Research on Transient Stability Analysis of Win d-Photovoltaic-Thermal-bundled Power Transmitted System

Wind power, photovoltaic power is the main way of new energy power generation in China. Bundling the three of the wind, photovoltaic, thermal power and then transmitting by AC/DC hybrid system is an important way to achieve the power transmission of new energy bases in my country. First, the typical model of the wind-p hotovoltaic-thermal-bundled power is established based on PSD-BPA. After, the effects of wind, photovoltaic and thermal differential ratio on system transient stability are analyzed using equal area criterion, and it is concluded that with the increase of the exhibition, the transient stability of the system is enhanced. Finally, it is giving a simulating analysis and conclusions to wind-photovoltaic-thermal-bundled power using the PSD-BPA. The results indicates that when the load and the total output of the power plant remain unchanged, with the increase of the proportion of wind and photovoltaic power output, the transient stability of the system will be enhanced, and when the total out put of wind and photovoltaic power is constant, increasing the proportion of wind power is more conducive to the enhancement of the transient stability of the system.