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针对电力系统不确定性潮流分析中,存在的计算精度差及计算复杂度过高的问题,提出基于区间优化的电力系统不确定性潮流仿射计算方法.首先,可针对潮流分析数据不确定性,提出基于仿射计算的可靠潮流分析方法,对不确定数据进行组合近似;其次,考虑发电机总线电压控制策略,并借助优化模型与互补约束,提高功率流问题的区间上下界限计算可靠性;最后,通过求解双确定优化问题并与数值计算及仿射算法结果对比显示,所提方法是有效性,能够提高电力系统的潮流分析精度和降低计算复杂度.“,”Aiming at the problem of low accuracy and high computational complexity in the analysis of uncertainty in power system, a method for calculating the uncertainty of power system based on interval optimization is proposed. Firstly, a reliable power flow analysis method based on affine calculation is proposed, which is based on the analysis of the trend of the data; Secondly, the voltage control strategy of generator bus is considered, and the reliability is improved by the optimization model and the complementary constraints; Finally, the results show that the proposed method is effective and can improve the accuracy of the power system and reduce the computational complexity.