Simultaneous Utilization of the Self-Capabilities of PMSG-Based Wind Turbine for Power Smoothing

This paper presents the implementation of a complete type-IV wind turbine generator (WTG) model connected to the grid via a full-scale frequency converter system. The converter system, consisting of a rectifier (machine-side converter), a DC-link chopper, and an inverter (grid-side converter), utilizes conventional current vector control for regulating the output power and AC voltage of the WTG, as well as reactive power and voltage at the DC bus. To address the issue of fast fluctuations in the wind power output when integrating WTG into the power system, a simultaneous control strategy for DC-link voltage, rotor speed, and pitch angle controls is implemented using a Gaussian smoothing function, and its effectiveness is assessed using PSCAD/EMTDC simulation tool.