【作者】 田磊；

【导师】 李强；

【作者基本信息】 西安理工大学 ， 检测技术与自动化装置， 2008， 硕士

【摘要】 铝合金阳极氧化电源是一种用于铝合金电镀的特殊大功率整流电源,在工艺上它对电源的输出波形具有特殊的要求。同时电镀的被控对象是一个非线性、时变的复杂被控对象,且运行工况的变化对大功率电源系统的动态特性和参数都有较大的影响,这样对电源控制系统的设计就提出了很高要求。本文根据铝合金阳极氧化电源的工艺要求和电镀对象的特性,提出了以TMS320F2812为核心控制芯片的阳极化电源的硬件设计及软件实现方法,并且给出了系统整体的硬件原理图及软件流程图。根据硬件电路设计,具体实现了键盘与显示、模拟量采样、同步采集、移相触发和电流PID控制算法等功能。在硬件和软件上采用了多种的抗干扰措施,系统还加入了自诊断功能,可以及时发现系统中的故障,根据故障程度采取校正、切换、报警等技术措施,减少了系统非正常运行的概率,提高系统的稳定性。为了提高系统的控制性能提高系统的鲁棒性,本文对整个电源系统进行了分析建模,并根据其特性研究了结构简单,具有自学习、自适应能力且易于计算的单神经元PID控制法。结合被控对象特点进行分析和改进,形成了合适于阳极化应用的智能型单神经元PID控制器,并对其进行了方针分析。实验结果表明:本系统整体设计合理,硬件结构简单可靠,性价比高,具有很好的推广应用前景。更多还原

【Abstract】 Power anodized aluminum alloy is a special high-power rectifier for aluminum alloy electroplating, which has special requirement for its power output waveform in the process. Electroplating object is a complicated nonlinear, time-varying object, and run-time work status change have a greater influence for hight power supply system. On the dynamic characteristics and parameters, which place high demands on this power control system design.In this paper, based on the anodized aluminum power technological requirements and electroplating object characteristic, hardware design and software realization of. the anodized aluminum power with TMS320F2812 as core control chip have been offered, and the whole system hardware schematics and software flow chart are given too. Keyboard, LCD, analog sampling, synchronized signal sampling, Phase-shifted trigger, current PID control algorithm and so on have been realized according to the hardware circuit design. Many kinds of antijamming measure have been used on the hardware and the software, self-diagnosis function has also been added to this system. Fault in the system can be found quickly, adjustment, switching, recombination, alarm and so on have been adopted respectively. System errors have been reduced, and system stability has been improved.In order to improve the control performance and enhance the robustness of the system. In this paper, analysis and modelling are carried on the entire power system, single neuron PID . algorithm which has simple structure, self-learning ability, self-adaptive ability and easy to calculate, has been improved according to its characteristic. Intelligent single neuron PID controller suitable for anodizing application is formed; simulation and analysis have been carried on it.The experimental results show that the whole system is designed reasonable, hardware structure is simple and reliable, the performance-to-price ratio is high, and has very good promoted application prospect.更多还原