NDLI: Modeling and controller design for series-connected output universal link converter

Content Provider	IEEE Xplore Digital Library
Author	Myoungho Kim Seung-Ki Sul Anno Yoo
Copyright Year	2013
Description	Author affiliation: Power & Control Syst. Div., Samsung Heavy Ind., Hwasung, South Korea (Myoungho Kim) \|\| Basic Technol. R&D Center, LSIS, Anyang, South Korea (Anno Yoo) \|\| Dept. of Electr. Eng. & Comput. Sci., Seoul Nat. Univ., Seoul, South Korea (Seung-Ki Sul)
Abstract	This paper conducts modeling and controller design for SEries-connected Output Universal Link(SEOUL) converter. The SEOUL converter was proposed to interface multiple distributed power sources to the grid with reduced number of reactive components. It employs high-frequency transformer instead of bulky line-frequency transformer as Solid State Transformers(SSTs). Besides, it does not use large DC-link capacitor at the input-side and reduce the size of the input filter. This is inherently possible due to its original operating characteristic. The H-bridges connected to the grid does not perform PWM operation to make the input phase current sinusoidal. Instead, their switches operate synchronized to the grid frequency and the input phase currents are synthesized sinusoidally by the high-frequency power transfer part of the SEOUL converter. This paper focuses on the power transfer of SEOUl converter and develops the analytic model of it. Based on the developed model, a DC-link voltage control strategy is proposed with the decoupling control method. The developed model and proposed control method was verified by experiments. The resultant input phase current is kept as sinusoidal at various operating conditions.
Starting Page	1054
Ending Page	1061
File Size	1953440
Page Count	8
File Format	PDF
ISBN	9781479903368
DOI	10.1109/ECCE.2013.6646820
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-15
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Inductance Capacitors Bridge circuits Rectifiers Inverters Integrated circuit modeling Power harmonic filters
Content Type	Text
Resource Type	Article

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