杨旻, 王佳昕, 章家维, et al. AC Feasibility Restoration Algorithm of Power System Scheduling Model[J]. 2026, 46(1): 49-60. DOI: 10.13334/j.0258-8013.pcsee.241538.
Due to the high proportion of power electronic devices integrated into the grid
the reactive voltage stability issue in new power systems has become increasingly prominent. However
most dispatch models that consider reactive voltage suffer from approximation errors
making their optimal solutions fail to satisfy the AC power flow equations. To obtain an AC feasible solution that simultaneously meets the AC power flow equations and feasibility constraints
this paper proposes a general AC feasibility restoration algorithm. This algorithm can derive an AC feasible solution that is closest to the given dispatch solution by making minor adjustments to variables such as the active power output and reactive power output of the units based on the dispatch solution. For DC dispatch solutions that do not include reactive voltage
the method establishes an AC power flow restoration model. After obtaining the best matching AC state variables
it performs power flow calculations to ensure the solution satisfies the AC power flow equations. For AC power flows that do not meet feasibility constraints
the method establishes a feasibility constraint restoration model to ensure they meet the feasibility constraints. Finally
simulations are conducted based on the IEEE-30 and IEEE-118 systems for 8 760 hourly period covering the entire year
demonstrating the effectiveness of the proposed method.