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为促进径流式小水电与区域配电网协调发展,本文提出一种考虑自适应无功控制的径流式小水电最优接纳能力计算方法。为兼顾配电网运行的经济性和电能质量,考虑以运行成本、电压偏移和网损综合最优为目标,采用多状态模型构建基于机会约束规划的多目标模型。针对接入点电压越限问题,提出自适应无功控制策略。利用基于精英策略的非劣分类遗传算法II(NSGA-II)求解多目标模型,并采用基于信息熵的序数偏好法(TOPSIS)从Pareto解集中选取最优方案,最后IEEE-33节点系统的计算结果验证了所提方法的有效性。
In order to promote the coordinated development of run-of-mill SHP and regional distribution network, this paper presents a method to calculate optimal receiving capacity of radial SHP considering adaptive reactive power control. In order to take into account the economy and power quality of distribution network operation, the multi-objective model based on opportunity-constrained programming is constructed based on the multi-state model with the objective of optimizing the operation cost, voltage offset and network loss. Aiming at the problem of overvoltage of access point, an adaptive reactive control strategy is proposed. The multi-objective model is solved by non-inferiority classification genetic algorithm II (NSGA-II) based on elitist strategy, and the optimal scheme is selected from the Pareto solution set by the ordinal preference method based on information entropy (TOPSIS). Finally, the calculation of IEEE-33 node system The result verifies the effectiveness of the proposed method.