Study on Harmonic Identification and Mitigation Using APF in Distribution System Consisting of Single Non Linear Load

2021 ◽  
pp. 121-133
Author(s):  
S. V. D. Anil Kumar ◽  
K. Ramesh Reddy
Keyword(s):  
Distribution System ◽  
Linear Load ◽  
Non Linear ◽  
Non Linear Load

Economic assessment of non-sinusoidal energy in distorted distribution systems

2019 ◽  
Vol 13 (1) ◽  
pp. 196-211
Author(s):  
Narinder Kumar ◽  
Ashwani Kumar
Keyword(s):  
Energy Expenditure ◽  
Distribution System ◽  
Distribution Systems ◽  
Economic Assessment ◽  
Harmonic Load ◽  
Content Type ◽  
Linear Load ◽  
Non Linear ◽  
Non Linear Load ◽  
Voltage Harmonics

Purpose The purpose of this paper is to analyze annual energy expenditure in the presence of non-linear load and substation voltage harmonics in distribution systems. Economic assessment of non-sinusoidal energy is a challenging task that involves complex computations of harmonic load powers and harmonic line losses. Design/methodology/approach The paper evaluates fundamental and non-sinusoidal components of electrical energy by applying backward/forward sweep technique in distorted distribution systems. This work involves harmonic power computations at the substation by including harmonic losses occurring in various lines of the distribution system. Findings The paper found that annual energy expenditure significantly depends upon the non-linear load, supply voltage harmonics and type of tariff structure considered in the distribution system. Impact of individual harmonic orders on the energy billing is also assessed. Originality/value The paper concludes that considering harmonic distortions in the distribution system analysis would help electricity regulators formulate adequate pricing structures, which would further generate appropriate economic signals for electricity utility and the consumers.

scholarly journals Report on Power Compensation and Total Harmonic Distortion level Analysis

2016 ◽  
Vol 6 (6) ◽  
pp. 2577
Author(s):  
Nikita Ramesh Kalaskar ◽  
Rajesh Holmukhe
Keyword(s):  
Power Factor ◽  
Distribution System ◽  
High Speed ◽  
Harmonic Distortion ◽  
Electrical Equipment ◽  
Nonlinear Load ◽  
Distortion Level ◽  
Linear Load ◽  
Non Linear ◽  
Non Linear Load

<p>In the chart of Indian science based industry, pharmaceutical industry is on top position. So it<em> </em>is essential to fulfil such critical requirement or demand, production should be with high speed. For such high production, using of software based machineries, electronic circuits are been used. By using such electronic based equipment’s and machineries, it is obvious day by day increasing non-linear load of the industry which lead to lagging power factor. In electric system nonlinear load with low power factor draws more current from source. So because of such high current drawn, life of switchgear, wire and other electrical equipment decreases. So due to large equipment and wasted energy, the electrical utilities company usually charge a higher cost to industrial customer for the constant logging power factor. To improving the lagging power factor, industry may prefer to install capacitor bank in series. But installation of capacitor power bank leads to the increment of total harmonics distortion level. In common plant, containing power factor correction capacitor, It is been seen that normal resonant frequency falls normally in the range of 5<sup>th</sup> to 13<sup>th</sup> harmonics. So this non-linear load leads to inject current at 5<sup>th</sup>, 7<sup>th</sup>, 11<sup>th</sup> and 13<sup>th</sup> harmonics. It will usually result on producing the problems with switchgears, damaged capacitor banks and failure to the electrical distribution system.</p>

Report on Power Compensation and Total Harmonic Distortion level Analysis

2016 ◽  
Vol 6 (6) ◽  
pp. 2577
Author(s):  
Nikita Ramesh Kalaskar ◽  
Rajesh Holmukhe
Keyword(s):  
Power Factor ◽  
Distribution System ◽  
High Speed ◽  
Harmonic Distortion ◽  
Electrical Equipment ◽  
Nonlinear Load ◽  
Distortion Level ◽  
Linear Load ◽  
Non Linear ◽  
Non Linear Load

<p>In the chart of Indian science based industry, pharmaceutical industry is on top position. So it<em> </em>is essential to fulfil such critical requirement or demand, production should be with high speed. For such high production, using of software based machineries, electronic circuits are been used. By using such electronic based equipment’s and machineries, it is obvious day by day increasing non-linear load of the industry which lead to lagging power factor. In electric system nonlinear load with low power factor draws more current from source. So because of such high current drawn, life of switchgear, wire and other electrical equipment decreases. So due to large equipment and wasted energy, the electrical utilities company usually charge a higher cost to industrial customer for the constant logging power factor. To improving the lagging power factor, industry may prefer to install capacitor bank in series. But installation of capacitor power bank leads to the increment of total harmonics distortion level. In common plant, containing power factor correction capacitor, It is been seen that normal resonant frequency falls normally in the range of 5<sup>th</sup> to 13<sup>th</sup> harmonics. So this non-linear load leads to inject current at 5<sup>th</sup>, 7<sup>th</sup>, 11<sup>th</sup> and 13<sup>th</sup> harmonics. It will usually result on producing the problems with switchgears, damaged capacitor banks and failure to the electrical distribution system.</p>

scholarly journals Power Quality Improvement in Distribution System Using Parallel DSTATCOM

2018 ◽  
Vol 7 (4.24) ◽  
pp. 9
Author(s):  
Ahmed Mohammed Mohsin Alzubaidi ◽  
P. V. Ramana Rao
Keyword(s):  
Quality Improvement ◽  
Power Quality ◽  
Power Distribution ◽  
Distribution System ◽  
Power Distribution System ◽  
Synchronous Reference Frame ◽  
Linear Load ◽  
Non Linear ◽  
Power Quality Improvement ◽  
Non Linear Load

DSTATCOM is one among FACTS controllers to reduce harmonic effect in power system. Presence of non-linear loads induces harmonics to source components which in-turn affects other sensitive loads. Parallel custom devices share the compensating currents and as a result stress on individual custom device reduces. This paper presents power quality improvement using parallel DSTATCOM in power distribution system. The parallel DSTATCOM are controlled with a common single control scheme using synchronous reference frame theory. Proposed concept was implemented with MATLAB/SIMULINK software and results were discussed considering different loading conditions of the proposed system like balanced case non-linear load and unbalanced case non-linear load conditions.

scholarly journals SIMULATION OF A STATIC SYNCHRONOUS COMPENSATOR FOR A POWER SUPPLY SYSTEM WITH A NON-LINEAR LOAD

2020 ◽  
pp. 116-124
Author(s):  
Aleksei V. Makarov ◽  
Valeriy G. Makarov ◽  
Tatiana V. Makarova ◽  
Aleksei A. Petrov
Keyword(s):  
Simulation Model ◽  
Power Supply ◽  
Power Supply System ◽  
Supply System ◽  
Static Synchronous Compensator ◽  
Nonlinear Load ◽  
Electromechanical Systems ◽  
Linear Load ◽  
Non Linear ◽  
Non Linear Load

The purpose of the work is developing a simulation model of factory’s the power system, with a nonlinear load model, which is a 12-pulses thyristor invertor and a model of a static synchronous compensator, which is multi-level voltage invertor, based on H-bridge invertor. Also defining preliminary parameters for the design of a static synchronous compensator in order to meet the requirements for power factors and limits of voltage harmonic and interharmonic distortion specified for the point of common connection to the mains supply. The analytical and numerical methods of mathematical programming and control of electromechanical systems were used. VisualStudio and PSIM software products for developing a control system for electromechanical systems and compiling a simulation model of an industrial power supply system were used. As a result of the research, a simulation model of the power supply system of an industrial enterprise, a model of a nonlinear load and a static synchronous compensator were developed. The rated power of the static synchronous compensator is determined to reduce the consumption of reactive power and the magnitude of the higher harmonics of the current, at the point of common connection, during operating a non-linear load.

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