基于DSP的管道水感应加热关键技术的研究
文献类型：学位论文
| 作者 | 张成 |
| 学位类别 | 工学硕士 |
| 答辩日期 | 2015-05-26 |
| 授予单位 | 中国科学院大学 |
| 授予地点 | 中国科学院自动化研究所 |
| 导师 | 梁自泽 |
| 关键词 | 感应加热 DSP 锁相环 移相PWM Induction heating DSP PLL Phase-shift PWM |
| 其他题名 | Research on the key technologies of pipeline-water induction heating based on DSP |
| 学位专业 | 控制理论与控制工程 |
| 中文摘要 | 管道水感应加热是利用电涡流对管壁及流水进行加热的一种技术，由于具有效率高、清洁等优点而在工业生产中得到广泛应用。随着微电子与数字信号处理技术的发展，感应加热技术正朝着智能化与数字化控制的方向发展。DSP具有高速的运算速度及丰富的外设资源，使得某些先进的控制策略能够应用实践。采用DSP对感应加热关键技术进行研究，可使系统具有更好的稳定性及控制实时性，在感应加热行业具有重要的研究意义与应用价值。 本文的研究工作以感应加热关键技术为核心，主要针对锁相环频率跟踪、移相PWM调功以及基于DSP的硬软件设计等问题进行研究。论文的主要内容如下： 1、介绍了感应加热基本原理及国内外发展现状。通过对感应加热电源主电路进行分析与比较，确定了本文的主电路方案，并对RLC串联谐振电路进行了分析。 2、阐述了感应加热中的两大关键技术——锁相环与功率调节，建立了数字锁相环数学模型，分析了移相PWM调功的工作原理。采用MATLAB中的SIMULINK工具箱对系统进行了仿真，给出了仿真实验数据。 3、确定了系统硬件方案，设计了功率电路与控制电路。其中功率电路部分采用了IGBT全桥逆变，围绕逆变主电路设计了采样电路与相位检测电路等。控制电路采用DSP TMS320F28335为核心处理器，设计了IGBT驱动电路、保护电路、人机交互接口电路等。 4、基于上述的硬件平台，编写了软件控制程序。在CCS中采用훍C/OS II嵌入式实时操作系统为基本框架，开发了数字锁相环、移相PWM调功、功率闭环控制、故障保护及人机交互等程序，并对关键部分进行了介绍，给出了程序流程图。 5、最后，在小功率环境下进行了整机联调，给出了实验结果。 |
| 英文摘要 | Induction heating for pipeline water is a technology that heats the tube wall and water by eddy current, it’s widely used in industrial production for the sake of high efficiency, cleanliness and other advantages. With the development of microelectronics and digital signal processing technology, induction heating technology is developing in the direction of intelligent and digital control. DSP with high-speed operation ability and abundant peripheral resources, has made some advanced control strategies applied into practice. Using DSP to study the key technologies of induction heating can make the heating system more reliable and realize real-time control, it has important research significance and application value in the field of induction heating. In this paper, taking the key technologies of induction heating as the core research work, we mainly studied the problems which include PLL frequency-tracking, phase-shift PWM power regulation, the design of hardware and software based on DSP and so on. The main content of this paper is as follows: 1. In this paper, we introduced the basic principle of induction heating and the research status at home and abroad. By analyzing and comparing several power circuits of the induction heating power supply, we determined the power circuit for this paper, and the RLC series resonant circuit was analyzed. 2. We described the two key technologies of induction heating—PLL and power regulation, established the mathematical model of digital PLL and analyzed the working principle of phase-shift PWM power regulation. The system was simulated with the SIMULINK toolbox in MATLAB and the simulation data are presented. 3. We determined the scheme of the hardware system and designed the power circuit and control circuit. The power circuit uses IGBT full bridge inverter. We designed the sampling circuit, the phase detection circuit. Using DSP TMS320F28335 as the core processor, we designed IGBT driving circuit, protection circuit, human-machine interface circuit and so on. 4. On the basis of the hardware platform, we wrote the control program. Using 훍C/OS II embedded real-time operating system as the basic framework in CCS, we developed programs for digital PLL, phase-shift PWM power regulation, closed-loop power control, fault protection, human-machine interface and so on, the key parts are introduced and the program flow charts are given. 5. Finally, the induction heating system was debugged in low power condition ... |
| 语种 | 中文 |
| 其他标识符 | 201228014628025 |
| 源URL | [http://ir.ia.ac.cn/handle/173211/7761]  |
| 专题 | 毕业生_硕士学位论文 |
| 推荐引用方式 GB/T 7714 | 张成. 基于DSP的管道水感应加热关键技术的研究[D]. 中国科学院自动化研究所. 中国科学院大学. 2015. |
入库方式： OAI收割
来源：自动化研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。