计算机应用 ›› 2011, Vol. 31 ›› Issue (02): 466-469.

• 人工智能 • 上一篇    下一篇

基于FPAA的模糊自整定PID控制器设计

王彦1,刘宏立2,王超3   

  1. 1. 湖南大学电气与信息学院;南华大学电气工程学院
    2. 湖南大学电气与信息学院
    3. 南华大学电气工程学院
  • 收稿日期:2010-05-17 修回日期:2010-07-14 发布日期:2011-02-01 出版日期:2011-02-01
  • 通讯作者: 王彦
  • 基金资助:
    国家高技术研究发展计划(“863”计划);基于图形处理器的高性能计算;湖南省科技厅计划项目;湖南省科技厅计划项目

Design of fuzzy selftuning PID controller based on field programmable analog array

  • Received:2010-05-17 Revised:2010-07-14 Online:2011-02-01 Published:2011-02-01

摘要: 为提高过程控制的响应速度,提出了一种基于现场可编程模拟阵列(FPAA)模糊自整定PID控制器的硬件实现方法。在8块AN221E04芯片中实现模拟乘法器、求小求和以及除法等单元电路,由各单元电路组合成完整的控制器。作为硬件电路,该控制器与软件编程实现的模糊PID控制器相比具有很强的实时性;作为纯模拟电路,该控制器内部传输信号均为连续值的模拟量,不需要A/D、D/A转换电路,与采用数字电路实现的控制器相比具有电路简单、运算速度快的特点。仿真实验结果表明:基于FPAA的模糊自整定PID控制器超调量小、稳态误差小,控制器响应时间降到了微秒级。

关键词: 现场可编程模拟阵列, 模糊自整定, PID控制器, 响应时间, 稳态误差

Abstract: To improve the response rate of process control, a method for hardware implementation of fuzzy self-tuning PID controller based on Field Programmable Analog Array (FPAA) was proposed. All cell circuits such as analog multiplier, seeking small and sum, divider were implemented on 8 AN221E04s, and then an intact controller was assembled with the cell circuits. As a hardware circuit, this controller has a better realtime quality than that of the fuzzy PID controller based on software programming; As an analog circuit, it does not need to be equipped with A/D and D/A conversion circuit because all of the internal transmission signals in this controller are analog values. Compared with digital circuit based fuzzy PID controllers, this controller has the features of simpler structure and faster operation. The experimental results show that fuzzy selftuning PID controller based on FPAA has small over modulation and steady-state error, and the response time is brought down to microseconds.

Key words: Field Programmable Analog Array (FPAA), fuzzy self-tuning, PID controller, response time, steady-state error