Elsaharty M.A. , Rocabert J. , Candela J.I. , RODRÍGUEZ CORTÉS, PEDRO
No
IEEE Trans Power Electron
Article
Científica
6.373
2.817
01/01/2019
000458179200022
2-s2.0-85048502344
This paper presents the three-phase custom power active transformer (CPAT), characterized by the integration of power electronics in a transformer to facilitate grid services. Such integration enables step-up/step-down transformation between primary and secondary as well as shunt and series compensation services to the power system through a single transformer. The CPAT can empower the grid with flexible ac transmission system and power quality services such as power flow control, reactive power compensation, active filter, and voltage regulation through a single monolithic transformer. In this paper, designs of the three-phase CPAT are realized and analyzed based on their equivalent magnetic circuit as well as their structure requirements and constraints. Simulation analysis of the three-phase CPAT clarifies its capability to actively regulate power flow between the primary and secondary windings as well as achieve grid harmonic current compensation. Moreover, through real-time simulations and an experimental prototype, the merits and performance of the three-phase CPAT were further validated. © 1986-2012 IEEE.
Electric load flow; Electric network analysis; Electric power transmission; Electric power transmission networks; Electric windings; Flexible AC transmission systems; Flow control; Magnetic circuits; Magnetic cores; Magnetism; Power control; Power transformers; Quality control; Reactive power; Voltage regulators; Winding; Equivalent magnetic circuit; Flexible ac transmission system (FACTS); Harmonic current compensations; Integrated circuit modeling; Load flow control; Monolithic transformers; Power harmonic filters; Reactive power compensation; Electric power system control