| 高精度数控直流电流源的设计与实现 |
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| 引用本文： | 曹利钢,汪用瑜,于盛睿. 高精度数控直流电流源的设计与实现[J]. 仪表技术, 2011, 0(3): 61-65 |
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| 作者姓名： | 曹利钢 汪用瑜 于盛睿 |
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| 作者单位： | 景德镇陶瓷学院机电工程学院,江西,景德镇,333000 |
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| 摘 要： | 高精度直流电流源设计对提高各种工业仪器仪表设备的稳定性具有重要作用和意义。为了达到小步进、低纹波、高精度直流电流源设计要求,提出了一种以AVR单片机为控制核心的直流电流源设计方案,提出设定值前馈补偿和分段积分的控制策略,建立直流电流源控制系统的数学模型。通过matlab仿真实验证明:设定值前馈补偿和分段积分的控制策略相对普通PI控制策略而言,使系统的相对稳定性和快速性得到提高。最后,对系统精度进行实测,结果表明,系统满足设计要求,具有一定的应用前景。
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| 关 键 词： | 直流电流源 AVR单片机 V/I变换 纹波 仿真 |
Design and Implementation of Digital DC Current Source with High Precision |
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| CAO Li-gang,WANG Yong-yu,YU Sheng-rui. Design and Implementation of Digital DC Current Source with High Precision[J]. Instrumentation Technology, 2011, 0(3): 61-65 |
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| Authors: | CAO Li-gang WANG Yong-yu YU Sheng-rui |
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| Affiliation: | CAO Li-gang,WANG Yong-yu,YU Sheng-rui(School of Mechanical and Electronic Engineering,Jingdezhen Ceramic Institute,Jingdezhen 333000,China) |
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| Abstract: | Design of DC current source with high precision is significant for improvement of stability of industrial instrument.In order to satisfy DC current source requirements of small step,low ripple and high precision,the design using AVR microcontroller as the control core of the system is presented.The control strategy of segment integral and feedforward compensation for the setting value is advanced.The mathematical model of the DC current source control system is erected.It is proved with Matlab emulation exp... |
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| Keywords: | DC current source AVR microcontroller V/I transformation ripple emulation |
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