نتایج جستجو برای: power harmonic filter

تعداد نتایج: 639391  

2013
Harinath Saggu V. K. R. Mohan Rao

In Isolated power systems the power quality problem is compounded as the drive converter loads are likely to fluctuate in conjunction with mining or exploration areas. The use of compensators in improving power quality of isolated power systems is considered. The roles of the compensators are to mitigate the effects of momentary voltage sags/swells, and to control the level of harmonic distorti...

2013
P. Kishore Kumar

In this paper, Design of Hybrid series active filter (HSAF) for Harmonic reduction and reactive power compensation in single phase systems is represented. The HSAF consists of the series combination of two single tuned LC filters which are tuned to 3 rd and 5 th harmonics and an active filter. Discrete Fourier transformation is used as the control technique. Simulation results using MATLAB show...

2016
Saima Ashraf Anita Khosla Abdul Hamid Bhat B. Singh K. Al-Haddad A. Chandra

In recent years, there is tremendous growth in the use of power electronic devices in every sphere but in nonlinear loads, it has problem of drawing the two important limitations; draws the non-sinusoidal current and reactive power from source which in turn effects the power quality. This paper presents the performance evaluation of unified power quality conditioner (UPQC) for current and volta...

2006
M. GHANDCHI S. H. HOSSEINI S. GHAEMI

The aim of this paper is computing of the optimum duty cycle and inductance using Genetic Algorithm to minimize tracking error and operating costs by means of a new current reference. Such a current reference is able to share the responsibilities in power quality deterioration between supply and customer, making the filter to deliver a current with a lower harmonic content, which means a lower ...

2012
Hanny H. Tumbelaka Masafumi Miyatake

This paper proposes a three-phase four-wire currentcontrolled Voltage Source Inverter (CC-VSI) for both power quality improvement and PV energy extraction. For power quality improvement, the CC-VSI works as a grid current-controlling shunt active power filter to compensate for harmonic and reactive power of loads. Then, the PV array is coupled to the DC bus of the CC-VSI and supplies active pow...

2011
R. Balamurugan

Problem statement: Harmonic analysis is a primary matter of power quality assessment. Its main intention is to check the utility whether it is delivering the loads without any deviations in voltages and currents. The problem is due to proliferation of Electronic converters and power electronics which gave birth to numerous new applications, offering unmatched comfort to the customers. Approach:...

Journal: :Electronics 2022

Nowadays, AC distributed power networks are facing many challenges in guaranteeing and improving the required level of quality indices with increasing nonlinear, time-variable unbalanced loads. Power can benefit from avoiding minimizing different problems, such as frequency fluctuation Total Harmonic Distortions (THDs), by using filters, Hybrid Active Filters (HAPFs). Therefore, attention towar...

2017
Ranga Reddy

A transformer less hybrid series active filter is proposed to enhance the power quality in singlephase systems with critical loads. This thesis assists the energy management and power quality issues related to electric transportation and focuses on improving electric vehicle load connection to the grid. The control strategy is designed to prevent current harmonic distortions of nonlinear loads ...

Journal: :Asian Journal of Research and Reviews in Physics 2022

Aims: To carried out performance analysis of a shunt active power filter (SAPF) for harmonics mitigation.
 Study Design: Experimental design through simulation studies using P-Q Theory and proportional integral controller.
 Place Duration Study: Department Physics, Nasarawa State University Keffi, main campus, Nigeria, between October 2020 September 2021.
 Methodology: Primary se...

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