Harmonic currents
Harmonic Currents of Semiconductor Pulse Switching Converters
... of harmonic currents, which these switching converters take from the feed array, is still ...these currents is the use of pulse switching ...characteristic harmonic ones are minimized, but, on ...
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Active Power Filter Based on Adaptive Detecting Approach of Harmonic Currents
... of harmonic and reactive currents have been introduced into power grid, resulting in some problems such as voltage flicker, frequency variation, imbalance of three-phase problem, etc ...the harmonic ...
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Simulation Modeling and Analysis of Reactive Power Compensation using Thyristor controlled LC Compensator in smart grid
... system current THDisx of the worst phase are compensated to 7.5% for inductive case and 8.1% for capacitive case, in which the simulated THDisx satisfies the IEEE, 519-2014 standards [25]. Moreover, Figs. 4.7(c) and (f) ...
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Implications of the Large-Scale Deployment of Non-linear Loads
... exceeding 100%, implying a correspondingly low power factor and highly distorted current waveform. Such lamps draw a higher current than necessary for their rated power and hence shorten the effective capacity of the ...
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New Concept for Calculating DC Harmonic Voltages and Currents in BTB HVDC Converters
... Similar to Figure 4, Figure 8 shows the waveforms of the DC side in case of asynchronous interconnection between the rectifier at 60 Hz and the inverter at 50 Hz. However, this case is with different smoothing reactors ...
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ANALYSIS OF PWM CONTROLLED BUCK-BOOST AC VOLTAGE REGULATOR WITH MITIGATION OF VOLTAGE SAGS AND SWELLS
... The proposed circuit has the following characteristic: it can operate directly from the single-phase line and regulate the output voltage higher or lower steplessly. Furthermore, the input voltage phase synchronous ...
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Performance evaluation of shunt active power filters for different control strategies
... Supply currents are made sinusoidal with proposed control technique consisting of two sensors at the supply side and absence of harmonic detector which is present in the conventional control scheme of shunt ...
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Article Description
... the harmonic currents and reactive power are well compensated by both HAPFs and that the HAPF designed using the method based on PSO can obtain better filtering performance with lower THD ...the ...
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Fuzzy Controlled Multilevel Inverter Based Shunt Active Power Filter for Harmonics Reduction
... the harmonic currents generated by the non-linear ...the harmonic components from distorted line currents which in turn are utilized in the production of required reference compensation ...
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Single Stage Three-Phase PV System Applied to Microgrid for Power Quality Improvement
... load harmonic currents and compensating reactive ...and harmonic-free output voltages are provided to the ...inverter currents and dc-bus voltage are ...
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SIMULATION OF PWM CONTROLLED BUCK-BOOST AC VOLTAGE REGULATOR
... The proposed circuit has the following characteristic: it can operate directly from the single-phase line and regulate the output voltage higher or lower steplessly. Furthermore, the input voltage phase synchronous ...
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Novel Technique For The Reduction in Wind Power Generation S R A P Mallap Maddala & Grandhi Ramu
... the harmonic currents, the reactive power and source neutral conductor current in three-phase four-wire distribution system fed by non renewable source in wind by using a five-level cascaded H-bridge ...
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Role of Shunt Active Filter (SAF) for Mitigation of Harmonics in a Non-Linear Distributed System
... injected currents are meant to “cancel” the harmonic and reactive currents drawn by the non-linear ...and harmonic currents produced by linear loads from the grid current by injecting ...
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Seven Level Shunt Active Power Filter for Induction Motor Drive System
... common harmonic currents for diode or thyristor rectifier loads are of the 5th, 7th, 11th and 13th ...line currents, it is not possible to get high attenuation at the fundamental frequency due to the ...
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A Novel Current Control Technique For A Three Phase Statcom
... supply currents to be sinusoidal by using only a PI controller because the supply currents are not directly but indirectly controlled by regulating the filter currents which are the non-sinusoidal ...
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Power Control and Quality Management in DG Grid Interfaced Systems
... A. TOPOLOGY : Active power filters are power electronic devices that cancel out unwanted harmonic currents by injecting a compensation current which cancels harmonics in the line current. Shunt active power ...
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Integration of Artificial Intelligence Control to the Unified Power Quality Conditioner
... ABSTRACT: Modernization of the Industrial world is completely accompanied with growing power demands. It is very necessary to utilize the available power efficiently with as much less issues as possible rather than ...
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A Novel SAPF for Reduction of Harmonics & Reactive Power with FLC Fed Five-level Cascaded Inverter
... for harmonic and reactive power ...the harmonic currents, the reactive power and source neutral conductor current in three-phase four-wire distribution system by using a five-level cascaded H-bridge ...
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Vol 3, No 12 (2015)
... the harmonic currents will have a phase displacement of either +90◦ or −90◦ depending on harmonic ...The harmonic voltage amplitude for a hth harmonic can be expressed ...
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A Novel Fuzzy Repetitive Control Scheme Based Harmonic Suppression of Circulating Currents in Modular Multilevel Converters applications
... circulating currents. These harmonic currents will introduce extra power loss, increase current stress of power devices, and even cause instabili ty during ...current harmonic suppression have ...
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