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Cascade three-phase PLL for unbalance and harmonic distortion operation (CSRF-PLL)
IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society, 2014This paper presents a phase-locked loop (PLL) method aimed to provide an estimation of the phase angle and the amplitude of the fundamental positive sequence component of a three-phase reference signal subject to severe unbalance and high harmonic distortion. In addition the proposed scheme provides the estimation of the angular frequency, and both the
Gerardo Escobar +4 more
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Quantitative assessment of three phase supply voltage unbalance effects on induction motors
International Journal of System Assurance Engineering and Management, 2015In this work, the performance of the induction motor under unbalanced three phase supply voltage conditions is assessed. This study compares the effects of scalar and complex modeling of voltage unbalance on the induction motor performance parameters such as torque, current, losses, efficiency and power factor.
Fatma Zohra Dekhandji +2 more
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Voltage unbalance mitigation in LV networks using three-phase PV systems
2015 IEEE International Conference on Industrial Technology (ICIT), 2015In this paper a new method is proposed to mitigate voltage unbalance caused by single-phase solar inverters in low voltage (LV) networks. The method is based on uneven reactive power absorption and injection by three-phase solar inverters. Independent control of each phase is performed to achieve this uneven injection.
Cristina Garcia Bajo +4 more
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Experimental Evaluation of Unbalance and Distortion Indicators in Three-Phase Systems with Neutral
2007 IEEE Lausanne Power Tech, 2007The characterization of three-phase systems with neutral under unbalanced operation in the presence of waveform distortion is a key aspect in the power quality studies. This paper presents the application to a number of real cases of a unified framework providing a set of synthetic indicators capable to explain the individual effects of unbalance and ...
BATRINU, Florentin +6 more
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2019 IEEE 8th International Conference on Advanced Power System Automation and Protection (APAP), 2019
With the increasing unbalanced loads connect to the three-phase four-wire power system, three-phase unbalance caused by these loads will reduce the service life of electrical equipment and increase line loss. To solve these problems by reducing the three-phase unbalance, a three-level neutral point clamped compensator based on model predictive control ...
Nan Jin +4 more
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With the increasing unbalanced loads connect to the three-phase four-wire power system, three-phase unbalance caused by these loads will reduce the service life of electrical equipment and increase line loss. To solve these problems by reducing the three-phase unbalance, a three-level neutral point clamped compensator based on model predictive control ...
Nan Jin +4 more
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A Solution for Three-Phase System Unbalance Based on PWM AC Choppers
IECON 2006 - 32nd Annual Conference on IEEE Industrial Electronics, 2006This work presents a new solution for a problem frequently found by electricity suppliers: current unbalance in three-phase transmission lines. Previous solutions are shown in order to explain the need of a new solution. This solution is based on a PWM AC chopper, which is presented and explained.
Bernardo Cougo, Thierry Meynard
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Three-Phase Unbalance Management Based on Three-Phase Bridge Full Control Rectifier Circuit
2022 5th International Conference on Power and Energy Applications (ICPEA), 2022Fulu Yan +3 more
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Analysis of a three phase direct frequency changer for input unbalance correction
Conference Record of the Power Conversion Conference - Yokohama 1993, 2002Direct frequency changers are designed to work under a balanced input condition. The three phase power frequency input voltage of static power converters may be unbalanced either in phase or in amplitude. This paper discusses a novel technique to produce the output of the converter balanced when the input is amplitude unbalanced.
S.I. Khan, S.R. Khan, M.A. Rahman
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Research on Three-Phase Unbalance Compensation of Magnetic Control Transformer
2023Yaoliang Yan +12 more
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