Wind Turbines Cluster System Composed of Fixed Speed Wind Generators Controlled by Cluster Converter based VSC-HVDC System

抄録

This paper presents wind turbines cluster system composed of Squirrel Cage Induction Generators (SCIGs) controlled by cluster converter based VSC-HVDC System. The wind turbine cluster systems (multiple clusters) are installed in an offshore wind farm and connected to onshore system through a Voltage Source Converter based High Voltage Direct Current (VSC-HVDC) transmission line. A control scheme of cluster converter and VSC-HVDC converter systems is developed so that power production by SCIGs can be delivered to the onshore system effectively. In this study dynamic behavior of the wind turbines has been investigated by simulation study performed by using PSCAD/EMTDC for fluctuating wind speed and short circuit fault. Simulation results show that the proposed cluster system composed of SCIGs has high performance under transient and steady state conditions.