947 / 2019-04-30 20:11:54

Droop Control for Multi-Terminal Fractional Frequency Transmission System with Offshore Wind Farm Integration

Fractional frequency transmission system (FFTS),droop control,offshore wind farm

Fractional frequency transmission system (FFTS), which is also known as low frequency AC transmission (LFAC), is a very promising transmission scheme for offshore wind farm integration. This paper proposed a droop-based control method for communication-free coordination of converters in FFTS. Firstly, the concept and topology of Multi-terminal FFTS (MT-FFTS) for offshore wind farm integration is introduced. Secondly, the droop control of parallel converters in MT-FFTS is designed. Finally, the droop control is implemented in a MT-FFTS case study in MATLAB/Simulink and the results shows that the proposed droop control performs well.