4。4谐振回路参数计算 15

4。5 移相控制芯片UC3895 15

4。6驱动电路的设计 18

第5章仿真结果 20

结论 23

参考文献 24

致谢 10kw感应加热电源设计:http://www.youerw.com/zidonghua/lunwen_201985.html