辽宁石油化工大学学报

辽宁石油化工大学学报 ›› 2012, Vol. 32 ›› Issue (3): 74-79.

• 计算机与自动化 • 上一篇    下一篇

基于FPGA的数字PID控制器研究

许忠仁姜 丽穆 克朱文伟   

  1. 辽宁石油化工大学信息与控制工程学院,辽宁抚顺113001
  • 收稿日期:2011-11-11 出版日期:2012-09-20 发布日期:2017-07-06
  • 作者简介:许忠仁(1955-),男,辽宁沈阳市,教授

Digital PID Controller Based on FPGA

XU Zhong-renJIANG LiMU KeZHU Wen-wei   

  1. School of Information and Control Engineering,Liaoning Shihua University,Fushun Liaoning 113001,P.R.China
  • Received:2011-11-11 Published:2012-09-20 Online:2017-07-06

摘要:         用常规的方法在FPGA上实现PID控制器,要消耗大量的乘法器、加法器和存储器,FPGA的硬件资源不能被合理地利用,而且能耗高。研究在FPGA上采用直接DA(DA-Ⅰ)及改进的DA(DA-Ⅱ)算法,实现数字PID控制器。DA-Ⅰ算法用的加法器、LUT单元和延时模块等,较常规方法要节省许多硬件资源;DA-Ⅱ算法,能进一步减少各单元模块的使用,并应用两级流水线技术,降低能耗。通过对DA-Ⅰ和DA-Ⅱ两种算法实现的PID控制器的比较,在硬件资源、处理速度、复杂程度和能耗等方面,探讨了改进后的PID控制器的性能。

关键词:  现场可编程门阵列 ,  数字PID ,  控制器

Abstract: The conventional method of achieving PID by FPGA consumes a lot of multiplier, adder and memory. FPGA hardware resources can not be reasonably used, and system holds high energy consumption. Research on using direct DA ( DA-Ⅰ) and improved DA ( DA-Ⅱ) algorithm by FPGA to realize the digital PID controller. Compared with the conventional method, DA-Ⅰ algorithm saves many hardware resources;because of using adder, LUT unit and time delay module etc, DA-Ⅱ algorithm can reduce the unit modules further and reduce energy consumption by the application of two stage pipeline technology. Through the comparison of PID controller by the DA-Ⅰ and DA-Ⅱ algorithm, discussed the improved PID controller performance about the hardware resource, processing speed, complexity and energy consumption etc.

Key words:  FPGA , Digital PID , Controller

引用本文

许忠仁,姜 丽,穆 克,朱文伟. 基于FPGA的数字PID控制器研究[J]. 辽宁石油化工大学学报, 2012, 32(3): 74-79.

XU Zhong-ren, JIANG Li, MU Ke, ZHU Wen-wei. Digital PID Controller Based on FPGA[J]. Journal of Liaoning Petrochemical University, 2012, 32(3): 74-79.

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