Results 211 to 220 of about 15,753 (265)

Comparison of voltage source converters and Z-source converters for electric vehicles

Emerging Materials Research, 2021
Voltage source and current source converters are used in industrial applications as either boost or buck converters for a defined power flow direction. These operational modes limit these converters to be utilized on their own in hybrid and electric vehicle (EV) applications.
Selin Ozcira Ozkilic, Cagatay Dursun
openaire   +2 more sources

Voltage Dip Mitigation Using Shunt-Connected Voltage Source Converter

IEEE Transactions on Power Electronics, 2006
In this paper, a Voltage Source Converter (VSC) connected in shunt with the grid to mitigate voltage dips for sensitive processes is presented. The VSC maintains the magnitude of the grid voltage at the connection point constant by injecting reactive power to compensate for the voltage dip. This is achieved by using a cascade controller, constituted by
Massimo Bongiomo, Jan Svensson
openaire   +1 more source

Controllers for voltage source converters

2013 International Conference on Emerging Trends in Communication, Control, Signal Processing and Computing Applications (C2SPCA), 2013
The power system is dependent on control of power and voltage for its stability and reliability. Voltage Source Converter (VSC) technology has the advantage of being able to almost instantly change its working point within its capability limit. Due to this advantage, VSC can be used to support the system to maintain active power or output voltage ...
Soniya Agrawal, R.S. Geetha
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Voltage source converter in high voltage applications: multilevel versus two-level converters

9th IET International Conference on AC and DC Power Transmission (ACDC 2010), 2010
This paper presents a comparison between two-level and multilevel converters for medium-voltage applications. The comparison focuses on issues such as waveform quality, voltage and current stresses on the switching devices, switching frequency per device, and conversion losses (mainly, on-state and switching losses).
Zhang, Yushu, Adam, Grain Philip, Lim, Tee, Finney, Stephen, Williams, Barry   +4 more
openaire   +1 more source

L-Index Modulated Voltage Source Converter

International Journal of Emerging Electric Power Systems, 2008
A strategy is presented for the self-tuning of a voltage source converter (VSC) based Flexible AC Transmission Systems (FACTS) according to the prevailing system condition. L-index, which is a power system voltage stability status indicator, and its associated parameters are used to automatically regulate the modulation signal of the VSC.
Damian O Dike, Satish M Mahajan
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Voltage source converter in a microgrid

International Journal of System Assurance Engineering and Management, 2018
Microgird with higher amount of renewable energy sources interconnected with power electronic devices has many challenges, such as loss of inertia, low short circuit ratio, difficulty in power sharing, problem of storage in an islanded condition, which needs to be handled properly.
Bharat Chetry, Adriano Carvalho, Rui Brito   +2 more
openaire   +1 more source

Control of LCL filter based voltage source converter

Proceedings of 14th International Power Electronics and Motion Control Conference EPE-PEMC 2010, 2010
In this paper, the control of Voltage source converter which consists of six IGBT power switches is realized. Grid connection of VSC is provided through LCL filter and sinusoidal pulse width modulation (SPWM) technique which has 9 kHz switching frequency, is used for switching.
ŞEHİRLİ, ERDAL, ALTINAY, MERAL
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Exact Modeling of the Voltage Source Converter

IEEE Power Engineering Review, 2001
A discrete time, linear time varying model of the three-phase voltage source converter (VSC) is developed. The model is employed to determine the steady state operating characteristics of a VSC taking all ac-dc side harmonic interactions into account. The procedure is based on an exact closed form solution of the system equations and does not rely on ...
openaire   +1 more source

Modulation of current-source converters from gating signals for voltage-source converters

2006 37th IEEE Power Electronics Specialists Conference, 2006
This paper presents an algorithm to convert the PWM gating signals for a voltage-source converter (VSC) to the signals suitable for gating a current-source converter (CSC). The proposed algorithm requires only the VSC-PWM output signals, therefore, it is easy to be implemented.
Huu-Phuc To, M. Faz Rahman, Cohn Grantham   +2 more
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Voltage Tolerance Testing of Three-Phase Voltage Source Converters

IEEE Transactions on Power Delivery, 2005
This paper proposes a protocol for testing the immunity of three-phase self-commutated converters to voltage dips. An overview of voltage dips due to short circuits and earth faults that may affect a converter is given and their effect on the converter is demonstrated through simulation.
A. Sannino, M.H.J. Bollen, J. Svensson
openaire   +1 more source