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Cross-Regulation Assessment of DIDO Buck-Boost Converter for Renewable Energy Application
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- Elamalayil Soman, Deepak (author)
- Uppsala universitet,Elektricitetslära
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- Leijon, Mats, 1958- (author)
- Uppsala universitet,Elektricitetslära
- (creator_code:org_t)
- 2017-06-25
- 2017
- English.
- In: Energies. - : MDPI AG. - 1996-1073. ; 10:7
- Journal article (peer-reviewed)
Abstract
Subject headings
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- When medium- or high-voltage power conversion is preferred for renewable energy sources, multilevel power converters have received much of the interest in this area as methods for enhancing the conversion efficiency and cost effectiveness. In such cases, multilevel, multi-input multi-output (MIMO) configurations of DC-DC converters come to the scenario for integrating several sources together, especially considering the stringent regulatory needs and the requirement of multistage power conversion systems. Considering the above facts, a three-level dual input dual output (DIDO) buck-boost converter, as the simplest form of MIMO converter, is proposed in this paper for DC-link voltage regulation. The capability of this converter for cross regulating the DC-link voltage is analyzed in detail to support a three-level neutral point clamped inverter-based grid connection in the future. The cross-regulation capability is examined under a new type of pulse delay control (PDC) strategy and later compared with a three-level boost converter (TLBC). Compared to conventional boost converters, the high-voltage three-level buck boost converter (TLBBC) with PDC exhibits a wide controllability range and cross regulation capability. These enhanced features are extremely important for better regulating variable output renewable energy sources such as solar, wind, wave, marine current, etc. The simulation and experimental results are provided to validate the claim.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Keyword
- dual input dual output (DIDO) converter; three-level buck boost converter (TLBBC); pulse delay control (PDC); neutral point clamped inverter; cross-regulation; renewable energy conversion
- Teknisk fysik med inriktning mot elektricitetslära
- Engineering Science with specialization in Science of Electricity
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- ref (subject category)
- art (subject category)
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