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mitigation of harmonics in embedded systems



Harmonics mitigation of industrial power system using passive filters
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ABSTRACT With the development of modern industrial technology a large number of non- linear loads are used in power system, which causes harmonic distortion in the power system. At the same time the power quality and safe operation becomes inferior. Therefore

A self-tuning filter for the mitigation of power system harmonics
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A bstract This thesis presents a novel self-tuning filter for the mitigatioti of power system harmonics. The device is based on the passive filter method with the inductive element being a variable reactor. A new type of variable reactor is introduced. The thyristor linked

Mitigation of harmonics and power quality improvement for grid connected wind energy system using UPFC
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ABSTRACT The wiind energy generation, utilization and its grid penetration in electrical grid are increasing worldwide. The wind generated power is always fluctuating due to its time varying nature and causing stability problem. Unified Power Flow Control (UPFC) is used

Analysis and Mitigation of Harmonics in Wind Turbine Transformers
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Abstract The goals of this project are to study the effects of current harmonics generated by a Doubly-Fed Induction Generator (DFIG) and to create a reduced scale proof-of-concept of a single phase active filtering system designed to reduce non-fundamental current

Mitigation of harmonics using thyristor based 12 pulse voltage source PWM rectifier
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Abstract Three-phase thyristor rectifiers have been used in industries for obtaining a variable dc voltage, but they have a problem of including large lower-order harmonics in the input currents. For high-power applications, a 12-pulse configuration is useful for reducing the

Comparative Analysis on Control Methods of Shunt Active Power Filter for Harmonics Mitigation
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Abstract: This paper presents an overview of different control methods which are applied on Shunt Active Power Filter to achieve harmonics reduction and power factor improvement. In recent decades, the world has seen an expansion in the use of non-linear loads. These

Mitigation of Harmonics in a Three-Phase, Four-Wire Distribution System using a Systemof Shunt Passive Filters
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ABSTRACT Three-phase four-wire distribution systems are very common and widely used in commercial and industrial installations and therefore power systems harmonics is an area that merits a great deal of attention. Advancement in semiconductor devices has fuelled

Mitigation of Harmonics and Inter-harmonics in VSI-Fed Adjustable Speed Drives
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Abstract The components of harmonics are integral multiple of the fundamental component and the components of inter-harmonics are are non integral multiple of the fundamental component. AC-DC-AC conversion systems used in variable speed drive are sources of

Analysis of a Shunt Active Power Filter for mitigation of harmonics caused by Compact Fluorescent Lamps
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Abstract Compact Fluorescent Lamps (CFLs) are being used in energy efficient lighting and illumination applications. These lamps draw a non-sinusoidal current waveform that is rich in harmonics. While the detrimental effect of any individual unit on the power system is very

Mitigation of Harmonics in a grid connected DFIG Wind Power System
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ABSTRACT The inevitability of power electronics devices for reliable performance of renewable energy sources in general and wind power system in particular has brought various power quality issues including harmonics. In this paper a single tuned notch LCL

Mitigation of Harmonics in AC Drive by using multi-Pulse Transformer Solution
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Abstract: With the increasing of use of power electronic controlled variable speed drives in industries, power quality distortion in electric power system has become a serious issue in recent years. In steel plants, because of presence of more number of adjustable speed

Mitigation of Harmonics in Distribution System Using SAPF
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ABSTRACT: The typical loads in the commercial buildings comprise of many single phase and three phase loads which includes non-linear loads. These loads are highly sensitive for any input variations in voltage. The performance of the electrical equipment gets

Mitigation of Harmonics by Three-Phase Voltage Source PWM Rectifier
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Abstract-This paper is concerned with the design and simulation of a pulse width modulation (PWM) rectifier for three-phase Permanent Magnetic motor drive. Based on the mathematical model of PWM rectifier, the dual-close-loop engineering design with decoupled feed-

Mitigation of Harmonics by Shunt Active Power Filter using Synchronous Detection Method
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Abstract:In recent days the usage of non-linear loads are becoming enormous which gives an alarming signal to power system and power engineers. This paper deals with design, simulation experimentation of a shunt active power filter (SAPF) to improve power quality.

Mitigation of Harmonics and EMI in Power Converters
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Abstract This paper proposes a methodology to reduce the power quality problems and to mitigate current harmonic in the push pull converter using active filter and common mode noise filter. This method is used for common mode current noise reduction and Total

Mitigation of Harmonics in Distribution System Using D-STATCOM
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Abstract:This paper deals with the performance, analysis of, operating principles of a new generation of power electronics based equipment called Distribution Static Compensator (D- STATCOM) aimed at enchancing the reliability, and quality of power flow in low voltage

Mitigation of Harmonics in Voltage flicker Compensation using STATCOM
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Abstract Voltage flicker and harmonics are the power quality problems which are introduced to the power system as a result of nonlinear and stochastic behavior of the arc furnace operation. To analyze harmonic and flicker generated by an arc furnace, accurate arc

PROPAGATION AND SINGLE-TUNED FILTER BASED MITIGATION OF HARMONICS IN DISTRIBUTION NETWORKS
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Abstract: The paper analyses harmonic propagation and mitigation in realistic, large distribution network under different operating conditions. Total voltage harmonic distortion (THDV) levels are established for different loading and operating conditions and different

MITIGATION OF HARMONICS IN AC DRIVE BY USING MULTI-PULSE TRANSFORMER SOLUTION
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ABSTRACT: With the increasing of use of power electronic controlled variable speed drives in industries, power quality distortion in electric power system has become a serious issue in recent years. In steel plants, because of presence of more number of adjustable speed

Mitigation of Harmonics in Induction Motor using PWM Technique
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Abstract-The number of industry applications in which induction motors are fed by static frequency inverters is growing fast and, although much has already been done within this field, there is still a lot to be studied regarding such applications. The advance of variable

MITIGATION OF HARMONICS BY USING MULTI LEVEL INVERTER BASED SHUNT ACTIVE FILTER FOR POWER LINE CONDITIONER
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ABSTRACT Shunt Active Power Filter (APF) or Active Power Line Conditioner (APLC) is designed and implemented for power quality improvements in terms of current harmonics and reactivepower compensation. The widespread use of non-linear loads in industrial,

Mitigation of Harmonics in Oil Field Electric Systems Using a Centralized Medium Voltage Filter
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Abstract: Variable frequency drives are increasingly being used in oil fields to operate pump jacks. Significant harmonic distortions are expected for such applications. Two schemes have been proposed to mitigate the harmonic distortions. One scheme involves a

MITIGATION OF HARMONICS IN INVERTER
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Abstract In recent years power electronic converters are widely used in industrial as well as domestic applications for the control of power flow for automation and energy efficiency. Most of the time these converters draw harmonic current and reactive power from AC

Hybrid Filter System for Optimum Performance of Harmonics Mitigation Process
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Abstract:Conventional passive filter was the most compensator used to overcome harmonics problem. Unfortunately, stand alone passive filter has some drawback related to resonance and antiresonance phenomena. Hybrid system filtering involves shunt passive

Mitigation of Voltage sag and Harmonics in Grid connected Wind Energy System using STATCOM
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Abstract: Power quality gains its importance with the introduction of sophisticated electrical gadgets. The performances of these devices are sensitive to the quality of input power supply. Various power quality problems results in failure or mal-operation of end user

MITIGATION OF HARMONICS WITH THREE-PHASE UPS SYSTEM BY SPWM FOR AC DRIVE
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Abstract: This paper presents the design of a highperformance sinusoidal pulse width modulation (SPWM) controller for three phase uninterruptible power supply (UPS) systems that are operating under nonlinear loads. The inverter is responsible for synthesizing

Mitigation of Harmonics in Oil Field Electric Systems Using Multiple Low Voltage Filters
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Abstract: Variable frequency drives are increasingly being used in oil elds to operate pump jacks. Signicant harmonic distortions are expected for such applications. Two schemes have been proposed to mitigate the harmonic distortions. One scheme involves a

Mitigation of Harmonics in Dispersed Load System By Using Hybrid Compensation Methods
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Abstract-The nonlinear loads in residential area is increasing day by day. Due to this nonlinear loads, harmonics are generated and this further complicated by the installation of capacitor banks connected to the distribution system. The harmonic resonance will be

Particle Swarm Optimization Approach for Mitigation of Harmonics in Multilevel Inverters: A Review
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Abstract:Multilevel inverter technology has emerged recently as a very important alternative in the area of high-power mediumvoltage energy control. Using multilevel inverters application in fuel cell, solar cell wind turbines is increasing now a day's

Study of Mitigation of Current Harmonics using Hysteresis Current Controller
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ABSTRACT Power Quality problems are becoming most important issues for today's power system engineers. Major use of power electronics appliances has increased the harmonics disturbances in power systems. The harmonics are basically due to presence of non-

Mitigation of Non-Eliminated Harmonics of SHEPWM Three-Level Multipulse Three-Phase Active Front End Converters with Low Switching Frequency for
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Abstract:Three-Level NPC Active-Front-End Three-Phase (3LAFE) converters can be applied to high-power medium voltage applications, with 4-quadrant unity-power-factor operation, allowing a broad range for power conversion systems, such as decentralized

MITIGATION OF CURRENT HARMONICS USING SHUNT ACTIVE POWER FILTER
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ABSTRACT A study on the shunt active power filter is brought out in this paper in order to mitigate source current harmonics due to the increasing non-linear loads. The shunt active power filters provide dynamic compensation of current harmonics. The shunt active power

Proper selection of passive and active power quality filters for the mitigation of mainsharmonics
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Abstract The steady increase in non-linear loads on the power supply network such as, for instance, variable speed motor drives (VSDs), raises questions about power quality and reliability. In this respect, a great deal of attention has been focused on harmonics as they

A Novel Mitigation Method of Harmonics in Multi Pulse Diode Front-end Rectifier Systems under Voltage Unbalance
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Abstract: Multipulse rectifier system has been shown to be a cost-effective harmonic solution in many industries where IEEE 519 is specified. However, it is susceptible to poor quality of the input source of the power distribution system where the phase un-balance of the

Mitigation of Line Current Harmonics Using Shunt Active Filter With Instantaneous Real and Reactive Power Theory
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Abstract: This paper present the mitigation of line current harmonics using control of shunt active power filter (SAPF). The three phase system is connected to nonlinear load which cause harmonics to affect the power system. The control of shunt active power filter is not

Mitigation of the Harmonics with PEBBS Based Multi-Pulse Converter and She
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Abstract: The demand of power-electronic devices is drastically increasing in several applications. The Power Electronic Building Blocks (PEBBs) is one such device which increases the reliability of the power-electronic converters and minimizes their cost. In

Mitigation of Non-Eliminated Harmonics of Three-Level Multipulse Three-Phase Active Front End Converters with Low Switching Frequency
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ABSTRACT A Three-Level 12 pulse Three-Phase Active Front End ensures reduced low order harmonics influence and therefore minimizes volume and amount of network side filters. This paper presents the experimental study concerning the regenerative unity-

Mitigation of Lower Order Harmonics in a Grid-Connected Single-Phase PV Inverter
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Abstract: In this paper, a simple single-phase gridconnected photovoltaic (PV) inverter topology consisting of a boost section, a low voltage single-phase inverter with an inductive filter, and a step-up transformer interfacing the grid is considered. Ideally, this topology will

MITIGATION OF LOWER ORDER HARMONICS IN A GRID CONNECTED THREE PHASE PV INVERTER
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Abstract: In this paper simple single-phase grid connected photovoltaic (PV) inverter topology consisting of a boost section, a low voltage Threephase inverter with an inductive filter, and a step-up transformer interfacing the grid is considered. Ideally, this topology will

Mitigation of Lower Order Harmonics in a Grid-Connected Single-Phase PV Inverter
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Abstract: In this paper, a simple single-phase grid-connected photovoltaic (PV) inverter topology consisting of a boost section, a lowvoltage single-phase inverter with an inductive filter, and a step-up transformer interfacing the grid is considered. Ideally, this topology will

A Study of Hysteresis Band Current Control Scheme For Shunt Active Power Filter Used ForHarmonics Mitigation
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Abstract:This paper gives an analysis of harmonic currents in power electronics equipment produced by nonlinear loads.. Shunt active power filters (APF) play a key role to reduce harmonics current generated by nonlinear loads. Impact of shunt active power filter (APF)

Real time digital simulation of shunt active filter for mitigation of current harmonics with PQ theory
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The main objective of this paper is to develop PI and Fuzzy logic controllers to analyze the performance of instantaneous active and reactive power (pq) control strategy for extracting reference currents of shunt active filters under balanced, un-balanced and balanced non-

MODELING AND SIMULATION OF A DYNAMIC VOLTAGE RESTORER FOR VOLTAGE SAGMITIGATION AND HARMONICS ELIMINATION.
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ABSTRACT: Power quality has become an important issue in recent years due to the sensitivity of new equipment to its variations. Custom power devices are used to overcome power quality problems. Dynamic voltage restorer (DVR) is one of the most efficient and


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