Backward/Forward Method for Three-phase Power Flow Calculation in Low Voltage Distribution Networks with EV Charging Points
Backward/Forward Method for Three-phase Power Flow Calculation in Low Voltage Distribution Networks with EV Charging Points
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DOI：
10.1109/iicpe.2018.8709560
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发表时间：
2018-12
期刊：
影响因子：
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通讯作者：
N. K. Meena;Jin Yang;Pushpendra Singh
中科院分区：
文献类型：
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作者：
N. K. Meena;Jin Yang;Pushpendra Singh
本文对潮流计算方法进行了综合评述，提出了一种考虑电动汽车充电点的低压三相平衡/不平衡配电网潮流计算方法。该方法采用基尔霍夫电流定律（KCL）和基尔霍夫电压定律（KVL）来确定分支电流和节点电压。为了快速计算，采用后向/前向扫描方法来更新每次迭代中的总线电压。提出了配电系统各元件的数学模型。为了验证该方法的有效性，将仿真结果与现有方法进行了比较。此外，电压和损耗灵敏度用于通过考虑系统的不平衡百分比来确定潜在的充电点及其大小。
The paper presents comprehensive review on power flow methods, and proposed a robust and fast power flow calculation approach for low voltage three-phase balanced/unbalanced distribution networks considering the Electric Vehicles (EVs) charging points. The proposed approach adopts the Kirchhoff’s current law (KCL) and Kirchhoff’s voltage law (KVL) to determine the branch currents and node voltages. For fast calculations, a backward/forward sweep approach is adopted to update the bus voltages in each iteration. The individual mathematical modelling of distribution system components are presented. To validate the method, simulation results obtained are compared with existing methods. Further, voltage and loss sensitivities are used to determine the potential charging points and their sizes by considering percentage unbalancing of the system.