Abstract:The wind’s randomness and volatility bring great difficulty to the wind accommodation and grid security with the gradually increasing wind power, and network loss’s negligence in the dispatch model may lead generating power shortage. Based on these issues the intra-day economic dispatch rolling revision model based on the net loss iteration was established. The rolling revision model regulated the scheduling power according to the latest forecast information. The network losses was considered in the loss iterative process, then the economic dispatch process was done. The AC power flow was calculated and the line flow security was checked in each iteration. Afterwards, the system losses were updated.Moreover, the regulation strategy based on the relaxation unit power limitation and adding additional constraint was built to solve non-convergence the in the dispatch process and line overload problem. Finally, a numerical example simulation verified the effectiveness and correctness of the proposed model.