Quadrature voltage compensation in the isolated multi-modular converter
| Autor: | Jose Ignacio Candela, Cristian Verdugo, Pedro Rodriguez |
|---|---|
| Přispěvatelé: | Universitat Politècnica de Catalunya. Doctorat en Sistemes d'Energia Elèctrica, Universitat Politècnica de Catalunya. Departament d'Enginyeria Elèctrica, Universitat Politècnica de Catalunya. SEER - Sistemes Elèctrics d'Energia Renovable |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Control and Optimization
Maximum power principle Computer science Energies [Àrees temàtiques de la UPC] 020209 energy Energy Engineering and Power Technology energy balance operation isolated multi-modular converter 02 engineering and technology cascaded-transformer multilevel inverter Sistemes de distribució d'energia elèctrica 7. Clean energy lcsh:Technology Electric power systems Control theory 0202 electrical engineering electronic engineering information engineering Isolated multimodular converter Força electromotriu Electrical and Electronic Engineering Engineering (miscellaneous) Energy balance operation Electromotive force Renewable Energy Sustainability and the Environment business.industry lcsh:T Cascaded-transformer multilevel inverter 020208 electrical & electronic engineering Photovoltaic system Direct current Modular design Power (physics) Line current Voltage compensation business Energy (miscellaneous) Voltage |
| Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) Energies Volume 14 Issue 3 Energies, Vol 14, Iss 529, p 529 (2021) |
| Popis: | Series connections of modules in cascaded multilevel converters are prone to power imbalances due to voltage differences on their DC side. When modules are connected to direct current (DC) sources, such as photovoltaic panels, the capability of withstanding power imbalances is crucial for generating the maximum power. In order to provide a possible solution for this requirement, this paper proposes a control strategy called Quadrature Voltage Compensation, which allows a wide range of power imbalances. The proposed control strategy regulates the power by introducing a circulating current between the arms and a phase angle in the output voltage. The impact of the circulating current and its effect on the phase voltage are studied. To highlight the features of the proposed strategy, an analytical model based on vector superposition is also described, demonstrating the strong capability of tolerating power differences. Finally, to validate the effectiveness of the Quadrature Voltage Compensation, simulation and experimental results are presented for a three-phase isolated multi-modular converter. This work was supported by the Ministry of Science Innovation and Universities under the project RTI-2018-100921-B-21 and by the European Commission under the projects FLEXITRANSTORE H2020-LCE-2016-2017-SGS-774407 and INTERRFACE H2020-LC-SC3-2018-ES-SCC-824330. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|