Modulation of Two Parallel-Connected Converter with Reduced Circulating Current

R. Maheshwari, T. Ebel
{"title":"Modulation of Two Parallel-Connected Converter with Reduced Circulating Current","authors":"R. Maheshwari, T. Ebel","doi":"10.1109/PEDES56012.2022.10080192","DOIUrl":null,"url":null,"abstract":"Two parallel-connected converters are preferred to improve ac-side current ripple, thermal management, power capability, maintainability of the system. The two-parallel connected converters may be modulated considering the system as a single three-level (3L) converter. Therefore, the 3L space vector PWM may be used to reduce the ac-side current ripple. This is done by applying the three nearest vectors in an equivalent 3L space vector diagram. However, a high frequency circulating current is present in the ac side which depends on the difference between the common-mode (CM) voltages generated by the individual converters. The CM voltage difference is analyzed in this paper. Using this analysis, a modulation strategy is proposed to reduce the circulating current while applying the three nearest vectors in the equivalent 3L space vector diagram. The paper presents the carrier based implementation of the proposed method which is verified by simulation results.","PeriodicalId":161541,"journal":{"name":"2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2022-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PEDES56012.2022.10080192","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

Two parallel-connected converters are preferred to improve ac-side current ripple, thermal management, power capability, maintainability of the system. The two-parallel connected converters may be modulated considering the system as a single three-level (3L) converter. Therefore, the 3L space vector PWM may be used to reduce the ac-side current ripple. This is done by applying the three nearest vectors in an equivalent 3L space vector diagram. However, a high frequency circulating current is present in the ac side which depends on the difference between the common-mode (CM) voltages generated by the individual converters. The CM voltage difference is analyzed in this paper. Using this analysis, a modulation strategy is proposed to reduce the circulating current while applying the three nearest vectors in the equivalent 3L space vector diagram. The paper presents the carrier based implementation of the proposed method which is verified by simulation results.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
减小循环电流的双并联变换器调制
为了改善系统的交流侧纹波、热管理、功率能力和可维护性,首选两个并联变换器。考虑到系统是一个单三电平(3L)转换器,可以对两个并联转换器进行调制。因此,3L空间矢量PWM可用于减小交流侧电流纹波。这是通过在等效的3L空间矢量图中应用三个最近的矢量来完成的。然而,高频循环电流存在于交流侧,这取决于由单个变流器产生的共模(CM)电压之间的差异。本文对CM电压差进行了分析。在此基础上,提出了一种利用等效3L空间矢量图中的三个最近矢量来减小循环电流的调制策略。文中给出了基于载波的实现方法,仿真结果验证了该方法的有效性。
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 去求助
来源期刊
自引率
0.00%
发文量
0
期刊最新文献
Analytical Series-PID controller design with Smith Predictor approach for analyzing and mitigating the Time Delay Cyber Attack (TDCA) A Novel Fault Detection Index in Smart Distribution System consisting Multi-Microgrids Combined SoC and SoE Estimation of Lithium-ion Battery using Multi-layer Feedforward Neural Network Fault Tolerance of the Neutral Point Clamped based Inverter Driven Nine Phase Induction Machine under Switch Fault Condition Sliding-Mode High-Gain Observer based Position Control for an Electro-Hydraulic Actuator
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1