Harmonic Stability Criterion for Modular Multilevel Converter based AC System Connected with multi-paralleled Inverters

2021 IEEE Sustainable Power and Energy Conference (iSPEC) Pub Date : 2021-12-23 DOI:10.1109/iSPEC53008.2021.9735609

Ming Yang, W. Cao, Jianfeng Zhao

{"title":"Harmonic Stability Criterion for Modular Multilevel Converter based AC System Connected with multi-paralleled Inverters","authors":"Ming Yang, W. Cao, Jianfeng Zhao","doi":"10.1109/iSPEC53008.2021.9735609","DOIUrl":null,"url":null,"abstract":"The system of multi-parallel inverters connected with modular multilevel converter is the very suitable for the transmission and utilization of the renewable energy. The harmonic stability is the foundation for the operation of the modular multilevel converter based AC system connected with multi-paralleled inverters. In this paper the harmonic stability criterion for the modular multilevel converter based AC system connected with multi-paralleled inverters is proposed based on global admittance. The different discharge numbers of the submodules correspond to different impedance states. The state impedance model of modular multilevel converter for harmonic stability analysis is proposed. Based on the state impedance model, the impedance model of the modular multilevel converter based AC system connected with multi-paralleled inverters is obtained. Then the harmonic stability for the system is analyzed by the global admittance criterion. An application example is used to verify the effectiveness of the state impedance model of modular multilevel converter and the harmonic stability for the modular multilevel converter based AC system connected with multi-paralleled inverters.","PeriodicalId":417862,"journal":{"name":"2021 IEEE Sustainable Power and Energy Conference (iSPEC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2021-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2021 IEEE Sustainable Power and Energy Conference (iSPEC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/iSPEC53008.2021.9735609","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

The system of multi-parallel inverters connected with modular multilevel converter is the very suitable for the transmission and utilization of the renewable energy. The harmonic stability is the foundation for the operation of the modular multilevel converter based AC system connected with multi-paralleled inverters. In this paper the harmonic stability criterion for the modular multilevel converter based AC system connected with multi-paralleled inverters is proposed based on global admittance. The different discharge numbers of the submodules correspond to different impedance states. The state impedance model of modular multilevel converter for harmonic stability analysis is proposed. Based on the state impedance model, the impedance model of the modular multilevel converter based AC system connected with multi-paralleled inverters is obtained. Then the harmonic stability for the system is analyzed by the global admittance criterion. An application example is used to verify the effectiveness of the state impedance model of modular multilevel converter and the harmonic stability for the modular multilevel converter based AC system connected with multi-paralleled inverters.

查看原文本刊更多论文

多并联逆变器连接的模块化多电平变换器交流系统谐波稳定性判据

多并联逆变器与模块化多电平变换器相连接的系统非常适合于可再生能源的传输和利用。谐波稳定性是多台并联逆变器连接的模块化多电平变换器交流系统正常运行的基础。本文提出了基于全局导纳的模块化多电平变换器与多并联逆变器连接的交流系统谐波稳定判据。子模块不同的放电次数对应不同的阻抗状态。提出了用于谐波稳定性分析的模块化多电平变换器的状态阻抗模型。在状态阻抗模型的基础上，得到了多并联逆变器连接的模块化多电平变换器交流系统的阻抗模型。然后利用全局导纳准则分析了系统的谐波稳定性。应用实例验证了模块化多电平变换器状态阻抗模型的有效性，以及多并联逆变器连接的模块化多电平变换器交流系统谐波稳定性。

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分钟内获得全文求助全文

来源期刊

2021 IEEE Sustainable Power and Energy Conference (iSPEC)

自引率

0.00%

发文量