考虑容量及电压约束的高压配电网可靠性快速评估算法

发布时间：2018-03-16 22:16

本文选题：高压配电网　切入点：可靠性评估　出处：《电力系统自动化》2017年17期 　论文类型：期刊论文

【摘要】：鉴于目前高压配电网可靠性评估研究较少,文中提出一种考虑容量及电压约束的可靠性评估快速混合算法。基于高压配电网分区供电特点,将大规模电网转换为多个小规模电网;提出将线路允许电压损耗转化为相应的容量约束,之后的算法不再考虑电压约束;提出基于虚拟初始闭环潮流的元件冗余容量进行容量约束保守校验,快速筛选出部分不受容量约束的故障状态。该算法将网流法引入高压配电网可靠性评估,利用最大流模型进行容量约束详细校验,并采用消圈法进行最小切负荷快速计算。算例结果表明,在满足工程计算精度情况下,高压配电网分区策略加上保守和详细容量校验可减少计算量,具有实用价值。
[Abstract]:In view of the lack of research on reliability evaluation of high voltage distribution network at present, a fast hybrid algorithm for reliability evaluation considering capacity and voltage constraints is proposed, which is based on the characteristics of district power supply in high voltage distribution network. The large scale power network is converted into several small scale power grids, and the line allowable voltage loss is transformed into the corresponding capacity constraints, and the subsequent algorithm does not consider the voltage constraints. Based on the virtual initial closed loop power flow, the redundant capacity of components is checked conservatively with capacity constraints, and some fault states without capacity constraints are quickly selected. The network flow method is introduced to the reliability evaluation of high voltage distribution network. The maximum flow model is used to check the capacity constraints in detail, and the method of eliminating loops is used to calculate the minimum shedding load quickly. The zonation strategy of high voltage distribution network combined with conservative and detailed capacity check can reduce the calculation cost and is of practical value.
【作者单位】：输配电装备及系统安全与新技术国家重点实验室(重庆大学);国网郑州供电公司;国网陕西省电力公司经济技术研究院;
【分类号】：TM732

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