{"title":"Dual-Channel Subsynchronous Damping Control based on Voltage Source Converter Excitation System","authors":"Jiancheng Zhang, Kuayu Wu, Hongtao Xiong, Boliang Lou","doi":"10.1109/ISGT-Asia.2019.8881258","DOIUrl":null,"url":null,"abstract":"A novel dual-channel damping control based on voltage source converter (VSC) excitation system is put forward in this paper to suppress subsynchronous oscillation for turbine generators. The proposed control is a combination of both supplementary excitation damping control (SEDC) and supplementary subsynchronous damping control (SSDC) but only implemented in one device. A small perturbation linearized model considering the dual-channel damping is built and the complex torque coefficients method is adopted to analyze the damping characteristic of the proposed control. Based on the analytical analysis, a decoupling tuning method for the dual-channel damping control is proposed. The effectiveness and superiority of the proposed subsynchronous damping control are verified through PSCAD simulation.","PeriodicalId":257974,"journal":{"name":"2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISGT-Asia.2019.8881258","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
A novel dual-channel damping control based on voltage source converter (VSC) excitation system is put forward in this paper to suppress subsynchronous oscillation for turbine generators. The proposed control is a combination of both supplementary excitation damping control (SEDC) and supplementary subsynchronous damping control (SSDC) but only implemented in one device. A small perturbation linearized model considering the dual-channel damping is built and the complex torque coefficients method is adopted to analyze the damping characteristic of the proposed control. Based on the analytical analysis, a decoupling tuning method for the dual-channel damping control is proposed. The effectiveness and superiority of the proposed subsynchronous damping control are verified through PSCAD simulation.