Analysis of a commercial wind farm in Taiwan Part II: Different current-limit reactors and load tap changers on system performance

This paper presents the effects of installing variable current-limit reactors (CLRs) and adjusting load tap changers (LTCs) on performance of a commercial wind farm in Taiwan using computer simulations. The companion paper in Part I demonstrates the field measured results, simulation model, and simulation results of the studied Jang-Bin wind farm with twenty-three 2-MW DFIG-type wind turbine generators connected to the utility system through a 23/161-kV 60-MVA step-up main transformer from six feeders. Six CLRs, that were originally designed to limit short-circuit currents under faulted conditions, are connected in series with the six feeders. The LTCs of the main transformer are used to adjust/regulate the secondary-side voltage at the 23-kV bus. Some simulated steady-state and transient results of the studied wind farm with variable values of the proposed CLRs and LTCs are analyzed and compared.