A unified power flow controller using a power electronics integrated transformer
This paper presents a Unified Power Flow Controller (UPFC) application of the Custom Power Active Transformer (CPAT); a power electronics integrated transformer which provides services to the grid through its auxiliary windings. The CPAT structure integrates three single-phase transformers into one...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2019 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/132928 |
| Acceso en línea: | https://hdl.handle.net/2117/132928 https://dx.doi.org/10.1109/TPWRD.2019.2897601 |
| Access Level: | acceso abierto |
| Palabra clave: | Electric transformers Magnetic circuits Electric power distribution Power transmission Power transformers Power control Transformadors elèctrics Circuits magnètics Energia elèctrica -- Distribució Àrees temàtiques de la UPC::Enginyeria elèctrica::Maquinària i aparells elèctrics::Transformadors elèctrics Àrees temàtiques de la UPC::Enginyeria electrònica::Electrònica de potència::Circuits de potència |
| Sumario: | This paper presents a Unified Power Flow Controller (UPFC) application of the Custom Power Active Transformer (CPAT); a power electronics integrated transformer which provides services to the grid through its auxiliary windings. The CPAT structure integrates three single-phase transformers into one shunt-series combining transformer. This integration empowers a sub-station with the capability of dynamically regulating the terminal voltage and current of a transformer through isolated power electronics converters. This paper investigatesthe CPAT’s capability to provide UPFC services which includes power flow control, reactive power compensation, voltage regulation and harmonics elimination. Simulations of the CPAT-UPFC with a stiff grid and a 5-bus power system demonstrates its functionality as an inter-bus couplingtransformer that provides the required grid services. Moreover, the impact of the CPAT-UPFC during load perturbations on the power system is investigated to further validate its transient and steady-state response. Furthermore, an experimental prototype reveals the operation of the three-phase CPAT-UPFC confirming its stable operation according to the theoretical expectations. |
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