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Optimal scheduling of mobile utility-scale battery energy storage systems in electric power distribution networks
Journal of Energy Storage ( IF 9.4 ) Pub Date : 2020-06-23 , DOI: 10.1016/j.est.2020.101615
Hedayat Saboori , Shahram Jadid

Today, knowledge of battery energy storage systems (BESSs) has experienced a rapid growth resulting to the numerous grid applications. The utility-scale batteries assembled in containers can be transported in the grid. Despite numerous benefits, this feature has been overlooked. In previous studies, battery movement is modeled based on a specific transfer method, such as a truck or train. Accordingly, by changing the method of transporting the battery, the problem should be re-modeled and also it is not possible to schedule the battery movements by combining two transfer methods. In this context, this paper proposes a new battery movement scheduling in the distribution networks. To this end, optimal charging or discharging power in addition to the bus location will be determined for any time period of operation. In the proposed model, only distance between buses is important and how the battery is transferred is not important. accordingly, battery transfer may be performed using one transmission method, such as a truck or a combination of two methods (truck and train). Reactive power contribution by the battery, power losses and bus voltages of the network are also counted by maintaining linear structure of the model. This guarantees practical application of the formulation for the real-life distribution grids. Results of implementing the model on a test system indicate distinct superiority of the mobile BESS with respect to the stationary installations.



中文翻译:

配电网中移动公用事业规模电池储能系统的优化调度

如今,电池储能系统(BESS)的知识已得到迅速发展,这导致了众多的电网应用。装在容器中的通用规模电池可以在电网中运输。尽管有很多好处,但此功能却被忽略了。在以前的研究中,电池移动是基于特定的传输方法(例如卡车或火车)建模的。因此,通过改变电池的运输方法,该问题应被重塑,并且也不可能通过组合两种转移方法来调度电池的运动。在这种情况下,本文提出了一种新的配电网络中的电池移动调度。为此,将在任何操作时间段内确定除总线位置以外的最佳充电或放电功率。在建议的模型中,仅公交车之间的距离很重要,而电池的传输方式也不重要。因此,可以使用一种传输方法(例如卡车)或两种方法(卡车和火车)的组合来执行电池传输。电池的无功功率贡献,功率损耗和网络总线电压也可以通过保持模型的线性结构来计算。这保证了该配方在实际配电网中的实际应用。在测试系统上实施模型的结果表明,移动式BESS相对于固定装置具有明显的优势。电池的无功功率贡献,功率损耗和网络总线电压也可以通过保持模型的线性结构来计算。这保证了该配方在实际配电网中的实际应用。在测试系统上实施模型的结果表明,移动式BESS相对于固定装置具有明显的优势。电池的无功功率贡献,功率损耗和网络总线电压也可以通过保持模型的线性结构来计算。这保证了该配方在实际配电网中的实际应用。在测试系统上实施模型的结果表明,移动式BESS相对于固定装置具有明显的优势。

更新日期:2020-06-23
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