Active transformer functionalities including an energy storage system

Auteurs

Leon J.D.V., Tarraso A., Candela J.I., Rodriguez P.

Référence

2021 IEEE Energy Conversion Congress and Exposition, ECCE 2021 - Proceedings, pp. 1288-1294, 2021

Description

This paper presents a series converter in an application with a Custom Power Active Transformer (CPAT) which is a power electronics integrated transformer providing services to the grid and load. The active transformer structure adds shunt and series windings into three single-phase transformers. This structure improves a substation with the ability of dynamically regulating voltage and current through isolated power electronics converters. Additionally, the active transformer includes a Battery Energy Storage System (BESS) in order to perform voltage control with the series converter and an islanding mode or even a black start with the shunt converter. Throughout the paper, the stability analyses of the control algorithm regarding the series converter is presented and the proposed topology is validated through hardware-in-the-loop simulations as well as in a 200kVA prototype.

Lien

doi:10.1109/ECCE47101.2021.9595764