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Multipulse inverter structures with low voltage distortion
2016 10th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG), 2016A novel approach to the voltage source inverters (VSI) construction is presented in the paper. The invented inverter structures allow to operate several DC/AC converters in parallel resulting in lower voltage distortions at extremely low switching frequency.
Ryszard Strzelecki +3 more
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Classification of low voltage distribution networks by means of Voltage Distortion
2005 IEEE Russia Power Tech, 2005Determination of power quality becomes more and more important in the future. Low voltage networks are usually large and very complex. Therefore the calculation of power quality parameters by modeling as equivalent network is hardly possible in practice.
P. Schegner +5 more
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Optically-supplied voltage transducer for distorted signals in high-voltage systems
IEEE Transactions on Instrumentation and Measurement, 2000A new approach to the implementation of a measurement transducer for high-voltage (HV) electric power systems is presented. The power supply for the HV section of the measurement system, together with the required galvanic isolation, is obtained by means of an innovative energy transfer technique from the low-voltage to the HV section.
SVELTO, CESARE +2 more
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Online phase current and voltage offset calibration using inverter voltage distortion
2017 IEEE 12th International Conference on Power Electronics and Drive Systems (PEDS), 2017Precise current and voltage sensing is crucial for accurate control of power electronic systems. Due to parasitic effects such as the temperature dependency of analog circuit components, the measured currents and voltages are subject to sensor offset drift.
Michael Schubert +3 more
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A rapid voltage detection method for low voltage ride through under distorted voltage conditions
2015 IEEE International Conference on Mechatronics and Automation (ICMA), 2015This paper deals with a novel voltage detection method for low voltage ride through under distorted voltage conditions. According to the new Grid Codes, the photovoltaic (PV) system should keep connected with the grid and inject the acquired reactive power as soon as possible when the grid voltage sags.
Liang Zhou +3 more
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The Impact of Public Lighting on Voltage Distortion in Low-Voltage Distribution Systems
IEEE Power Engineering Review, 2001Harmonic distortion has become a main concem in electric distribution systems during the last years. Several public utilities are experiencing harmonic problems on their networks and some of them started to monitor the situation of the MV and LV distribution networks. Recently, the operation of the MV and LV networks of the AEM Torino (the city utility)
E. Bompard +4 more
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Probabilistic modeling of industrial systems for voltage distortion analyses
Ninth International Conference on Harmonics and Quality of Power. Proceedings (Cat. No.00EX441), 2002Referring to the IEEE industrial test system for harmonic modeling and simulation, the system impedance probabilistic model accounting for parameter uncertainty, load and supply variability is developed. Such a model together with the probabilistic model of the current pollution produced by an ASD is utilized to evaluate voltage harmonic and ...
R. CARBONE +3 more
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Power Factor Correction for Distorted Bus Voltages
Electric Machines & Power Systems, 1987ABSTRACT This paper deals with the correction of the power factor of the load when the bus voltage contains harmonics. The various optimization criteria are discussed for determining the optimal capacitor for power factor correction, The performance of the obtained capacitor is discussed by means of numerical examples.
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Bayes parametric estimation of insulation reliability under distorted voltage
2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, 2014Estimating the useful life of power system components is of considerable importance both in planning, to properly assess the costs, and in the management of such systems, to effectively schedule maintenance programs. The paper discusses the reliability of the insulation of power system components on the basis of well-known life models of such devices ...
E. Chiodo, MAZZANTI, GIOVANNI
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Control Strategy for Dynamic Voltage Restorer Under Distorted and Unbalanced Voltage Conditions
2019 IEEE International Conference on Industrial Technology (ICIT), 2019Under the condition where power grid voltage is unbalanced and distorted, dynamic voltage restorer (DVR) is used to compensate the negative sequence voltage and harmonic voltage. In this paper, a novel double closed-loop control strategy is presented.
Sen Zhang +7 more
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