F. Wilches-Bernal, C. Lackner, J. Chow, J. Sanchez-Gasca
{"title":"Small-signal analysis of power system swing modes as affected by wind turbine-generators","authors":"F. Wilches-Bernal, C. Lackner, J. Chow, J. Sanchez-Gasca","doi":"10.1109/PECI.2016.7459228","DOIUrl":null,"url":null,"abstract":"The power electronic grid interface of converter-based energy systems such as wind turbine-generators (WTGs) is modifying the dynamics governing power systems. For a fundamental understanding of the impact of power electronic interface on the electromechanical modes, that is, the synchronizing and damping torque on synchronous machines, this paper provides a small-signal analysis about the impact of WTGs on the local mode of a single-machine infinite-bus (SMIB) system. The main contribution is the incorporation of the WTG voltage control into the modal decomposition diagram of Heffron-Phillips and deMello-Concordia. Sensitivity coefficients are developed for the WTG voltage control loop and their impact on the real and imaginary parts of the local mode is illustrated with an example.","PeriodicalId":359438,"journal":{"name":"2016 IEEE Power and Energy Conference at Illinois (PECI)","volume":"732 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2016-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2016 IEEE Power and Energy Conference at Illinois (PECI)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PECI.2016.7459228","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 4
Abstract
The power electronic grid interface of converter-based energy systems such as wind turbine-generators (WTGs) is modifying the dynamics governing power systems. For a fundamental understanding of the impact of power electronic interface on the electromechanical modes, that is, the synchronizing and damping torque on synchronous machines, this paper provides a small-signal analysis about the impact of WTGs on the local mode of a single-machine infinite-bus (SMIB) system. The main contribution is the incorporation of the WTG voltage control into the modal decomposition diagram of Heffron-Phillips and deMello-Concordia. Sensitivity coefficients are developed for the WTG voltage control loop and their impact on the real and imaginary parts of the local mode is illustrated with an example.