A cascaded inverter based hybrid shunt active filter to improve the power quality of 415V 50Hz four wire distribution systems

新能源 Pub Date : 2014-12-01 DOI:10.1109/NCETNRESEM.2014.7088767

S. Sellakumar, M. Vijayakumar

{"title":"A cascaded inverter based hybrid shunt active filter to improve the power quality of 415V 50Hz four wire distribution systems","authors":"S. Sellakumar, M. Vijayakumar","doi":"10.1109/NCETNRESEM.2014.7088767","DOIUrl":null,"url":null,"abstract":"There are two approaches to the mitigation of power quality problems. The first approach is called load conditioning, which ensures that the equipment is less sensitive to power disturbances, allowing the operation even under significant voltage distortion. The other solution is to install line conditioning systems that suppress or counteracts the power system disturbances. A flexible and versatile solution to voltage quality problems is offered by active power filters AF. Currently they are based on PWM converters and connect to low and medium voltage distribution system in shunt or in series. Shunt Active Power Filters (SAPF) operate as a controllable current source. The Shunt AF filters can be used in multilevel mode to enhance the power quality. Cascaded multilevel Inverter is used as Shunt Active Power Filter to compensate the voltage sag during the presence of non-linear loads with reduced harmonics. Five level and seven level cascaded H-bridge multilevel inverter are used as SAPF. The number of levels in cascaded multilevel inverter is increased to reduce THD. The simulation is carried out in MATLAB/Simulink platform and the simulation results are presented in this paper.","PeriodicalId":71630,"journal":{"name":"新能源","volume":"42 1","pages":"200-203"},"PeriodicalIF":0.0000,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"新能源","FirstCategoryId":"1087","ListUrlMain":"https://doi.org/10.1109/NCETNRESEM.2014.7088767","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

Abstract

There are two approaches to the mitigation of power quality problems. The first approach is called load conditioning, which ensures that the equipment is less sensitive to power disturbances, allowing the operation even under significant voltage distortion. The other solution is to install line conditioning systems that suppress or counteracts the power system disturbances. A flexible and versatile solution to voltage quality problems is offered by active power filters AF. Currently they are based on PWM converters and connect to low and medium voltage distribution system in shunt or in series. Shunt Active Power Filters (SAPF) operate as a controllable current source. The Shunt AF filters can be used in multilevel mode to enhance the power quality. Cascaded multilevel Inverter is used as Shunt Active Power Filter to compensate the voltage sag during the presence of non-linear loads with reduced harmonics. Five level and seven level cascaded H-bridge multilevel inverter are used as SAPF. The number of levels in cascaded multilevel inverter is increased to reduce THD. The simulation is carried out in MATLAB/Simulink platform and the simulation results are presented in this paper.

查看原文本刊更多论文

一种基于级联逆变器的混合并联有源滤波器，改善415V 50Hz四线配电系统的电能质量

有两种方法可以缓解电能质量问题。第一种方法被称为负载调节，它确保设备对电力干扰不太敏感，即使在显著的电压畸变下也能运行。另一种解决方案是安装抑制或抵消电力系统干扰的线路调节系统。有源电力滤波器为解决电压质量问题提供了一种灵活而通用的解决方案。目前它们基于PWM变换器，并以并联或串联的方式连接到低压和中压配电系统。并联有源电源滤波器(SAPF)作为可控电流源工作。并联自动对焦滤波器可用于多电平模式，以提高电能质量。采用级联多电平逆变器作为并联有源滤波器，补偿非线性负载时的电压暂降，降低谐波。采用五电平和七电平级联h桥多电平逆变器作为SAPF。通过增加级联多电平逆变器的电平数来降低THD。在MATLAB/Simulink平台上进行了仿真，并给出了仿真结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

新能源

自引率

0.00%

发文量

1039