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 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>

The Effects of Total Harmonics Distortion for Power Factor Correction at Non-Linear Load

2016 ◽  
Vol 7 (2) ◽  
pp. 551 ◽  
Author(s):  
R. A. Rani ◽  
Shakir Saat ◽  
Yusmarnita Yusop ◽  
Huzaimah Husin ◽  
F. K. Abdul Rahman ◽  
...  
Keyword(s):  
Power Factor ◽  
Single Phase ◽  
Power Factor Correction ◽  
Harmonic Distortion ◽  
The Other ◽  
Linear Load ◽  
Non Linear ◽  
Sinusoidal Waveform ◽  
Non Linear Load ◽  
The Relationship

This paper presents the effect of total harmonic distortion (THD) in power factor correction (PFC) at non-linear load. This study focuses on the relationship between THD and PFC. This is beacuse,the power factor affects THD. This occurs in power system as we have variety of loads, i. e linear load or non-linear load. The variety of loads will influence the sinusoidal waveform, which comes out from harmonic distortion. Thus, based on this study, we can compare the effective method in improving the power factor as it will not disturb the performance of THD. The focus of study is on the single phase load, where the voltage restriction is 240 V.  The analysis will  only focus on the consumer, which depends on the variety of non-linear load. Besides, the parameters for analysis are based on the percentage of THD and the value of power factor. The instrument for measuring the parameter is based on power factor correction device or technique. On the other hand, the method that was used for this study is based on simulation which incorporated the Multisim software. At the end of ths study, we can choose the most effective method that can be used to improve the power factor correction without disturbing the THD.

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.

scholarly journals Advanced power transformer with improved parameters for rural electrical networks

2021 ◽  
Vol 59 (3) ◽  
pp. 366-377
Author(s):  
M. A. Prishchepov ◽  
A. I. Zelenkevich ◽  
V. M. Zbrodyga
Keyword(s):  
Power Supply System ◽  
Single Phase ◽  
Power Transformer ◽  
Electrical Equipment ◽  
Electrical Networks ◽  
Power Losses ◽  
Linear Load ◽  
Non Linear ◽  
Harmonic Components ◽  
Non Linear Load

The problem of power quality supply is relevant for rural electrical networks, due to long distance and branching, as well as connection of a large number of single-phase and non-linear loads. Asymmetry of electrical loads causes voltage asymmetry, which adversely affects the operation of all elements of the electrical system, causing additional power losses, reducing the service life of electrical equipment and its economic performance, as well as reliability of operation of individual electrical equipment and power supply system as a whole. Reduction of voltage asymmetry can be ensured by rational construction of electrical network circuit and use of special correcting devices. The authors consider it reasonable to use relatively simple and reliable by design and inexpensive power transformers with a “star - double zigzag with a zero wire” (Y/2Zн) winding connection circuit with a neutral winding connection group. The paper deals with design and processes of converting electrical energy in a transformer. It has been proved that phase EMF of the secondary winding coincides in phase with the same EMF of the primary winding, i.e. the proposed circuit has a neutral windings’ connection group. Results of theoretical studies of transformer operation with an asymmetric and non-linear load are presented. Decrease in voltage asymmetry is due to the neutral sequence components compensation. Decrease of the higher harmonic voltage components level occurs due to the compensation of the higher harmonics multiplied three times. It is theoretically substantiated that transformer will not emit higher harmonic components of zero sequence voltages into the supply network. Experimental studies have confirmed the theoretical conclusions that a transformer with Y/2Zн winding connection circuit allows obtaining the highest level of voltage symmetry with an asymmetric load. In single-phase load mode, the values of voltage unbalance factor in reverse sequence do not exceed 1.7 %, in neutral sequence - 2.9 %. The transformer allows obtaining 1.2-1.5 times lower value of total harmonic components factor at non-linear load, which is the best result among circuits studied. This power transformer is resistant to load effects that distort voltage quality and is capable to provide a high level of symmetry and sinusoidal voltage as well as parallel operation with commercially available transformers. This makes it possible to use it in rural electrical networks to reduce power losses, increase service life and efficiency of electrical equipment, and increase reliability of the power supply system.

scholarly journals Pengaruh Pemasangan Kapasitor terhadap Cop (Coefficient Of Performance) Air Conditioning

2016 ◽  
Vol 2 (1) ◽  
Author(s):  
Syofyan Anwar Syahputra ◽  
Mustakim Mustakim
Keyword(s):  
Power Factor ◽  
Air Conditioning ◽  
Electric Energy ◽  
Coefficient Of Performance ◽  
Linear Load ◽  
Non Linear ◽  
Non Linear Load ◽  
Power Factor Improvement ◽  
The Impact

Non linear load harmonics cause, Air Conditioning is one of the main types of inverters that generate non linear load harmonics. Harmonics on the Air Conditioning so that the reduction must not interfere with the quality of power on the system and network. The ability of an Air Conditioning unit to cool a room can be known as Coefficient Of Performance (COP). This can be seen from the comparison between the heat energy required to cool the room with the electric energy used on the unit. In this case you will know the impact caused by the reduction of the harmonics of the COP. Reduction of harmonics used in this study using 16 F capacitor which also serves as a power factor improvement. The results obtained after using the capacitor found impairment harmonic currents (IHDi). After the measurement of the COP also increased from 2,740 becomes 3,176. This proves that the capacitor also function besides improving the power factor can reduce the harmonics an improve the COP.

scholarly journals Voltage harmonic distortion compensation with non-linear load power sharing in low-voltage islanded microgrid

2019 ◽  
Vol 158 ◽  
pp. 32-48 ◽  
Author(s):  
Hassan Moussa ◽  
Jean-Philippe Martin ◽  
Serge Pierfederici ◽  
Farid Meibody-Tabar ◽  
Nazih Moubayed
Keyword(s):  
Low Voltage ◽  
Harmonic Distortion ◽  
Power Sharing ◽  
Distortion Compensation ◽  
Load Power ◽  
Linear Load ◽  
Non Linear ◽  
Islanded Microgrid ◽  
Non Linear Load

Harmonic Compensation using STATCOM for SEIG Feeding Single-Phase Load Connected between Different Phases

2017 ◽  
Vol 6 (3) ◽  
pp. 489
Author(s):  
Satyanarayan Gorantla ◽  
Goli Ravi Kumar
Keyword(s):  
Power System ◽  
Power Quality ◽  
Reactive Power ◽  
Harmonic Distortion ◽  
Induction Generator ◽  
Generator System ◽  
Synchronous Reference Frame ◽  
Linear Load ◽  
Non Linear ◽  
Non Linear Load

The paper presents the analysis of harmonic distortion when non-linear load is connected in different phases of power system with STATCOM for singly excited induction generator system with wind turbine as prime mover. Now-a-days due to the drastically increased in use of non linear loads causes many power quality problems in power system network. Those problems are classified as reactive power problems, harmonics, voltage sags and swells. Out of these problems harmonic problems are major concern. Custom power devices proposed for mitigation of power quality in network. For compensation of harmonic, static compensator (STATCOM) is used. The paper presents the compensation of harmonic power quality issues using STATCOM for the system with singly-excited induction generator feeding non-linear load connected in different phases. STATCOM is controlled using synchronous reference frame theory to produce pulses to switches of STATCOM sensing the input parameters. Proposed concept was developed using MATLAB/SIMULINK software and results are presented for non-linear load connected in different phases of the power system. THD analysis was shown for source current and load current for different cases.

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.

Sign in / Sign up

Export Citation Format

Share Document