Performance of out‐of‐step tripping protection under renewable integration. Issue 15 (29th August 2018)

• Record Type: Journal Article
• Authors: Liu, Gaoyuan; Azizi, Sadegh; Sun, Mingyu; Popov, Marjan; Terzija, Vladimir
• Is Part Of: Journal of engineering. Volume 2018:Issue 15(2018)
• Page Start: 1216
• Page End: 1222
• Publication Date: 2018-08-29
• Subjects: wind power plants -- wind turbines -- relay protection -- power system transient stability -- power grids -- power generation protection; Great Britain 29‐zone system -- specific OST protection scheme -- out‐of‐step tripping protection -- future power systems -- global decarbonisation targets -- renewable energy sources integration -- system transient stability -- system instability -- two‐area test system -- renewable integration levels -- modified two‐area test system -- wind turbines -- dynamic model -- systematic approach -- relay settings -- DIgSILENT PowerFactory; Engineering -- Periodicals; Engineering; Electronic journals; Periodicals; 620.005
• DOI: 10.1049/joe.2018.0180
• Languages: English
• ISSNs: 2051-3305

Abstract

Abstract : In future power systems, highly increased renewable integration is expected to meet global decarbonisation targets. The risks and uncertainties brought about by renewable integration will challenge system stability. This study analyses the impact of the increased level of renewable energy sources integration on system transient stability and out‐of‐step tripping (OST) protection. To this end, the performance of OST protection is assessed in terms of the ability to prevent system instability under different contingencies. A modified two‐area test system and Great Britain (GB) 29‐zone system integrated with a dynamic model of wind turbines are selected as test systems. A systematic approach is adopted to design a specific OST protection scheme for each test system and to obtain suitable relay settings. An extensive number of simulation studies are carried out using DIgSILENT PowerFactory to assess the performance of the designed schemes under different renewable integration levels. Conclusions are made based on the obtained results, which all imply that revision of the existing OST protection scheme will be inevitably needed.