scholarly journals Reducing of total harmonic distortion using passive filter simulation to suppress harmonic currents with the case: General Hospital, Universitas Kristen Indonesia Jakarta

2021 ◽  
Vol 878 (1) ◽  
pp. 012061
Author(s):  
D Elfando ◽  
E M Silalahi ◽  
S Stepanus ◽  
B Widodo ◽  
R Purba
Keyword(s):  
Filter Design ◽  
Harmonic Distortion ◽  
Electrical Energy ◽  
Electrical Equipment ◽  
Harmonic Currents ◽  
Technological Advances ◽  
Harmonic Filter ◽  
Measurement Results ◽  
Non Linear ◽  
Standard Value

Abstract With the increasing need for and use of electrical energy amid increasingly rapid technological advances, especially in the use of electronic equipment in hospitals, it is necessary to pay attention to the problem of harmonics due to the use of non-linear electrical equipment. Therefore, it is necessary to measure the current and voltage THD for each non-linear equipment user. If the current and voltage THD values do not meet the standards, then a filter design is carried out so that the THD values meet the standards. Based on the results of THD measurements on the Main Distribution Panel (MDP) of RSU UKI, it was found that the THD of the voltage varied between 0.7877% - 2.4363% and the current THD varied between 5.3073% - 9.2363%. The measured THD value refers to the IEEE 519-2014 standard. If the THD value of the measurement results exceeds the IEEE 519-2014 standard, a harmonic filter is needed. With the simulated single tuned filter design, the current THD decreases within the standard value. The THD value of the current after installing the filter at the three MDP’s of the RSU UKI, namely MDP A of 1.72%, MDP B of 0.64% and MDP C of 1.30%.

scholarly journals Reducing of total harmonic distortion by simulating passive filters to suppress harmonic currents with the case: Faculty of Engineering Building, Universitas Kristen Indonesia Jakarta

2021 ◽  
Vol 878 (1) ◽  
pp. 012060
Author(s):  
A D T Prasetyo ◽  
E M Silalahi ◽  
S Stepanus ◽  
B Widodo ◽  
R Purba
Keyword(s):  
Filter Design ◽  
Short Circuit ◽  
Harmonic Distortion ◽  
Maximum Load ◽  
Total Harmonic Distortion ◽  
Laboratory Equipment ◽  
Harmonic Currents ◽  
Measurement Results ◽  
Passive Filters ◽  
Sinusoidal Current

Abstract Today’s electrical appliances use power electronics to save electricity. However, this equipment generates non-sinusoidal current, causing wave defect, expressed as total harmonic distortion (THD). As the %THD increases, the greater risk of equipment damage. For this reason, the research was carried out in the Faculty of Engineering Building, Universitas Kristen Indonesia Jakarta (FT UKI Jakarta) where there are many load combinations such as computers, various types of lights, laboratory equipment such as transformers, electric motors and so on. The research was conducted using quantitative method. Data collection is carried out directly in the main panel. Based on the measurement results, the calculation of the maximum load current (IL) and short circuit (ISC) is carried out. Through these values, it can be seen that whether the odd dominant harmonic values and orders meets the IEEE 519-2014 standards or not. Calculations and analysis of the measurement results have shown that the %THDI in the FT UKI building has not meet the standard. Therefore, it is necessary to simulate the filter design to reduce the %THDI, so that the results can meets the IEEE 519-2014 standard, which is below 5%.

Ant Colony Algorithm (ACO) Applied for Tuning PI of Shunt Active Power Filter (SAPF)

2021 ◽  
Vol 17 (2) ◽  
pp. 204-211
Author(s):  
Raheel Jawad ◽  
Rawaa Jawad ◽  
Zahraa Salman
Keyword(s):  
Ant Colony Algorithm ◽  
Electrical Power ◽  
Harmonic Distortion ◽  
Electrical Energy ◽  
Active Power ◽  
Ant Colony ◽  
Electrical Strength ◽  
Shunt Active Power Filter ◽  
Active Power Filters ◽  
Non Linear

In the present-day decade, the world has regarded an expansion in the use of non-linear loads. These a lot draw harmonic non-sinusoidal currents and voltages in the connection factor with the utility and distribute them with the useful resource of the overall performance of it. The propagation of these currents and voltages into the grids have an effect on the electricity constructions in addition to the one of various client equipment. As a result, the electrical strength notable has come to be critical trouble for each client and distributor of electrical power. Active electrical electricity filters have been proposed as environment splendid gear for electrical power pinnacle notch enchantment and reactive electrical strength compensation. Active Power Filters (APFs) have Flipped out to be a possible wish in mitigating the harmonics and reactive electrical electricity compensation in single-phase and three-phase AC electrical energy networks with Non-Linear Loads (NLLs). Conventionally, this paper applied Ant Colony Algorithm(ACO) for tuning PI and reduce Total Harmonic Distortion (THD). The result show reduces THD at 2.33%.

scholarly journals Analisa Kualitas Daya Listrik Pada Gardu Distribusi Universitas Khairun

2021 ◽  
Vol 4 (1) ◽  
pp. 28
Author(s):  
Ramly Rasyid ◽  
Miftah Muhammad
Keyword(s):  
Power Factor ◽  
Measurement Method ◽  
Harmonic Distortion ◽  
Electrical Energy ◽  
Electrical Equipment ◽  
Electric Power System ◽  
Telecommunication System ◽  
Nonlinear Loads ◽  
System Power ◽  
Very High

The large number of applications of nonlinear loads in the electric power system has made the system current very distorted with a very high percentage of current harmonic content, THD (total harmonic distortion) can damage the power factor compensation capacitor, making the system power factor worse, causing interference. to the telecommunication system, increase system losses, cause various kinds of damage to sensitive electrical equipment, all of which cause the use of electrical energy to be ineffective which results in poor power quality. In this study, the collection of data obtained was based on methods such as the following, namely the measurement method. This measurement method measures the harmonic voltages and currents caused by non-linear loads.

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 Kajian Harmonisa Pada Pemakaian Tenaga Listrik Gedung STT-PLN Jakarta

Kilat ◽  
2019 ◽  
Vol 8 (2) ◽  
Author(s):  
Tony Koerniawan ◽  
Aas Wasri Hasanah
Keyword(s):  
Power Quality ◽  
Harmonic Distortion ◽  
Electricity Consumption ◽  
Electrical System ◽  
Utility System ◽  
Harmonic Filter ◽  
Non Linear ◽  
Sinusoidal Waveform ◽  
The Impact

Harmonic is produced by non-linear loads in electrical system. The using of non-linear loads in utility system increaces harmonics in the result sinusoidal waveform of current and voltage can not occur. A harmonic filter is expected to decrease harmonic in STT-PLN electricity consumption  which have current and voltage of harmonic distortion on the threeth. Therefore we need a filter that can reduce the impact of harmonics that occur so as to provide better power quality.

scholarly journals Studying the Effect of Non-Linear Loads Harmonics on Electric Generator Power Rating Selection

2017 ◽  
Vol 13 (18) ◽  
pp. 548 ◽  
Author(s):  
Ahmed EL Sebaay ◽  
Mahmoud Ramadan ◽  
Maged A. Abu Adma
Keyword(s):  
Power System ◽  
Power Supply ◽  
Harmonic Distortion ◽  
Synchronous Generator ◽  
Electric Power System ◽  
Variable Frequency Drive ◽  
Current Harmonics ◽  
Electric Generator ◽  
Harmonic Currents ◽  
Non Linear

Non-linear loads connected to an electric power system produce Harmonic currents, harmonics are introduced into the system in the form of currents whose frequencies are the integral multiples of the fundamental power system frequency (50/60 Hz). The harmonic currents interact with the supply system impedance causing distortions in supply output voltage and current, which has a very bad effect on all other loads connected to the system and the power supply itself, such as overheating, increasing powers losses in the system, and malfunction of protection and control devices connected to the system. This paper presents a study to analyze the effect of voltage and current harmonics resulting from non-linear loads such as variable frequency drive, uninterruptable power supply, and battery chargers on operation and power rating of synchronous generator. The study introduces an optimized method for selecting the suitable generator power rating to withstand harmful harmonics effects for a safe operation of the generator, saving its lifetime, and to improve the power quality of the power system. The method depends on analyzing the effect of increasing the supply generator power rating on the THVD produced from non-linear loads harmonics connected to the system. By calculating the THVD for each case of a generator power rating, a mathematical relationship between generator power rating and TVHD can be found. So, the relationship between generator power rating and total harmonic distortion in the power system will be discussed clearly.

scholarly journals Distribution system power quality compensation using a HSeAPF based on SRF and SMC features

2021 ◽  
Author(s):  
Akram Qashou ◽  
Sufian Yousef ◽  
Abdallah A. Smadi ◽  
Amani A. AlOmari
Keyword(s):  
Power Distribution ◽  
Distribution System ◽  
Reactive Power ◽  
Sliding Mode ◽  
Distribution Network ◽  
Harmonic Distortion ◽  
Phase Locked Loop ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Non Linear

AbstractThe purpose of this paper is to describe the design of a Hybrid Series Active Power Filter (HSeAPF) system to improve the quality of power on three-phase power distribution grids. The system controls are comprise of Pulse Width Modulation (PWM) based on the Synchronous Reference Frame (SRF) theory, and supported by Phase Locked Loop (PLL) for generating the switching pulses to control a Voltage Source Converter (VSC). The DC link voltage is controlled by Non-Linear Sliding Mode Control (SMC) for faster response and to ensure that it is maintained at a constant value. When this voltage is compared with Proportional Integral (PI), then the improvements made can be shown. The function of HSeAPF control is to eliminate voltage fluctuations, voltage swell/sag, and prevent voltage/current harmonics are produced by both non-linear loads and small inverters connected to the distribution network. A digital Phase Locked Loop that generates frequencies and an oscillating phase-locked output signal controls the voltage. The results from the simulation indicate that the HSeAPF can effectively suppress the dynamic and harmonic reactive power compensation system. Also, the distribution network has a low Total Harmonic Distortion (< 5%), demonstrating that the designed system is efficient, which is an essential requirement when it comes to the IEEE-519 and IEC 61,000–3-6 standards.

scholarly journals Internal model controller based PID with fractional filter design for a nonlinear process

2020 ◽  
Vol 10 (1) ◽  
pp. 243
Author(s):  
Hemavathy P.R. ◽  
Mohamed Shuaib Y ◽  
S.K. Lakshmanaprabu
Keyword(s):  
Internal Model ◽  
Process Model ◽  
Filter Design ◽  
Linear Process ◽  
Piecewise Linearization ◽  
Time Model ◽  
First Order ◽  
Non Linear ◽  
Internal Model Controller ◽  
Fractional Filter

In this paper, an Internal model Controller (IMC) based PID with fractional filter for a first order plus time delay process is proposed. The structure of the controller has two parts, one is integer PID controller part cascaded with fractional filter. The proposed controller has two tuning factors λ, filter time constant and a, fractional order of the filter. In this work, the two factors are decided in order to obtain low Integral Time Absolute Error (ITAE). The effectiveness of the proposed controller is studied by considering a non linear (hopper tank) process. The experimental set up is fabricated in the laboratory and then data driven model is developed from the experimental data. The non linear process model is linearised using piecewise linearization and two linear regions are obtained. At each operating point, linear first order plus dead time model is obtained and the controller is designed for the same. To show the practical applicability, the proposed controller is implemented for the proposed experimental laboratory prototype.

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