配电网模糊匹配潮流状态估计方法分析

用模糊集合理地表示配电网的量测信息，基于量测配置结构、辐射状的配电网络和量测信息模型，提出了模糊匹配潮流状态估计方法。该方法具有抗差性的加权最小绝对值(WLAV)状态估计方法应用于配电网的等效形式。考虑到伪量测的模糊约束，所提出的方法得到的状态估计解虽不具有最优但具有满意的WLAV估计意义。采用基于模糊线性规划的前推回代潮流算法求解模糊匹配潮流，该求解过程物理意义清晰、编程实现简单，克服了求解WLAV估计方法计算量大的缺点。实际算例结果验证了所提出的方法的合理性和适用性。

Analysis of Distribution Fuzzy Matching Power Flow State Estimation Method

The measurement information of distribution system is reasonably expressed with fuzzy set, and based on the measurement device configuration, the radial structure and the measurement information model of distribution network, a novel fuzzy matching power flow (FMPF) is proposed, which has the equivalent expressions of robust WLAV estimation method applied to the distribution system. Considering the fuzzy restrictions of the pseudo measurement, the obtained results from the proposed method have no optimal but satisfactory WLAV estimation meaning. Finally, the back/forward sweep method based on the fuzzy linear programming is adopted to solve the FMPF, which has such advantages that its physical meaning is clear and programming implementation is convenient, and overcomes the disadvantage of large computation burdens of WLAV. The results of the practical example show the rationality and applicability of the proposed method.