NDLI: Cascaded Multi-Level Based 6kV MVDS without Input and Output Transformers and its Control

Content Provider	IEEE Xplore Digital Library
Author	Guodong Li Chengxiong Mao Jiming Lu Dan Wang
Copyright Year	2006
Description	Author affiliation: Huazhong Univ. of Sci. & Technol., Hubei (Guodong Li; Chengxiong Mao; Jiming Lu; Dan Wang)
Abstract	Compared with the traditional MVDs, including two-level, three-level, hybrid and cascaded multi-level (CML) with poly-phase multi-winding transformer structure, new cascaded multi-level based 6 kV MVDs without input and output transformers is developed. Then, its corresponding multi-input and multi-output nonlinear mathematic model is built in this paper with the phase-shifted carrier pulse modulation (PSCPWM) applied. For the MVDs wider working range, input-state linearization is used to transform the proposed nonlinear model to be linear one. Consequently, the DC capacitor voltage is selected to be the feedback to achieve well voltage sharing among the series connected power units. For the purpose of modular and redundant design, decentralized coordinated control strategy is studied, which lead no message exchange among series connected power units. Furthermore, the active and inactive decouple control is realized in the rectifier of the MVDs. Mathematic simulations show the efficiency of the proposed control scheme
Starting Page	374
Ending Page	378
File Size	2395432
Page Count	5
File Format	PDF
ISBN	9781861353429
DOI	10.1109/UPEC.2006.367778
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-09-06
Publisher Place	UK
Access Restriction	Subscribed
Rights Holder	UPEC
Subject Keyword	Pulse width modulation inverters Rectifiers Voltage Power system harmonics Transformers Mathematics Topology Mathematical model Power harmonic filters Leg
Content Type	Text
Resource Type	Article

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