Real-time simulation on wind power system dynamics incorporating STATCOM

Abstract

Based on an advanced distributed real-time platform named Real-Time Laboratory (RT-LAB), the impacts of the static synchronous compensator (STATCOM) on wind power system dynamics is studied in this paper. Firstly, a small-scale wind farm model based on squirrel-cage induction generator (SCIG) is built in MATLAB TM /Simulink environment. This model is then rebuilt to be suitable for the real-time operation mode in RT-LAB environment in terms of the operating requirements of RT-LAB. The corresponding comparisons of simulation results carried out in RT-LAB and MATLAB TM /Simulink environments respectively demonstrate that it is applicable for wind power system to implement realtime simulation in RT-LAB environment. Finally, the STATCOM device is connected to the power grid. And the comparisons of real-time simulation results of the wind power system with and without STATCOM connected illustrate that the integration of STATCOM can improve the voltage stability of the system. Index Terms-Real-time Laboratory(RT-LAB), squirrel-cage induction generator(SCIG), static synchronous compensator (STATCOM), voltage stability.

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“…RT-LAB allows designing and modelling of the system under Matlab/Simulink environment with respect to some rules, and performing automatic code generation, then a transfer of this Simulink model to the Field Programmable Gate Array (FPGA) for implementation. Although, to make the model suitable for the real-time operation mode in RT-LAB, the model built in MATLAB/Simulink environment needs some modifications [23], [24]. RT-LAB is characterized with its many target processors and can divide a complex model into simple subsystems, then it implements parallel operations in multi-processors in order to accelerate the computing speed, which is the objective of real-time simulation 3 [24].…”