A Y-D Multifunction Balance Transformer-Based Power Quality Control System for Single-Phase Power Supply System

作者：Hu, Sijia; Li, Yong^*; Xie, Bin; Chen, Mingfei; Zhang, Zhiwen; Luo, Longfu; Cao, Yijia; Kubis, Andreas; Rehtanz, Christian

来源：IEEE Transactions on Industry Applications, 2016, 52(2): 1270-1279.

DOI：10.1109/TIA.2015.2503389

• Active compensation
• electrical railway
• full-bridge converter (FBC)
• power quality
• single-phase supply system

This paper proposes a Y-D multifunction balance transformer (YD-MFBT)-based power quality control system (MBT-PQCS) to deal with the power quality problems in the single-phase power system. The MBT-PQCS mainly consists of a YD-MFBT and a three-phase full-bridge converter (FBC). It fully explores the inherent negative sequence current (NSC) suppressing the ability of YD-MFBT, which makes the power flow transformed by FBC less than that of the conventional transformer-based compensating system. In addition, since the YD-MFBT exits three-phase output ports in relatively low-voltage level, FBC can directly connect with the main transformer via the output ports, without using the auxiliary step-down transformer. Therefore, the initial investment cost, installing difficulties and covering space of the whole compensating system, can be reduced significantly. In this paper, the current transforming relationship and the compensating principle of MBT-PQCS are presented, and the detection and control methods are given as well. Both the simulation and the experiment are used to verify the effectiveness of the proposed system.

• 出版日期2016-4
• 单位TU Dortmund; 湖南大学