Application of an Improved Method of Current Tracking Control in APF

JIA Hong-fang; GAO Xue-jun; CHENG Xiang

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Application of an Improved Method of Current Tracking Control in APF

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- Application of an Improved Method of Current Tracking Control in APF
- High VoltageApparatus Issue 1, Pages: 70-72(2006)
- 作者机构：
  
  1. 三峡大学电气信息学院
  2. 三峡大学电气信息学院湖北宜昌 443002
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM76;TN713
- Published：2006
- 稿件说明：
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[1]贾红芳,高学军,程翔.一种改进的电流控制方法在有源电力滤波器中的应用[J].高压电器,2006(01):70-72.

JIA Hong-fang, GAO Xue-jun, CHENG Xiang. Application of an Improved Method of Current Tracking Control in APF[J]. High voltageapparatus, 2006, (1): 70-72.
[1]贾红芳,高学军,程翔.一种改进的电流控制方法在有源电力滤波器中的应用[J].高压电器,2006(01):70-72. DOI：

JIA Hong-fang, GAO Xue-jun, CHENG Xiang. Application of an Improved Method of Current Tracking Control in APF[J]. High voltageapparatus, 2006, (1): 70-72. DOI：

摘要

给出了并联型有源电力滤波器系统简化数学模型

详细探讨了有源电力滤波器中常采用的三角波脉宽调制电流控制方法

在此基础上提出了一种改进的三角波脉宽调制电流控制方法。通过理论推导得出

在传统控制方法的输出指令电压中增加了一个与电源电压瞬时值成正比的量

提高了变流器输出电压的准确性

使APF实际输出电流能够精确地跟踪指令电流的变化。论文给出了这两种电流控制方法的 Simulink仿真结果

通过比较仿真结果验证了改进的三角波脉宽调制电流控制方法在谐波补偿效果和电流控制精度方面更有优越性。

Abstract

This paper presents a simplified mathematic model of parallel APF

and an improved method of current control with triangle-wave pulse-width modulation. Compared with traditional method

a value proportional to source voltage is added to the reference voltage

which improves the accuracy of APF output voltage and makes the output current following the reference current precisely. The simulation results show that in two aspects: harmonic compensation and precision of current control

the improved current control method is better than the traditional one.

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