Temat: modular multilevel converter - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Selected aspects of Modular Multilevel Converter operation
Autorzy:: Zygmanowski, M.
Grzesik, B.
Fulczyk, M.
Nalepa, R.
Powiązania:: https://bibliotekanauki.pl/articles/201376.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: modular multilevel converter
MMC
power electronic converter modeling
Opis:: The operation of the Modular Multilevel Converter (MMC) is the main subject of this paper. Selected operation aspects are discussed on the basis of the averaged model, with a special focus on power section parameters and control. The direct modulation method has been chosen for the control of the MMC.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2014, 62, 2; 375-385
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: A Review of LCC-HVDC and VSC-HVDC Technologies and Applications
Autorzy:: Oni, O. E.
Mbangula, K. I.
Davidson, I. E.
Powiązania:: https://bibliotekanauki.pl/articles/136148.pdf
Data publikacji:: 2016
Wydawca:: EEEIC International Barbara Leonowicz Szabłowska
Tematy:: commutation failure
HVDC
line commutated converter
modular multilevel converter
voltage source converter (VSC)
Opis:: High Voltage Direct Current (HVDC) systems has been an alternative method of transmitting electric power from one location to another with some inherent advantages over AC transmission systems. The efficiency and rated power carrying capacity of direct current transmission lines highly depends on the converter used in transforming the current from one form to another (AC to DC and vice versa). A well-configured converter reduces harmonics, increases power transfer capabilities, and reliability in that it offers high tolerance to fault along the line. Different HVDC converter topologies have been proposed, built and utilised all over the world. The two dominant types are the line commutated converter LCC and the voltage source converter VSC. This review paper evaluates these two types of converters, their operational characteristics, power rating capability, control capability and losses. The balance of the paper addresses their applications, advantages, limitations and latest developments with these technologies.
Źródło:: Transactions on Environment and Electrical Engineering; 2016, 1, 3; 68-76
2450-5730
Pojawia się w:: Transactions on Environment and Electrical Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Improved carrier phase shift modulation and voltage equalization control strategy in modular multilevel converter
Autorzy:: Jin, Hongtao
Luo, Yinghong
Fan, Yuheng
Pan, Shengxiong
Powiązania:: https://bibliotekanauki.pl/articles/141004.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: circulation suppression
modular multilevel converter
improved carrier phase shifting
switching frequency
voltage equalization
Opis:: In order to solve the problem of traditional carrier phase-shift modulation with multiple ratios or PI controllers and cumbersome tuning parameters, this paper uses improved carrier phase-shift modulation. The total turn-on number of sub-modules each bridge arm is determined by comparing the sinusoidal modulated wave with the triangular carrier, and then the control signal is generated according to the capacitance voltage sorting result and the bridge arm current polarity. However, this modulation method uses a sorting method that causes the insulated gate bipolar transistor (IGBT) have an excessively high switching frequency. Therefore, a sorting trigger condition that can effectively reduce the switching frequency is used. The method determines whether to reorder based on the error between the voltage average and the actual value. For the circulation problem, the double-frequency negative sequence component is extracted by rotating coordinate transformation, and it is suppressed by PI control. A 21-level MMC model was built in MATLAB/simulink to analyze the sub-module capacitor voltage fluctuation, output current, voltage distortion rate and bridge arm circulation. It is verified that the modulation method can combine the sorting algorithm and circulation suppression method at the same time, and has better voltage equalization and circulation suppression effects.
Źródło:: Archives of Electrical Engineering; 2019, 68, 4; 803-815
1427-4221
2300-2506
Pojawia się w:: Archives of Electrical Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Multiobjective Improved Particle Swarm Optimisation for Transmission Congestion and Voltage Profile Management using Multilevel UPFC
Autorzy:: Rao, Mallavolu Malleswara
Ramadas, Geetha
Powiązania:: https://bibliotekanauki.pl/articles/1193696.pdf
Data publikacji:: 2019
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: congestion
unified power flow controller
improved particle swarm optimization
modular multilevel converter
voltage profile
Opis:: This paper proposes a multiobjective improved particle swarm optimisation (IPSO) for placing and sizing the series modular multilevel converter-based unified power flow controller (MMC-UPFC) FACTS devices to manage the transmission congestion and voltage profile in deregulated electricity markets. The proposed multiobjective IPSO algorithm is perfect for accomplishing the close ideal distributed generation (DG) sizes while conveying smooth assembly qualities contrasted with another existing algorithm. It tends to be reasoned that voltage profile and genuine power misfortunes have generous upgrades along ideal speculation on DGs in both the test frameworks. The proposed system eliminates the congestion and the power system can be easily used to solve complex and non-linear optimisation problems in a real-time manner.
Źródło:: Power Electronics and Drives; 2019, 4, 39; 79-93
2451-0262
2543-4292
Pojawia się w:: Power Electronics and Drives
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Cascaded multilevel converters in recent research and applications
Autorzy:: Malinowski, M.
Powiązania:: https://bibliotekanauki.pl/articles/199898.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: multilevel converters
cascaded converters
modular multilevel converter
modulation
solid state transformer
photovoltaic systems
konwerter
przetwornica
modulacja
transformator
systemy fotowoltaiczne
Opis:: Multilevel converters have been intensively investigated and developed since 1960s and have found successful industrial applications. The aim of this paper is to present state of the art as well as recent research and applications of cascaded multilevel converters, which are a very interesting solution for power distribution systems and renewable energy sources. Cascaded multilevel converters can easily operate at medium and high voltage based on the series connection of power modules (cells), which use standard low-voltage component configurations. Series connections of modules (cells) allow for high quality output voltages and input currents, reduction of passive components and availability of component redundancy. Due to these features the cascaded multilevel converters have been recognized as attractive solutions for high-voltage direct-current (HVDC) transmission, solid state transformers (SST) and photovoltaic (PV) systems.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2017, 65, 5; 567-578
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

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