一种V2G模式下计及开断概率和负荷转移概率的配电网可靠性评估算法

发布时间：2018-05-31 20:28

本文选题：配电网 + 可靠性评估　；参考：《电网技术》2014年08期

【摘要】：基于配电网的有向网络模型,提出了一种V2G模式下计及设备开断概率和负荷转移概率的配电网可靠性评估算法。首先分析了网络中元件故障后的传播路径和传播特性,引入期望对可靠性指标进行描述,进而建立了配电系统可靠性分析模型。在V2G模式下,该算法根据电动汽车充放电动态概率模型将电动汽车等效为备用电源,再根据其额定功率,确定电动汽车的最大供电范围和对该范围内各区域的供电次序,计算可靠供电概率,从而建立电动汽车充放电随机性与供电可靠性之间的映射。RBTS母线6馈线4系统算例分析表明,电动汽车接入配电网后,能够显著改善配电网局部的供电可靠性。
[Abstract]:Based on the directed network model of distribution network, a reliability evaluation algorithm for distribution network considering the probability of equipment breaking and load transfer in V2G mode is proposed. Firstly, the propagation path and propagation characteristics of the components in the network after failure are analyzed, and the reliability analysis model of the distribution system is established by introducing the expectation to describe the reliability index. In V2G mode, according to the dynamic probability model of charging and discharging of electric vehicle, the electric vehicle is equivalent to a standby power supply, and then according to its rated power, the maximum range of power supply and the order of power supply to each region within the range are determined. By calculating the reliable power supply probability, the mapping between charging and discharging randomness and power supply reliability of electric vehicle is established. An example of the system of RBTS bus 6 feeder 4 shows that after the electric vehicle is connected to the distribution network, It can significantly improve the reliability of local power supply in distribution network.
【作者单位】：西南交通大学电气工程学院;
【基金】：国家自然科学基金青年基金(51207130) 中央高校基本科研业务费专项资金资助(2682013CX015)~~
【分类号】：TM732

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