Abstract
This paper presents a thorough methodology for the voltage
assessment of pilot offshore wind project in Shandong province, China.
The results presented in this paper can be considered as the milestone
of the offshore wind research in Shandong since there is still no grid
codes for offshore wind power plant grid connection in the local
electrical power grid. It mainly consists of three parts. In the first
part, a detailed model of the offshore wind farm created in the
DIgSILENT PowerFacotry simulation platform is presented, including wind
turbines, power converters, transformers, submarine cables and relevant
control schemes. In the second part, nonlinear time-domain simulations
were performed to analyse the wind farm’s active power, reactive power,
and voltage conditions under different wind scenarios. Based on the
simulations results, a dynamic reactive power compensation system was
proposed, and the consequence of the reactive power compensation was
also demonstrated using nonlinear time-domain simulations.
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