Study on New Energy AC/DC Hybrid Grid Power Flow Optimization Based on Opportunity Constraints

In the optimal power flow problem of AC-DC hybrid power system including wind power and other new energy sources, if the probability distribution information of uncertain variables can be obtained, the stochastic optimization method can be used to model the optimal power flow problem. In this paper, the optimization problem of AC-DC hybrid power system with wind power is studied. Under the condition of known probability distribution of uncertain variables, the optimal power flow model considering N-1 safety criterion is established based on the chance constraint optimization theory. The model and method proposed in this paper are verified by simulation in a hybrid AC DC power system modified by IEEE-14 node system.