PROJECT TITLE :

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

ABSTRACT:

This paper proposes a Y-D multifunction balance transformer (YD-MFBT)-primarily based power quality control system (MBT-PQCS) to deal with the ability quality problems in the single-phase power system. The MBT-PQCS mainly consists of a YD-MFBT and a 3-part full-bridge converter (FBC). It totally explores the inherent negative sequence current (NSC) suppressing the power of YD-MFBT, that makes the facility flow transformed by FBC less than that of the standard transformer-primarily based compensating system. Further, since the YD-MFBT exits 3-section output ports in comparatively low-voltage level, FBC can directly connect with the main transformer via the output ports, without using the auxiliary step-down transformer. Thus, the initial investment cost, installing difficulties and covering space of the whole compensating system, can be reduced significantly. In this paper, this remodeling relationship and therefore the compensating principle of MBT-PQCS are presented, and the detection and control methods are given additionally. Both the simulation and also the experiment are used to verify the effectiveness of the proposed system.