Secure operation of power system with high wind penetration

With unprecedented growth of wind power stations being connected to the grids all over the world, the running of the power system becomes more and more challenging. In order to operate power system securely, not only its conditions at a given time should be examined, but also its projected conditions with varying amounts of wind generation should be checked. This task can be performed using proposed Wind generation Secure Level Assessment Tool (WSAT) based on stability analysis of transfers between wind power generation and conventional power generation on the power system. In real-time (RT) application WSAT obtains modified power flow snap-shot file from SCADA/EMS and runs stability assessment of mentioned transfers. When one of the stability criteria thresholds is reached, the corresponding wind generation with agreed margin is considered as wind generation limit according to this criterion. WSAT can also make wind generation limit forecasts (FC) for next 24 hours using generation schedule from Reserve constrained unit commitment program and updates from Trader - most probable dispatch at a given instant of time.