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Voltage-, Current-, and Z-source Converters
2017Some fundamental concepts are to be introduced in this chapter, such as voltage sources, current sources, impedance networks, Z-source, two-port network, impedance source converters, impedance networks converters.
Guidong Zhang, Bo Zhang, Zhong Li
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Control of LCL filter based voltage source converter
Proceedings of 14th International Power Electronics and Motion Control Conference EPE-PEMC 2010, 2010In 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.
ALTINAY, MERAL, ŞEHİRLİ, ERDAL
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Modelling and modulation of voltage source converter
2008 13th International Power Electronics and Motion Control Conference, 2008The basic operational principle of the three-phase voltage source converter system is the subject of this paper . This type of converter is regarded as well known. Despite this, there are some details worth analysing and describing. In the drawn-out analysis the aggregated transistor state function for one branch of the converter is introduced ...
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Bidirectional Voltage Source Converter for Microgrid
2019Microgrid is a small-scale power supply network associated with Distributed Energy Resources. Nowadays DC microgrid has become a new subject of research due to addition of renewable energy sources and electric vehicles for small buildings and residential. In this paper, we have taken review of previous published work and based on that we proposed solar-
Meghana Khobragade +2 more
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Catastrophic Bifurcation in Three-Phase Voltage-Source Converters
IEEE Transactions on Circuits and Systems I: Regular Papers, 2011Active pulse-width-modulated (PWM) voltage rectifiers are commonly used to convert ac power from a three-phase grid to a regulated dc voltage with unity input power factor. The output voltage regulation is normally achieved by an outer voltage feedback loop and a sinusoidal pulse-width-modulated (SPWM) inner current loop.
Meng Huang 0001 +3 more
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Current Regulation in Four-Leg Voltage-Source Converters
IEEE Transactions on Industrial Electronics, 2007Three-phase four-leg voltage-source converters by virtue of the fourth leg connected to the neutral points of the wye-connected loads effectively handle the zero-sequence currents and voltages occasioned by connected load impedance imbalances and/or nonlinearity of loads.
Gan Dong, Olorunfemi Ojo
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Nonlinear control of a voltage source converter
2010Due to its unique features such as controllable power factor, controllable bi-directional power flow, and rapid dynamic response, Voltage Source Converters (VSCs) have been widely used in various industrial applications such as distributed generation systems, power distribution systems, uninterruptible power supplies (UPS), AC motor drives, etc.
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Voltage Source Converter Control Under Unbalanced Grid Voltage
2021The conventional control of the voltage source converter (VSC) assumes that the input voltage is balanced. However, unbalanced voltage is a phenomenon that occurs frequently in actual industrial sites. If the grid voltage is unbalanced, THD increases due to voltage negative component, and low harmonic components appear in DC-link voltage, which ...
Ahmed G. Abo-Khalil, Ali M. Eltamaly
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A High Voltage Gain ZVT Quasi-Z-Source Converter With Reduced Voltage Stress
IEEE Transactions on Power Electronics, 2022Milad Heidari +2 more
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