Study on reliability assessment of composite generation and transmission system integrated wind farm

Power grid reliability impacts could be significant when a large amount of variable wind generation is integrated with the electric power system. The Sequential Monte Carlo Method are required in system reliability impact assessment in order to consider output of wind power generating units in the intermittent and volatility. The application of optimal power flow leads to the system operation method when the output in wind farms cannot meet the system demand, or other units fault system operation method aiming at the least load shedding. In the probabilistic production simulation the time varying characteristic of the load and the wind farm is retained, considering the influence of the traditional units starting and stopping to the key system, to get the results of the reliability simulation production. The IEEE Reliability Test System is utilized to verify the proposed method is correct and effective.