Performance of out-of-step tripping protection under renewable integration

The Journal of Engineering

Sadegh Azizi¹  Gaoyuan Liu² 

[1] Faculty of Electrical Engineering, Mathematics and Computer Science , Delft University of Technology , Delft , The Netherlands;School of Electrical and Electronic Engineering , University of Manchester , Manchester, England , UK

关键词: relay settings;    wind turbines;    renewable energy sources integration;    specific OST protection scheme;    modified two-area test system;    system transient stability;    Great Britain 29-zone system;    system instability;    renewable integration levels;    global decarbonisation targets;    systematic approach;    out-of-step tripping protection;    dynamic model;    future power systems;    two-area test system;    DIgSILENT PowerFactory;   

DOI  :  10.1049/joe.2018.0180

学科分类：工程和技术（综合）

来源: IET

【 摘 要 】

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.

【 授权许可】

CC BY