A generalized over-modulation methodology for current regulated three-phase voltage source converters

Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting. Pub Date : 2004-11-01 DOI:10.1109/IAS.2004.1348784

G. Dong, O. Ojo

{"title":"A generalized over-modulation methodology for current regulated three-phase voltage source converters","authors":"G. Dong, O. Ojo","doi":"10.1109/IAS.2004.1348784","DOIUrl":null,"url":null,"abstract":"In most motor drive and utility applications, three-phase voltage source converters are required to operate in the over-modulation regions to improve steady-state capabilities and dynamic system performance and transit from the linear modulation region into the overmodulation and six-step modes seamlessly. This work presents a closed-loop current regulation concept for converter fed loads using the generalized space vector (GSVPWM) and generalized discontinuous carrier-based pulse-width modulation (GDPWM) schemes which operates effectively in the linear and overmodulation regions. The harmonic currents generated in these operational modes which naturally degrade the classical PI regulators are eliminated from the controller path by an open-loop harmonic current estimation scheme to ensure current regulation in the synchronous reference frame. The realization of the proposed modulation schemes and current regulation concept are validated by steady-state experimental results and dynamic response of a current regulated inverter feeding an impedance load.","PeriodicalId":131410,"journal":{"name":"Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting.","volume":"57 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2004-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IAS.2004.1348784","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 6

Abstract

In most motor drive and utility applications, three-phase voltage source converters are required to operate in the over-modulation regions to improve steady-state capabilities and dynamic system performance and transit from the linear modulation region into the overmodulation and six-step modes seamlessly. This work presents a closed-loop current regulation concept for converter fed loads using the generalized space vector (GSVPWM) and generalized discontinuous carrier-based pulse-width modulation (GDPWM) schemes which operates effectively in the linear and overmodulation regions. The harmonic currents generated in these operational modes which naturally degrade the classical PI regulators are eliminated from the controller path by an open-loop harmonic current estimation scheme to ensure current regulation in the synchronous reference frame. The realization of the proposed modulation schemes and current regulation concept are validated by steady-state experimental results and dynamic response of a current regulated inverter feeding an impedance load.

查看原文本刊更多论文

电流调节三相电压源变换器的广义过调制方法

在大多数电机驱动和公用事业应用中，三相电压源变换器需要在过调制区域工作，以提高稳态能力和动态系统性能，并从线性调制区域无缝过渡到过调制和六步模式。本文提出了一种基于广义空间矢量(GSVPWM)和基于广义不连续载波的脉宽调制(GDPWM)方案的变换器负载闭环电流调节概念，该方案在线性和过调制区域有效工作。在这些工作模式下产生的谐波电流自然地降低了经典PI调节器，通过开环谐波电流估计方案从控制器路径中消除，以确保同步参考框架中的电流调节。稳态实验结果和电流调节逆变器馈入阻抗负载的动态响应验证了所提出的调制方案和电流调节概念的实现。

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

Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting.

自引率

0.00%

发文量