CONCEPT OF CONSTRUCTION OF POWER CIRCUITS OF A MULTILEVEL MODULAR CONVERTER AND ITS TRANSISTOR MODULES
DOI:
https://doi.org/10.20998/2074-272X.2018.6.03Keywords:
power supply system, multilevel modular converter, transistor module, shoulder currents, Matlab model of three-phase MMC, state of valvesAbstract
Goal. The goal of the paper is to study the peculiarities of building power circuits of a modular multilevel converter (MMC) of electrical energy for DC transmission lines, to investigate its operating principles and basic characteristics. Methodology. We have applied the theory of electrical circuits and mathematical simulation in Matlab package. Results. A Matlab-model of the MMC power circuit was constructed with shunting of all the shoulders by current sources, which made it possible to check the correctness of the formulas for the characteristics of the proposed circuits. Originality. Variants of power circuits of MMC with shunting of all shoulders of the converter by current sources are offered. The tables of states of HB and FB modules for forward and backward direction of the current of the shoulders are made. Practical value. The use of the proposed structure of the converter power circuit and the algorithms of operation of the power transistor modules will help to determine the scope of their application, will help in the synthesis of the control system and analysis of possible emergency modes of the MMC.References
1. Marquardt R. Stramrichterchaltungen mit verteilten energiespeichern. Patent German, DE20 122923V1, 2001. (Ger).
2. Lesnicar A., Marquardt R. An innovative modular multilevel converter topology suitable for a wide power range. 2003 IEEE Bologna Power Tech Conference Proceedings, 2003, vol.3, p. 6. doi: 10.1109/PTC.2003.1304403.
3. Hagiwara M., Akagi H. PWM control and experiment of modular multilevel converters. 2008 IEEE Power Electronics Specialists Conference, 2008, pp. 154-161. doi: 10.1109/PESC.2008.4591917.
4. Alstom. HVDC MaxSine. Available at: http://www.alstom.com/grid/products-and-services/engineeredenergy-solutions/hvdc-transmission-systems/HVDC-MaxSine (accessed 22 August 2013).
5. ABB. HVDC Light Gen. 4. Available at: www.new.abb.com/systems/hvdc (accessed 12 August 2013).
6. EPRI. HVDC Flexible. Available at: www.epri.sgcc.com.cn/prgc/english/Product Solution/HVDC Flexible (accessed 20 July 2013).
7. SIEMENS. SINAMICSSM120. Available at: http://www.industry.siemens.com/drives/global/en/converter/mvdrives/sinamics-sm120-cm (accessed 20 June 2013).
8. Perez M.A., Bernet S., Rodriguez J., Kouro S., Lizana R. Circuit Topologies, Modeling, Control Schemes, and Applications of Modular Multilevel Converters. IEEE Transactions on Power Electronics, 2015, vol.30, no.1, pp. 4-17. doi: 10.1109/tpel.2014.2310127.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2018 George G. Zhemerov, D. S. Krylov
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Authors who publish with this journal agree to the following terms:
1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.
