Multiple-module high-gain high-voltage DCDC transformers for offshore wind energy systems
Abstract
Renewable energy sources, such as offshore wind farms, require high voltage gains in order to interface with power transmission networks. These conversions are normally made using bulky, complex, and costly transformers and high-voltage acdc converters with unnecessary bidirectional power flow capability. Multiple modules of single-switch single-inductor dcdc converters can reach high gains without transformers in these applications due to low semiconductor conduction loss in high-power devices. This paper describes a new approach for high-gain high-voltage dcdc converters using multiple modules of single-switch single-inductor transformerless converters. Results for low-voltage experimental prototypes show gains of up to 29 p.u. and demonstrate the potential of the approach as high-gain dcdc converters for offshore wind farms. This paper then demonstrates the viability of multiple-module converters compared to a conventional high-voltage dc converter and a theoretical full-bridge converter due to fewer devices and valves, comparable isolation levels, and ease of interleaving for increased reliability.
Collections
- Electrical Engineering [2647 items ]
Related items
Showing items related by title, author, creator and subject.
-
Investigation of inter-line dynamic voltage restorer with virtual impedance injection
Elserougi, A.; Hossam-Eldin, A.; Massoud, Ahmed; Ahmed, S. ( IEEE , 2010 , Conference Paper)The Inter-Line Dynamic Voltage Restorer (IDVR) consists of several voltage source inverters connected to different independent distribution feeders with common dc bus. When one of the inverters compensates for voltage sag ... -
Dynamic voltage restorer for voltage sag mitigation in oil & gas industry
Messiha, M.; Baraket, C.; Massoud, Ahmed; Iqbal, A.; Soliman, R. ( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)The objective of this paper is to design and implement an efficient and economical dynamic voltage restorer (DVR) to compensate for voltage sag conditions in oil and gas industry. In a power distribution system or plant ... -
Investigation of inter feeder power flow regulator: Load sharing mode
Hossam-Eldin, A.; Elserougi, A.; Massoud, Ahmed; Ahmed, S. (2010 , Article)The Inter feeder Power Flow Regulator (IFPFR) proposed in this paper consists of several voltage source inverters with common dc bus; each inverter is connected in series with one of different independent distribution ...