Cheng Qiming, Tan Fengren, Gao Jie, Zhang Yu, Yu Deqing
{"title":"The separation of positive and negative sequence component based on SOGI and cascade DSC and its application at unbalanced PWM rectifier","authors":"Cheng Qiming, Tan Fengren, Gao Jie, Zhang Yu, Yu Deqing","doi":"10.1109/CCDC.2017.7978204","DOIUrl":null,"url":null,"abstract":"The second-order generalized integrator (SOGI) and cascade delayed signal cancellation (DSC) have been used respectively in the separation of positive and negative component. But they have their own disadvantages. In order to extract grid's positive and negative sequence fundamental component from unbalanced power system, the strategy of second-order generalized integrator eliminating higher harmonic and cascade delayed signal cancellation eliminating the specific frequency harmonic has been put forward in this article. It can quickly and accurately separate the positive and negative sequence fundamental component of the grid While grid voltage is distortion, symmetrical fault and asymmetric fault cases. Then, this new method is applied to unbalanced PWM rectifier.","PeriodicalId":6588,"journal":{"name":"2017 29th Chinese Control And Decision Conference (CCDC)","volume":"14 1","pages":"5804-5808"},"PeriodicalIF":0.0000,"publicationDate":"2017-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2017 29th Chinese Control And Decision Conference (CCDC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CCDC.2017.7978204","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
The second-order generalized integrator (SOGI) and cascade delayed signal cancellation (DSC) have been used respectively in the separation of positive and negative component. But they have their own disadvantages. In order to extract grid's positive and negative sequence fundamental component from unbalanced power system, the strategy of second-order generalized integrator eliminating higher harmonic and cascade delayed signal cancellation eliminating the specific frequency harmonic has been put forward in this article. It can quickly and accurately separate the positive and negative sequence fundamental component of the grid While grid voltage is distortion, symmetrical fault and asymmetric fault cases. Then, this new method is applied to unbalanced PWM rectifier.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
