Abstract:The impact load of Fushun area accounts for a large proportion of the total load in the region, and when the impact characteristic of the total load is obvious, it may cause the continuous oscillation of the system frequency and the swing of the voltage, which is not conducive to the safe and stable operation of the power grid. Therefore, this paper explores how to improve the accuracy of short-term load forecasting in regional power grid and related practice, improving the accuracy of impact load forecasting and preprocessing, so as to expect reasonable economic dispatch, reduce production cost and ensure the safety of power grid.