Study on Offshore Wind Farm Integration Mode and Reactive Power Compensation - Intelligent Computing for Sustainable Energy and Environment - page 192

Fig. 7. bus11 voltage under different in-
tegrate method

Fig. 8. bus 8 voltage under different inte-
grate method

Figure 10 is the voltage of bus 10 in the case of small perturbations. Load on
bus 8 increased 30% at t=1s. The simulation indicated that whether installed
STACOM or not, the voltage of bus 10 appeared small perturbations. In the
case of small perturbations, voltage of bus installed STATCOM drop smaller
amplitude, which improved point of common coupling (PCC) voltage and anti-
disturbance capacity.

Fig. 9. voltage of bus 10 in the case of
fault

Fig. 10. bus 10 voltage under small dis-
turbance

5 Simulation System and Anylysis

This paper analyzed the characteristics of two typical offshore wind farm grid
integration methods HVAC and of VSC-HVDC. On this basis, the IEEE 9 bus
system was improved by adding a large-scale offshore wind farm, comparison is
made under the simulation of HVAC and VSC-HVDC integration method per-
formance. VSC-HVDC integration method has the capacity of fault isolation,
and can provide reactive power to system, which improved fault ride through
capability. STATCOM applied to the wind farm improved the dynamic nature
of the wind farm voltage recovery of fault, also enhanced ability of anti-small