摘要:本文设计了一种中频感应加热电源,由于温度容易控制以及在现实生活中比较容易实现生产上的机械及自动化等优点,现在它已经在金属熔炼行业、透热铸造领域、和特 殊紧固件热处理等行业应用非常广泛。论文介绍了感应加热电源的结构,分析了它的原理。 本文设计的中频感应加热电源,主要包括二极管不可控整流电路和单相全桥逆变电路。本 文对主电路进行了元器件选型,设计了基于 SG3525A 的控制电路,同时采用 HCPL-316J 设 计驱动电路,最后在 MATLAB/simulink 仿真环境下建立系统仿真模型,对感应加热电源进 行了仿真研究,结果表明本文研究设计的中频感应加热电源控制系统方案合理可靠。74402
毕业论文关键词:感应加热电源,不可控整流,逆变电路,SG3525A
Abstract: A medium frequency induction heating power supply is designed in this paper, because the temperature is easy to control, and in real life is easier to achieve production of machinery and automation, etc。。 Now it has been in the metal smelting industry, diathermy casting field, and special fastening pieces heat treatment etc。 industry is a very wide range of applications。 The structure of the induction heating power supply is introduced in this paper, and its principle is analyzed。 In this paper, the design of the intermediate frequency induction heating power supply, diode rectifier circuit and single-phase full bridge inverter circuit is mainly included in the。 The main circuit in this paper was components selection, SG3525A based control circuit is designed, at the same time hcpl-316j design of drive circuit is adopted, the system simulation model is established in Matlab / Simulink simulation environment, induction heating power supply was simulated research。 The results showed that in this paper, the design of medium frequency induction heating power supply control system scheme is reasonable and reliable。
Keywords: Induction heating power supply, uncontrolled rectifier, inverter circuit,SG3525A
目 录
1 绪论 4
1。1 感应加热的工作原理 4
1。2 感应加热电源的现状 5
2 感应加热电源结构及原理分析 6
2。1 串并联谐振电路的比较 6
2。2 串联谐振电源工作原理 7
3 感应加热电源电路分析 8
3。1 整流部分电路分析 9
3。2 逆变部分电路分析 10
4 感应加热电源电路设计 11
4。1 主电路设计 11
4。1。1 整流二极管和滤波电路元件选择 11
4。1。2 IGBT 的选择 12
4。1。3 槽路电容和电感的参数设定 13
4。2 控制电路设计 13
4。3 驱动电路设计 14
5 仿真和结论 15
参考文献 18
致 谢 19
1 绪论
1。1 感应加热的工作原理
我们通常知道的感应加热的本质主要利用电磁感应定律即交变的电流产生交变的磁 场,通过产生电流形成的交变磁场从而形成涡流效应最终达到加热的效果。如下图所示: SG3525A中频感应加热电源设计+电路图:http://www.youerw.com/zidonghua/lunwen_84993.html