Transient stability analysis of grid connected wind turbine generator system considering multi-mass shaft modeling

In order to investigate the impacts of the integration of wind farms into utilities networks, it is necessary to analyze the transient characteristic of wind turbine generator system (WTGS). In most of the cases, the simple one mass lumped model is considered for stability analysis of wind generator. It is not analyzed yet which order shaft model is sufficient for transient stability analysis of WTGS. In this study, a detailed transient analysis has been done with the consideration of two mass and three mass shaft models of WTGS. Finally, it is concluded that two mass shaft model is sufficient enough for transient stability analysis of grid connected WTGS. Copyright © Taylor and Francis Group, LLC

Transient stability analysis of wind generator system with the consideration of multi-mass shaft model

In order to investigate the impacts of the integration of wind farms into utilities networks, it is necessary to analyze the transient characteristic of wind power generation system (WPGS). In most of the cases, it is seen that the simple one-mass lumped model is considered for transient stability analysis of wind generator. But for the sake of exact analysis of transient stability of WPGS, it is needed to consider multi-mass shaft system model. In this study a detailed analysis has been done with the consideration of two-mass shaft system model of wind generator system when a severe network disturbance occurs in power system. Moreover, an online logical pitch controller has been proposed, which can enhance the transient performance of WPGS as well as maintain output power of wind generator at rated level when wind speed is above the rated speed. © 2005 IEEE

Fault Analysis of Wind Turbine Generator System Considering Six-Mass Drive Train Model

This paper analyzes different types of symmetrical and unsymmetrical fault of grid connected wind turbine generator system (WTGS), where the six-mass drive train model is considered. The unsuccessful re-closing due to permanent fault is also considered. Moreover, the blade-shaft stresses of the six-mass drive train model of WTGS are also analysed for both successful and unsuccessful re-closing