total harmonic distortion levels
Power Quality Improvement by using Three Phase Adaptive Filter Control in Micro Grid
... Thus due to 3 phase fault the overall THD level increases from standard value according to IEEE standard. But the use of adaptive filtering technique reduces the THD level upto 0.88% as shown in fig.4.h)4 and make the ...
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Calculating Total Harmonic Distortion by Measuring Sine Wave
... Harmonic distortion may be measured by applying a spectrally clean sine wave voltage signal to the input of the amplifier under ...output harmonic spectrums (second, third, and fourth harmonics, ...
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Reducing Total Harmonic Content of 7-Level Inverter by Use of Cuckoo Algorithm
... the total harmonic distortion in multilevel inverters; in [15], genetic algorithm is also utilized to decrease the total harmonic distortion in the line voltage of a ...
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Applying MILP for 27 Level CMLIs to Obtain Low THD Values over Wide Voltage Range
... percentage total har- monic distortion till the 91st harmonic, then the result is included in the model and it is solved for different values of the output voltage, to get the switching pattern that ...
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Total Harmonic Distortion Minimization of Multilevel Converters Using Genetic Algorithms
... This paper proposes a general genetic algorithm (GA) approach by which the switching angles can be calcu- lated in the context of step modulation for multilevel in- verters. This solves the same problem with a simpler ...
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MULTI LEVEL STATCOM FOR HARMONIC REDUCTION
... the Total Harmonic Distortion effectively even though with the higher levels, capacitor voltage balancing is a ...on Total Harmonic ...
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Analysis of Total Harmonic Distortion for Grid Connected Photovoltaic Systems
... With the increasing higher power quality requirements for numerous industrial applications and renewable energy sources such as photovoltaic, wind, and fuel cells, classical three-level inverters have difficulty in ...
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Simulation and Comparison of Twenty Five Level Diode Clamped & Cascaded H-Bridge Multilevel Inverter
... voltage levels total harmonic distortion and components required is different for both cascaded H-bridge ...voltage levels but higher voltage levels not up to the ...The ...
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Shunt Hybrid Active Power Filter Improvement Based On Passive Power Filters Synthesis by Genetic Algorithm
... The parallel passive filters were implemented since 1920, to compensate harmonics created by non linear loads, provide the reactive power requested, and increase the capacity of transport of networks. The basic shunt ...
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Simulation with Experimental Measurement of Voltage Total Harmonic Distortion and Harmonic Frequency in Three-Phase Induction Motor fed from Inverter
... The even harmonics and its multiples will be zero since there is symmetry of waveform. The odd triplen harmonics (i.e., 3 rd , 6 th , 9 th harmonic order, etc.) cancel out each other since it circulates in the ...
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High Power Factor Bridgeless SEPIC Converter to Improve Total Harmonic Distortion
... SEPIC converter efficiency can be made better by eliminating the diode bridge which is present in the input side of the circuit; instead it requires large input inductor current and LC [r] ...
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Analysis of Total Harmonic Distortion Using Neuro Fuzzy in Renewable Energy Systems
... Variable Harmonic Impedance in Inverter-Interfaced Distributed Generation Unit for Harmonic Damping Throughout a Distribution Network," in IEEE Transactions on Industry Applications, ...System ...
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Investigation of Power Factor on Harmonic Effect due to Types of Voltage Source
... the distortion is high where the smallest distortion is sinusoidal waveform (about ...for harmonic waveform source, the harmonic 313 is large (about ...20.114%) harmonic 357 (about ...
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An Effective Technique to reduce Total Harmonic Distortion in Distribution Network by using Neural Network
... these harmonic is very essential to maintain the present power quality , for optimum performance of the system without any interruption in the system and also for achieving high efficiency from the ...
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Space Vector Pulse Width Modulation: A Technique to Mitigate the Total Harmonic Distortion
... In Power System applications one major problem in output is distortion. For mitigation of this different methodologies have been used. With advances in Solid-State Power Electronics Devices, various Pulse Width ...
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Artificial Neural Network Controller for Reducing the Total Harmonic Distortion (THD) in HVDC
... Abstract— A neural network based space vector modulation (SVM) of voltage source inverter is proposed. The voltage source converter (VSC) is highly used in high voltage direct current (HVDC) transmission so that a ...
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THD Analysis of Carrier Overlapping PWM Strategies for DCMI With Reduced Number Of Switches
... low total harmonic distortion and high efficiency& are suitable for high voltages and high current application and also have higher efficiency because the devices has been switched at a lower ...
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Modified PSO Based SAPF Control Strategy for Harmonic Elimination and Power Factor Correction in Distribution System
... This section shows the simulation results of Test power system with SAPF and change of PI values for 100 Generations. The source and load current waveforms for the optimized value of PI are given in this section[11]. Fig ...
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A Comparative Study of PWM Strategies for Cascaded Z-Source Multilevel Inverter
... Multilevel inverters (MLI) have emerged as the solution for working with higher voltage levels. Multilevel inverters include an array of power semiconductors and capacitor voltage sources, the output of which ...
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Boosting of Harmonic distortion using Fuzzy and PID controlled Active Power Filter
... of total harmonic distortion needs some effective devices, which are capable to nullify the effect of harmonics under varying, load condition? Here proposed controlled active filters for the ...
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