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Implementation of Cascaded H-Bridge Control Scheme for SSSC using Zero Sequence Voltage and Negative Sequence Current

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Implementation of Cascaded H-Bridge Control Scheme for SSSC using Zero Sequence Voltage and Negative Sequence Current


M. Subalakshmi | A. Rathinam



M. Subalakshmi | A. Rathinam "Implementation of Cascaded H-Bridge Control Scheme for SSSC using Zero Sequence Voltage and Negative Sequence Current" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-2, February 2020, pp.609-612, URL: https://www.ijtsrd.com/papers/ijtsrd30063.pdf

This paper focuses on a control scheme of cascaded H-bridge scheme implemented in SSSC for enhance the three phase power systems. Cascaded H-bridge based SSSC has offer low switching losses and less total harmonics distortion, and reduces the number of circuit components. Each H-bridge cell has isolated dc capacitors which is exist balanced capacitor voltages. Since SSSC is often requested to operate under asymmetrical condition by power system faults such as one line grounding or two line short circuit and it can be the control output current almost freely. Cascaded H -bridge based SSSC needs wide range of margin of dc voltage for operates in large unbalanced voltage power system. This proposed system focused on to avoids wide range of margin of dc voltage by exclusively using the two methods such has zero sequence voltage and negative sequence current. By this scheme, the SSSC is allowed to operate under asymmetrical condition by power system faults. The validity is examined by digital simulation under one line and two line fault in power system.

Cascaded H-bridge, SSSC, Zero Sequence Voltage, Negative Sequence Current, and Capacitor Voltage Balancing


IJTSRD30063
Volume-4 | Issue-2, February 2020
609-612
IJTSRD | www.ijtsrd.com | E-ISSN 2456-6470
Copyright © 2019 by author(s) and International Journal of Trend in Scientific Research and Development Journal. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0) (http://creativecommons.org/licenses/by/4.0)

International Journal of Trend in Scientific Research and Development - IJTSRD having online ISSN 2456-6470. IJTSRD is a leading Open Access, Peer-Reviewed International Journal which provides rapid publication of your research articles and aims to promote the theory and practice along with knowledge sharing between researchers, developers, engineers, students, and practitioners working in and around the world in many areas like Sciences, Technology, Innovation, Engineering, Agriculture, Management and many more and it is recommended by all Universities, review articles and short communications in all subjects. IJTSRD running an International Journal who are proving quality publication of peer reviewed and refereed international journals from diverse fields that emphasizes new research, development and their applications. IJTSRD provides an online access to exchange your research work, technical notes & surveying results among professionals throughout the world in e-journals. IJTSRD is a fastest growing and dynamic professional organization. The aim of this organization is to provide access not only to world class research resources, but through its professionals aim to bring in a significant transformation in the real of open access journals and online publishing.

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