Open AccessContinuous provision of synthetic inertia with wind turbines: implications for the wind turbine and for the grid
Author(s) -
Gloe Arne,
Jauch Clemens,
Craciun Bogdan,
Winkelmann Jörg
Publication year - 2019
Publication title -
iet renewable power generation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.005
H-Index - 76
ISSN - 1752-1424
DOI - 10.1049/iet-rpg.2018.5263
Subject(s) - inertia , wind power , turbine , grid , control theory (sociology) , variable (mathematics) , controller (irrigation) , renewable energy , computer science , constant (computer programming) , control engineering , automotive engineering , engineering , electrical engineering , control (management) , mechanical engineering , mathematics , physics , classical mechanics , mathematical analysis , agronomy , geometry , artificial intelligence , biology , programming language
In future power systems with little system inertia, grid operators will require the provision of synthetic inertia (SI) from renewable energy sources. Unlike today, grid operators may require continuous provision of SI. This can lead to an unwanted disconnection of wind turbine generators (WTGs) from the grid, and has the potential to cause a significant decrease of the energy yield and financial losses for the turbine operator. In order to avoid such situations a controller is proposed, which interprets the grid codes to the benefit of all parties involved. This can be achieved by a variable inertia constant, which changes with the operating point of the WTG. In this study, the behaviour of the variable inertia constant controller is described, assessed and verified with time domain simulations.