采用复仿射描述DG出力和状态变量的不确定性,建立复仿射迭代形式的Ybus高斯区间潮流方程.提出将同类噪声元合并的处理方法,减少迭代过程中增加的噪声元数量,兼顾区间潮流计算的效率和精度.提出从复仿射计算电压幅值区间值和相角区间值的方法.IEEE 33节点系统算例验证了所提方法的有效性和准确性.%An interval power-flow equation based on the complex affine Ybus-Gaussian iteration is established,which applies the complex affine to describe the uncertainties of DG outputs and state variables.With the consideration of both efficiency and accuracy of interval power-flow calculation,similar noise elements are merged to suppress the noise element increase during the iteration.The complex affine is adopted to calculate the intervals of voltage amplitude and phase-angle.IEEE 33-bus system is applied to verify the effectiveness and correctness of the proposed method.
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