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Boundary control of dynamic voltage restorers in voltage harmonic compensation
2006 37th IEEE Power Electronics Specialists Conference, 2006Dynamic voltage restorer (DVR) is used to provide load voltage support and protect sensitive load during voltage sags situation. However, voltage sags do not appear frequently and hence the utilization of the DVR is low. In order to increase the utilization of the DVR, the DVR should operate to compensate any load voltage instability especially the ...
Chung, HSH, Hui, SYR, Chan, PKW
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Harmonic considerations on low voltage systems
[Proceedings] IEEE 1991 Annual Textile, Fiber and Film Industry Technical Conference, 2002Guidelines are developed for applying capacitors and harmonic-producing loads on low-voltage systems. The subject is approached from a systems point of view for low voltage applications, emphasizing the system interaction effects and the means that can be used to minimize this interaction.
P.B. Steciuk, K.A. Puskarich, W.E. Reid
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High voltage test circuit for harmonic and impulse voltage stress
2015 16th International Scientific Conference on Electric Power Engineering (EPE), 2015The paper deals with testing possibilities of discharge activity influence to a medium voltage cable system. It was observed that the discharge activity in insulation systems of high voltage devices is higher when the power electronic is present. The aim is to create a test circuit which will simulate the influence of superposed impulses and harmonics ...
Martin Knenicky, Radek Prochazka
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Research on Harmonic Voltage Measurement Accuracy Based on AC Quantum Voltage
2020 Conference on Precision Electromagnetic Measurements (CPEM), 2020In this paper, factors affecting harmonic measurement accuracy were analyzed, which is based on AC quantum voltage. Two factors, the non-integer period sampling and the number of steps, that influence the harmonic measurement are identified. The sensitivity of each influential factor is verified by experiments.
Xitong Xu +6 more
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Influence of Harmonic System Voltages on the Harmonic Current Emission of Photovoltaic Inverters
2007 International Conference on Power Engineering, Energy and Electrical Drives, 2007Harmonic currents of photovoltaic (PV)-inverters show a significant dependency on the harmonic voltage content of the alternating current (AC)-system voltage. Measurements of harmonic currents were carried out in low-voltage (LV)-systems and under laboratory test conditions with adjustable harmonic content of the AC-voltage.
J. SCHLABBACH +2 more
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Intelligent solid-state voltage restorer for voltage swell/sag and harmonics
IEE Proceedings - Electric Power Applications, 2004Voltage swell/sag along with extended undervoltage conditions and voltage harmonics are of vital concern to the majority of industries today. A neural network control method for the problems of voltage sag/swell and harmonics is proposed. A novel topology of the AC-AC boost converter solves the problems of voltage swell/sag, while a voltage controlled ...
B.N. Singh, M. Simina
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Resistive voltage divider with two stage voltage buffer for harmonic measurement
2012 Conference on Precision electromagnetic Measurements, 2012The shielding, insulating bracket protection and two stage voltage buffer technology is adopted by resistive voltage divider. It can be used for the harmonic voltage measurement. The ratio error of the voltage divider is within 10 ppm from DC to 10 kHz.
Lei Wang +5 more
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Voltage harmonics generated by voltage-fed inverters using PWM natural sampling
IEEE Transactions on Power Electronics, 1988The harmonics generated by natural sampled pulse width modulation are investigated experimentally and by theoretical models for the outputs obtained with triangular and sawtooth carrier signals. These equations are valid for synchronous and asynchronous operation.
J. Hamman, F.S. van der Merwe
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Voltage Main Harmonic Level Influence on Harmonic Current Emission Modeling
2023 International Conference on Future Energy Solutions (FES), 2023Kamran Daniel +5 more
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International Survey on Voltage Harmonic Unbalance in Low Voltage Networks
2022 20th International Conference on Harmonics & Quality of Power (ICHQP), 2022Jayashree Yadav +3 more
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