A single-phase multi-level D-STATCOM inverter using modular multi-level converter (MMC) topology for renewble energy sources

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dc.contributor.author Sotoodeh, Pedram
dc.date.accessioned 2014-02-24T21:30:32Z
dc.date.available 2014-02-24T21:30:32Z
dc.date.issued 2014-02-24
dc.identifier.uri http://hdl.handle.net/2097/17184
dc.description.abstract This dissertation presents the design of a novel multi-level inverter with FACTS capability for small to mid-size (10–20kW) permanent-magnet wind installations using modular multi-level converter (MMC) topology. The aim of the work is to design a new type of inverter with D-STATCOM option to provide utilities with more control on active and reactive power transfer of distribution lines. The inverter is placed between the renewable energy source, specifically a wind turbine, and the distribution grid in order to fix the power factor of the grid at a target value, regardless of wind speed, by regulating active and reactive power required by the grid. The inverter is capable of controlling active and reactive power by controlling the phase angle and modulation index, respectively. The unique contribution of the proposed work is to combine the two concepts of inverter and D-STATCOM using a novel voltage source converter (VSC) multi-level topology in a single unit without additional cost. Simulations of the proposed inverter, with 5 and 11 levels, have been conducted in MATLAB/Simulink for two systems including 20 kW/kVAR and 250 W/VAR. To validate the simulation results, a scaled version (250 kW/kVAR) of the proposed inverter with 5 and 11 levels has been built and tested in the laboratory. Experimental results show that the reduced-scale 5- and 11-level inverter is able to fix PF of the grid as well as being compatible with IEEE standards. Furthermore, total cost of the prototype models, which is one of the major objectives of this research, is comparable with market prices. en_US
dc.language.iso en_US en_US
dc.publisher Kansas State University en
dc.subject Wind energy en_US
dc.subject Multi-level inverter en_US
dc.subject DSTATCOM en_US
dc.title A single-phase multi-level D-STATCOM inverter using modular multi-level converter (MMC) topology for renewble energy sources en_US
dc.type Dissertation en_US
dc.description.degree Doctor of Philosophy en_US
dc.description.level Doctoral en_US
dc.description.department Department of Electrical and Computer Engineering en_US
dc.description.advisor Ruth Douglas Miller en_US
dc.subject.umi Electrical Engineering (0544) en_US
dc.date.published 2014 en_US
dc.date.graduationmonth May en_US

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