动态电压恢复器分数阶控制策略的研究  

Research on Fractional Order Control Strategy of Dynamic Voltage Restorer

作　　者：许斌斌[1] 梁贵书[1] 

机构地区：[1]华北电力大学(保定)电力工程系,河北保定071003

出　　处：《控制工程期刊（中英文版）》2013年第3期184-190,共7页Scientific Journal of Control Engineering

基　　金：变电站关键设备分数阶无源宽频建模方法的研究,国家自然科学基金项目,项目号：511770482.分数阶无源宽频宏模型建立方法的研究,2011年中央高校基金项目,项目号：11MG36

摘　　要：为进一步改善电能质量，提高动态电压恢复器（DVR）的动态响应特性，提出一种基于分数阶PD控制器的控制策略。对比几种离散化近似方法后，选取其中逼近效果较好的方法对分数阶微积分算子进行离散化近似，从而实现动态电压恢复器的分数阶PD控制策略。经仿真验证，与基于传统PD控制器的控制策略相比，所提出的分数阶PD控制策略在动态响应速度和超调量方面具有较大优势。To improve the power quality and dynamic response characteristics of the dynamic voltage restorer, a control strategy based on fractional order PD controller was proposed. A discrete approximation method was adopted after contrast of several discrete methods. The fractional order PD control strategy of a dynamic voltage restorer was achieved by discrete approximation to fractional calculus operator. Compared with the conventional PD controller, as the simulation results show, the proposed control method has greater advantages in terms of the dynamic response speed and overshoot.

关 键 词：动态电压恢复器 分数阶PD 离散化近似 控制策略 

分 类 号：TP393.07[自动化与计算机技术—计算机应用技术]