Research on the Application of Shunt Active Power Filter in Hospital Power Supply System Based on DCT Algorithm

YANG Jian; ZHANG Baogang; LIU Junxing

doi:10.14044/j.1674-1757.pcrpc.2017.02.022

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Research on the Application of Shunt Active Power Filter in Hospital Power Supply System Based on DCT Algorithm

更新时间：2024-09-14

- Research on the Application of Shunt Active Power Filter in Hospital Power Supply System Based on DCT Algorithm
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 38, Issue 2, Pages: 118-121(2017)
- 作者机构：
  
  潍坊市益都中心医院医疗设备维修中心
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2017.02.022
  CLC： TM761
- Published：2017，
- 稿件说明：
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[1]杨健,张宝刚,刘军兴.基于DCT算法的并联有源滤波器在医院供电系统中应用研究[J].电力电容器与无功补偿,2017,38(02):118-121.

YANG JIAN, ZHANG BAOGANG, LIU JUNXING. Research on the Application of Shunt Active Power Filter in Hospital Power Supply System Based on DCT Algorithm. [J]. Power capacitor & reactive power compensation, 2017, 38(2): 118-121.
[1]杨健,张宝刚,刘军兴.基于DCT算法的并联有源滤波器在医院供电系统中应用研究[J].电力电容器与无功补偿,2017,38(02):118-121. DOI： 10.14044/j.1674-1757.pcrpc.2017.02.022.

YANG JIAN, ZHANG BAOGANG, LIU JUNXING. Research on the Application of Shunt Active Power Filter in Hospital Power Supply System Based on DCT Algorithm. [J]. Power capacitor & reactive power compensation, 2017, 38(2): 118-121. DOI： 10.14044/j.1674-1757.pcrpc.2017.02.022.

摘要

针对医院电力系统稳定性要求高的需求

文中提出一种基于并联有源滤波器的无功补偿装置

其主要由负载电路、控制电路和主电路组成。并联有源滤波器的主电路通过电抗器和负载一同联入医院电网中

采用三相电压脉冲宽度调制变流器调节控制。通过离散余弦变换分析电压、电流信号

进一步提高了装置对谐波以及杂波的辨识和抑制能力。实验结果表明

对于不同程度的电压畸变信号

文中所述装置能够进行有效的无功补偿

使得电压信号的整体畸变程度被控制在0.1%以内

从而使负载性能得到保障。

Abstract

In order to satisfy the higher demand stability of hospital power system

this paper proposes a kind of reactive power compensation device based on shunt active power filter. It is mainly composed of the load circuit

control circuit and main circuit

the main circuit of shunt active power filter through the reactor and load together into the hospital network

the three-phase voltage pulse width modulation converter control. The voltage and current signals are analyzed by discrete cosine transform to improve the identification and suppression ability of harmonic and clutter. The experimental results show that the reactive power compensation device can solve the voltage distortion signal of different degree effectively

and after compensation

the overall voltage signal distortion is less than 0.1% so that the load performance is guaranteed.

关键词

无功补偿医院电力系统有源滤波器离散余弦变换控制电路变流器

Keywords

reactive power compensationhospital power systemshunt active power filterdiscrete cosine transformcontrol circuitconverter

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