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Compensation of unbalanced three-phase voltage supply in voltage source inverter
IEEE 2002 28th Annual Conference of the Industrial Electronics Society. IECON 02, 2003A control method for the compensation of unbalanced voltage supply that eliminates pulsating current in the DC link of a voltage source inverter is investigated. Such a pulsating current can have detrimental effects on operating properties of the drive as well as on the quality of power supply in the electrical vicinity of the inverter.
M. Chomat, L. Schreier
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IEEE Transactions on Power Delivery, 2017
This paper deals with an analytical model to evaluate the non-characteristic harmonics that are generated by three-phase three-wire voltage-source converters (VSCs) operating under unbalanced sinusoidal voltage condition. This model permits the calculation of the oscillating current on the VSC dc side considering the unbalanced voltages on its ac side.
Claudionor F. Nascimento +6 more
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This paper deals with an analytical model to evaluate the non-characteristic harmonics that are generated by three-phase three-wire voltage-source converters (VSCs) operating under unbalanced sinusoidal voltage condition. This model permits the calculation of the oscillating current on the VSC dc side considering the unbalanced voltages on its ac side.
Claudionor F. Nascimento +6 more
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Unbalanced Voltage Improvement Control of Virtual Synchronous Rectifier
2018 IEEE 8th Annual International Conference on CYBER Technology in Automation, Control, and Intelligent Systems (CYBER), 2018The popularity of power electronic applications in the power grid, making the system stability issues aroused widespread concern. The virtual synchronous machine makes it possible to control the stability of the system by simulating the damping and inertia characteristics of the motor.
Jun Jia, Yongbiao Yang, Kunyu Ji
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Current-voltage characteristics of unbalanced superconducting Wheatstone bridges
Journal of Applied Physics, 1995We compute the current-voltage characteristics of unbalanced superconducting Wheatstone bridges biased with constant and radio frequency current sources. An analytical expression for the critical supercurrent at which a nonzero voltage appears across the transverse junction of the bridge is derived.
M. Cahay, G. Qian, R. Kothari
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Q-hour meter performance under unbalanced voltage supply
8th International Conference on Harmonics and Quality of Power. Proceedings (Cat. No.98EX227), 2002This article investigates the error associated with reactive power and power factor when calculated from a set of watt-hour and Q-hour meters in a circuit where an unbalanced sinusoidal supply feeds a linear balanced load. An analytical expression of the error is derived in terms of the level of voltage unbalance.
Y. Baghzouz, M.D. Cox
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PWM Inverter Power Transfer Under Unbalanced Voltage Conditions
2006 First International Symposium on Environment Identities and Mediterranean Area, 2006PWM inverters working synchronously with mains are widely distributed in the applications using variable speed wind generators. They are part of the converters connected in the stator winding of the synchronous generators or in the wound rotor winding of induction generators.
Vladimir Lazarov, Deian Apostolov
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Algorithms for Characterizing Measured Three-Phase Unbalanced Voltage Dips
IEEE Power Engineering Review, 2002This paper addresses the problem of estimating the characteristics of three-phase unbalanced voltage dips from measured phase voltages. This is important for obtaining statistics on voltage dips and for obtaining information about the underlying event (e.g., the fault type). Two different algorithms are compared.
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Modelling and Quantification Methods of Voltage Sags and Voltage Unbalanced
2022 2nd International Conference on Innovative Sustainable Computational Technologies (CISCT), 2022Priyanka Yadav +3 more
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Integrative oncology: Addressing the global challenges of cancer prevention and treatment
Ca-A Cancer Journal for Clinicians, 2022Jun J Mao,, Msce +2 more
exaly
Flexible Step-Voltage Regulator for Unbalanced Distribution Networks
IEEE Transactions on Industry Applications, 2022Bevin K C +2 more
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