Control of the matrix converter based WECS for fault ride-through enhancement

Due to steadily increased in wind power penetration, regulatory standards for grid interconnection have evolved to require that wind generation systems ride-through disturbances such as faults and support the grid during such events. Keeping the converter online during and after short-circuit faults, and guaranteeing the actual standards of the converter connected to the grid, is becoming a very critical issue. From these goals, in this paper, an optimal control of matrix converter (MC) based wind turbine have been developed, where adaptive fuzzy logic controls along with improved SVPWM switching have been used extensively to ensure that current levels remain within design limits, even at greatly reduced voltage levels, thus enhancing the fault ride-through capability.