A Comprehensive Study for the Power Flow Controller Used in Railway Power Systems

作者：Hu, Sijia; Li, Sheng; Li, Yong^*; Krause, Olav; Zare, Firuz

来源：IEEE Transactions on Industrial Electronics, 2018, 65(8): 6032-6043.

DOI：10.1109/TIE.2017.2786201

• Design capacity optimization
• feeder voltage
• grid-connection compatibility
• losses
• power flow controller
• serviced electrified railway systems

Essential imbalance and fluctuation of the mobile train load draw some problems, e.g., three-phase unbalance, reactive power, voltage and load fluctuation, harmonics, etc. in both public and train supply networks (TSNs). Railway power flow controller (RPFC)'s good performance on dealing with those problems has been convinced in practice these years. However, as the primary task in commercialization, how to qualitatively determine RPFC's design capacity with high cost efficiency and how to comprehensively assess its performance in the design stage have perplexed engineers for many years. To solve those problems in both planning and real-time executing processes, this paper focuses on an RPFC design capacity optimization strategy for grid-connection compatibility and operating performance improvement in terms of both the utility and the TSN. The strategy not only makes a railway substation satisfy the grid-connection standards with high calculating efficiency, but also renders the RPFC to have the minimum design capacity, the excellent feeder voltage control ability, the good fixed capacitor installing prospect, and the high operating efficiency on the targets of reducing the investment and enhancing the transportation ability. The generic models, the industry-oriented design and the quantitative analysis, discussed in this paper give an insight for those concerned based on a balance transformer. Future RPFC projects on serviced railway power systems will benefit from the proposed methodology.

• 出版日期2018-8
• 单位湖南大学