考虑自适应无功控制的小水电最优接纳能力研究

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。

Research of Optimal Hosting Capacity of Small Hydropower by Considering Adaptive Reactive Power Control

In order to promote the coordinated development of runoff small hydropower and the regional distribution network, a method for calculating the optimal hosting capacity of runoff small hydropower is presented by considering adaptive reactive power control in this paper. For improving the economy and power quality of the distribution network, by taking the integrated optimization of running costs, voltage offset and power loss as the objective, a multi\|objective model based on chance constrained programming is built by applying multi\|state model. An adaptive control strategy of reactive power is used to solve the voltage regulation problem of grid\|connected nodes. Moreover, non\|dominated sorting genetic algorithm II (NSGA\|II) based on elitist strategy is proposed to solve multi\|objective model, and technique for order preference by similarity to an ideal solution (TOPSIS) based on information entropy is adopted to choose the optimal solution from Pareto solution set. In the end, the simulation results on IEEE\|33 distribution system demonstrate the effectiveness of the proposed approach.