Grid Connection of Wave Power Farm Using an N-Level Cascaded H-Bridge Multilevel Inverter
Author(s) -
Rickard Ekström,
Mats Leijon
Publication year - 2013
Publication title -
journal of electrical and computer engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.318
H-Index - 25
eISSN - 2090-0155
pISSN - 2090-0147
DOI - 10.1155/2013/562548
Subject(s) - inverter , converters , grid connection , power (physics) , h bridge , connection (principal bundle) , grid , bridge (graph theory) , energy (signal processing) , electronic engineering , engineering , point (geometry) , electrical engineering , topology (electrical circuits) , computer science , physics , mathematics , photovoltaic system , voltage , structural engineering , medicine , geometry , quantum mechanics
An N-level cascaded H-bridge multilevel inverter is proposed for grid connection of large wave power farms. The point-absorber wave energy converters are individually rectified and used as isolated DC-sources. The variable power characteristics of the wave energy converters are discussed, and a method of mitigating this issue is demonstrated. The complete power control system is given in detail and has been experimentally verified for a single-phase setup of the 9-level inverter. Theoretical expressions of the power sharing between multilevel cells are derived and show good correspondence with the experimental results
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