Impacts of turbulence condition on available wind power of wind turbine generator for AGC

摘要

To achieve automatic generation control (AGC), the constant active power control is required for wind turbine generators (WTG). The accurate estimation of available wind power (AWP) is a prerequisite for WTGs to effectively participate in AGC and enhance the performance of AGC. In such a case, the maximum power point tracking (MPPT) control is not adopted and accordingly the MPPT principle cannot be utilized to estimate the AWP. Therefore, it is necessary to explore the factors influencing the AWP of WTGs undertaking AGC and investigate their influence mechanism so that the AWP can be accurately estimated. Since the output electric power of WTG is originated from wind energy, wind speed and its fluctuation are the factors that exert a significant influence on AWP. Therefore, in this paper, the impact of turbulence condition (including mean wind speed, turbulence intensity and turbulence frequency) on AWP and the influence mechanism are investigated by numerical simulation based on MATLAB/Simulink This study will provide the foundation for the accurate estimation of AWP.