Elsaharty M.A. , Candela J.I. , RODRÍGUEZ CORTÉS, PEDRO
No
IEEE Trans Power Delivery
Article
Científica
4.415
01/01/2018
000431959600026
2-s2.0-85030724872
This paper presents a new transformer, that is, the custom power active transformer (CPAT) - which integrates shunt and series equivalent circuits within the transformer\'s magnetic structure. Thus, it provides power system services using a single transformer. The CPAT equipped with a power converter can be utilized in distribution systems to control grid current and load-voltage waveforms while operating as a step-up or step-down transformer between the grid and load. Moreover, it can provide other services that any typical shunt-series compensation arrangement provides. The design and analysis of a single-phase CPAT are presented, showing the effect of coupling between windings and transformer parameters affecting CPAT operation. In this paper, control of the CPAT in a unified power-quality controller application is investigated to attenuate grid-current and load-voltage harmonics as well as compensate for reactive power requirements and mitigate grid inrush current. Through simulation and experimental implementation, the merits and performance of the CPAT were validated. © 1986-2012 IEEE.
Electric network analysis; Electric power transmission networks; Electric windings; Equivalent circuits; Harmonic analysis; Magnetic circuits; Magnetism; Power transformers; Quality control; Transformer magnetic circuits; Transformer windings; Winding; Circuit faults; Power conditioning; Power distributions; Shunts (electrical); Transformer core; Electric power system control