位流PID控制器及其在直流电机中应用  

Bit-stream PID Controller and Its Application in DC Motor

作　　者：谭子尤[1] 唐圣学[1] 孟凡斌[1] 向晓燕[1] 

机构地区：[1]吉首大学物理科学与信息工程学院,湖南吉首416000

出　　处：《微电子学与计算机》2010年第2期41-44,共4页Microelectronics & Computer

基　　金：国家自然科学基金项目(50677014);湖南省自然科学基金项目(06JJ2024);湖南省教育厅科学研究项目(08C715)

摘　　要：提出了Σ-Δ调制编码的一位位流信号PID控制器.首先,介绍了一个结构简单、性能高的内置Σ-Δ调制器和一个位流加法器;然后,以它们为模块提出了位流乘法器、位流积分器和位流微分器,进而用它们组成了位流PID控制器.采用位流信号PID控制器,可以避免在位流信号和多位信号之间的转换;位流PID控制器具有比Nyquist PID控制器更少的硬件电路资源.提出了电机的闭环位流PID控制系统,并进行了仿真.结果表明,设计的电路可行,效能高.The paper presents a novel PID controllers by processing directly one-hit over-sampled ∑-△ coded data streams. A second-order digital ∑-△ modulation was intruduced and used as remodulator embedded the circuit for its simple structure. The basic proposed bit streams modules, such as adder, integrator and derivative in the paper, are simple and easy to constitute the PID controllers. The loop-closed system with two PID controllers are presented and compared. The simulations are carrid out and shown that the circuit complexity can be reduced efficiently and the design is feasible.

关 键 词：位流 ∑-△调制器 PID控制器 直流电机 

分 类 号：TN61[电子电信—电路与系统]