基于ＦＰＧＡ的数字ＰＩＤ控制器研究

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

基于ＦＰＧＡ的数字ＰＩＤ控制器研究

许忠仁，姜　丽，穆　克，朱文伟

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-ren， JIANG Li， MU Ke， ZHU Wen-wei

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/Abstract

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

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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