Three-Phase Isolated Multi-Modular Converter in Renewable Energy Distribution Systems
| Autor: | Cristian Verdugo, Jose Ignacio Candela, Pedro Rodriguez, Frede Blaabjerg |
|---|---|
| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament d'Enginyeria Elèctrica, Universitat Politècnica de Catalunya. SEER - Sistemes Elèctrics d'Energia Renovable |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Power transformer insulation
Computer science 020209 energy Energy Engineering and Power Technology 02 engineering and technology Network topology Enginyeria electrònica::Electrònica de potència::Convertidors de corrent elèctric [Àrees temàtiques de la UPC] Topology law.invention Distribution system Cascaded Transformer Multilevel Inverter Isolated Multi-Modular Converter law Modular Multilevel Converter 0202 electrical engineering electronic engineering information engineering modular multilevel converter (MMC) Convertidors de corrent elèctric Electrical and Electronic Engineering Cascaded-transformer multilevel inverter (CTMI) Transformer High voltage systems Energia solar fotovoltaica business.industry isolated multimodular converter (IMMC) 020208 electrical & electronic engineering Photovoltaic system Electrical engineering High-voltage techniques Inverters Converters Electric current converters Renewable energy Energies::Energia solar fotovoltaica::Captadors solars [Àrees temàtiques de la UPC] Three-phase high-voltage systems Integrated circuit modeling Photovoltaic power systems Voltage control business Voltage |
| Zdroj: | Verdugo, C, Candela, J I, Blaabjerg, F & Rodriguez, P 2020, ' Three-Phase Isolated Multi-Modular Converter in Renewable Energy Distribution Systems ', IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 8, no. 1, 8626187, pp. 854-865 . https://doi.org/10.1109/JESTPE.2019.2895465 Recercat. Dipósit de la Recerca de Catalunya instname UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| DOI: | 10.1109/JESTPE.2019.2895465 |
| Popis: | Multilevel converters are widely used in medium and high voltage applications. Their high performance, power quality, efficiency and smaller filters make them interesting for renewable energy distribution systems. In utility- scale photovoltaic plants, these topologies could provide multiple benefits since they are able to connect string of photovoltaic panels to independent modules. However, high floating voltages caused by high number of modules limit multilevel converters in medium and high voltage applications, since all of them are not suitable to provide isolation to each module. To offer a solution, this paper presents a novel multi-modular converter that provides multiple isolated modules connected in series through low frequency transformers to operate at medium voltage levels. This topology is able to achieve the power balancing between the connected modules and independently adjust the dc voltage of each module by means of controlling a circulating current which flows through the arms. Furthermore, the topology implemented in photovoltaic renewable energy systems and the control strategy required to regulate the circulating and the output current are presented. The main principle behind this concept and the performance of the converter are evaluated and validated through simulation and experimental results. |
| Databáze: | OpenAIRE |
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