Results 151 to 160 of about 206 (201)
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Novel random pulse position modulation for three-phase four-leg inverters
Proceedings of the Institution of Mechanical Engineers Part I: Journal of Systems and Control Engineering, 2018Aiming at improving the harmonic spectra spreading effect, two randomized pulse position modulation strategies are proposed for three-phase four-leg inverters. Based on the volt-second balance law and the fixed switching frequency, the first proposed strategy places the center randomly during one carrier cycle with a limited degree of freedom, and the ...
Tinglong Pan, Dinghui Wu
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Digital-Scalar PWM Approaches Applied to Four-Leg Voltage-Source Inverters
IEEE Transactions on Industrial Electronics, 2013In this paper, we present two modulation schemes for generating unbalanced voltages by means of four-leg voltage-source inverters. The first modulation is an extended scheme of a digital-scalar pulsewidth modulation previously proposed for controlling three-leg inverters.
F F Costa +2 more
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Switching-Cell Four-Leg Current Source Inverter
IEEE Transactions on Industrial Electronics, 2021Conventional current source inverter (CSI) suffers from open-circuit problem during switch transition. Thus, overlap-time should be inserted in the gate signals for safe commutation. The overlap-time distorts output current waveforms and increases total harmonic distortion of output current.
Duc-Tuan Do, Honnyong Cha, Fazal Akbar
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2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC), 2013
A novel dual-output four-leg inverter topology is proposed in this paper. The proposed inverter which is able to provide two three-phase voltage sets of independent magnitudes and frequencies is operationally equivalent to two four-leg inverters working independently though with a reduced number of semiconductor switches and hence gate drive and ...
M. Azizi +3 more
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A novel dual-output four-leg inverter topology is proposed in this paper. The proposed inverter which is able to provide two three-phase voltage sets of independent magnitudes and frequencies is operationally equivalent to two four-leg inverters working independently though with a reduced number of semiconductor switches and hence gate drive and ...
M. Azizi +3 more
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Simulation of three level inverter with four leg
2008 9th International Conference on Actual Problems of Electronic Instrument Engineering, 2008The paper presents an urgent problem of modem aircraft power supply development. Paper proposes three level inverter with four leg for frequency converter systems. Simulation results and analysis are presented.
A.V. Geist, S.A. Kharitonov
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A new 3D-SVPWM algorithm for four-leg inverters
2009 IEEE International Electric Machines and Drives Conference, 2009A new algorithm of tetrahedron determination applied to the SVPWM control of four leg inverters is presented in this work. Indeed during the last years two main families of works were existing under this subject, the first one used the αβγ frame , while, the second one used the abc frame.
A Kouzou, M.O Mahmoudi, M.S Boucherit
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A hybrid two-four leg H-bridge inverter
2017 IEEE Energy Conversion Congress and Exposition (ECCE), 2017This paper proposes a 5-level single-phase multilevel inverter topology with reduced number of components. In order to validate the proposed structure, simulation and experimental results are presented. In addition, the proposed topology is compared with an existing counterpart structure in terms of number of levels and number of devices and value of ...
Abinadabe S. Andrade +1 more
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Modulated Model Predictive Current Control of a Four-Leg Inverter
2020 11th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC), 2020A novel modulated model predictive current control for a two-level four-leg voltage source inverter is proposed in this paper. The proposed scheme is designed by combining the operating principles of traditional predictive control with the three-dimensional space vector modulation to enhance the output power quality, while producing fixed switching ...
Venkata Yaramasu +5 more
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Predictive Duty Cycle Control for Four-Leg Inverters With ${LC}$ Output Filter
IEEE Transactions on Industrial Electronics, 2021Three-phase four-leg inverter is a well-known solution to handle unbalanced and nonlinear loading conditions in three-phase transformerless uninterruptible power supply applications. For such power converters, finite control set model predictive control (FCS-MPC) is considered as a promising control alternative due to its simplicity, fast dynamic ...
Dan Xiao +2 more
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Control methods for four-leg voltage source inverter
2012 International Conference on Devices, Circuits and Systems (ICDCS), 2012Four-leg voltage source inverters are more advantageous than 3-leg voltage source inverters in such a way by the greater utilization of DC link voltage, independency of the modulation factor of load current and avoidance of superposition of a DC component with the AC output voltage. Four-leg voltage source inverters require a balanced sinusoidal output
N. Amutha Priya, M. Carolin Mabel
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