同步发电机智能励磁控制系统研究

发布时间：2018-03-01 11:41

本文关键词： 励磁控制系统改进粒子群算法 PID CANopen　出处：《辽宁工程技术大学》2014年硕士论文　论文类型：学位论文

【摘要】：随着电网规模的不断扩大、发电机容量的不断提升,发电机组对励磁控制系统的控制性能和响应速度越来越高。控制理论与电力电子技术的发展,促进了数字励磁控制系统的不断发展。本文在这种背景下,结合改进粒子群算法设计以TMS320F2812为下位机的励磁闭环控制系统和以Visual C++为上位机的CANopen通讯网络。文章首先阐述了励磁控制系统的基本控制原理,包括励磁控制系统的控制过程、移相触发电路的工作原理。然后建立励磁控制系统三阶数学模型,利用此模型对改进粒子群算法在励磁控制系统中的实现做了深入的研究,包括利用改进粒子群算法优化PID参数和利用Matlab对本文提出的改进粒子群PID算法在励磁控制系统中的应用进行仿真验证。而后详细介绍了励磁控制系统上下位机的硬件组成,在建立硬件平台的基础上编写了系统最关键的程序并进行了调试验证,其中包括励磁控制系统主程序、基于过采样算法的模拟量采样中断程序、捕获中断程序、三点前推式数据记录中断程序、脉冲触发中断程序、CAN总线底层通讯程序。最后设计了基于CAN总线的励磁控制系统CANopen通讯协议。利用DSP的eCAN模块和Visual C++的API函数对通讯网络的上行下行数据做了调试,并取得良好的通讯效果。
[Abstract]:With the expansion of power network and the continuous improvement of generator capacity, the control performance and response speed of generator to excitation control system are higher and higher. The development of control theory and power electronics technology, It promotes the development of digital excitation control system. Combined with the improved particle swarm optimization algorithm, the excitation closed-loop control system based on TMS320F2812 and the CANopen communication network based on Visual C are designed. Firstly, the basic control principle of excitation control system, including the control process of excitation control system, is described in this paper. The third order mathematical model of excitation control system is established, and the realization of improved particle swarm optimization algorithm in excitation control system is studied deeply. The application of the improved Particle Swarm Optimization (PID) algorithm in excitation control system is verified by using Matlab, and the hardware composition of the upper and lower computer of the excitation control system is introduced in detail, including the application of the improved PSO algorithm to the excitation control system and the application of the improved PSO algorithm to the excitation control system by using Matlab. On the basis of establishing the hardware platform, the most critical program of the system is written and debugged and verified, including the main program of excitation control system, the interrupt program of analog sampling based on over-sampling algorithm, and the program of capturing interrupt. Three point forward data recording interrupt program, Finally, the communication protocol of excitation control system CANopen based on CAN bus is designed. The uplink and downlink data of communication network are debugged by eCAN module of DSP and API function of Visual C. And achieved good communication effect.
【学位授予单位】：辽宁工程技术大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM31

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