An Implementation of a Filter Design Passive LC in Reduce a Current Harmonisa
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The study investigates the issue of harmonic distortion caused by the use of household mixers, which negatively affects power quality. By implementing a passive LC filter, the total harmonic distortion (THDi) was reduced from 61.48% to 23.75%, thereby improving the power factor from 0.75 to 0.98. The results indicate that using such filters can help meet the IEC61000-3-2 Class D standards for electrical equipment.
![http://www.iaeme.com/IJCIET/index.asp 867 editor@iaeme.com
International Journal of Civil Engineering and Technology (IJCIET)
Volume 9, Issue 7, July 2018, pp. 867–873, Article ID: IJCIET_09_07_090
Available online at http://www.iaeme.com/ijciet/issues.asp?JType=IJCIET&VType=9&IType=7
ISSN Print: 0976-6308 and ISSN Online: 0976-6316
© IAEME Publication Scopus Indexed
AN IMPLEMENTATION OF A FILTER DESIGN
PASSIVE LC IN REDUCE A CURRENT
HARMONISA
Maharani Putri, Pristisal Wibowo, Solly Aryza, Andysah Putera Utama Siahaan,
Rusiadi
Lecturer of Universitas Pembangunan Panca Budi, Medan, Indonesia
ABSTRACT
The problem of electric power quality is a matter of changing the form of voltage,
current or frequency that can cause failure of equipment, either utility equipment or
consumer property. Components of household equipment there are many nonlinear
loads, one of which Mixer. Even a load nonlinear current waveform and voltage is not
sinusoidal. Due to the use of household appliances such as mixers, it will cause
harmonics problems that can damage the electrical system equipment. This study
analyzes the percentage value of harmonics in Mixer and reduces harmonics according
to standard. Measurements made before the use of LC passive filter yield total current
harmonic distortion value (THDi) is 61.48%, while after passive filter use LC the THDi
percentage becomes 23.75%. The order of harmonic current in the 3rd order mixer
(IHDi) is 0.4185 A not according to standard, after the use of LC passive filter to 0.088
A and it is in accordance with the desired standard, and with the use of passive filter
LC, the power factor value becomes better than 0.75 to 0.98.
Key words: Mixer, Harmonic, THDi, and THDv, Standard IEC61000-3-2 Class D.
Cite this Article: Maharani Putri, Pristisal Wibowo, Solly Aryza, Andysah Putera
Utama Siahaan, Rusiadi, An Implementation of A Filter Design Passive LC In Reduce
A Current Harmonisa, International Journal of Civil Engineering and Technology, 9(7),
2018, pp. 867–873.
http://www.iaeme.com/ijciet/issues.asp?JType=IJCIET&VType=9&IType=7
1. INTRODUCTION
Harmonic is a phenomenon generated from the operation of electrical loads that mostly result
from nonlinear loads, which will form a wave of high frequency. The frequency is a multiple
of its fundamental frequency of 50Hz so that the current waveform and the supposed voltage
are pure sinusoidal will be defective due to harmonic distortion that occurs. Harmonics was
usually defined as sine waves (currents and voltages) having integer frequency (integer)
frequencies of their fundamental frequencies [1].](https://image.slidesharecdn.com/maharaniputri-animplementationofafilterdesignpassivelcinreduceacurrentharmonisa-180725173615/85/An-Implementation-of-a-Filter-Design-Passive-LC-in-Reduce-a-Current-Harmonisa-1-320.jpg)
![Maharani Putri, Pristisal Wibowo, Solly Aryza, Andysah Putera Utama Siahaan, Rusiadi
http://www.iaeme.com/IJCIET/index.asp 868 editor@iaeme.com
Electronic equipment such as Mixer is a non-linear load connected to an electrical utility
causing an increase in harmonics in the electrical system that supplies it [2]. Total Harmonic
Distortion (THD) of an electrical load can cause poor system power quality, low power factor,
a distorted voltage waveform, increased system power loss, overheating of the transformer,
inefficient use of electrical energy, and may affect the performance of other equipment using
the power source [3].
The magnitude of the percentage of harmonics produced by Mixer not only gives an adverse
impact to the mixer itself but also provides a bad influence on the system. Harmonics can
damage the quality of rotation and also adversely affect the electric power equipment that is the
value of RMS currents and higher voltage, the peak value (current) and higher voltage and
frequency of the system down. While on the system, the influence of harmonics, among others:
loading and the working transformer will increase weight, technical losses on the more
extensive network, the use of electrical energy becomes inefficient, and the performance of
other equipment was also disrupted [4].
2. LITERATURE REVIEW
Factors affecting the quality of electrical power include [2], [5].
1. Electric consumers become increasingly aware of power quality issues such as voltage
fluctuations, interruptions, and transients. Also, many governments in a country have revised
their policies to further enhance the quality of power by established limits and standards.
1. The emphasis on overall power system efficiency has led to the use of high-efficiency devices,
adjustable-speed motor drives and parallel capacitors to correct power factor and reduce losses.
As a result, there is an increase in harmonic levels in power systems that threaten the operation,
reliability, and security of the system.
2. Modern equipment loads use microprocessor-based controllers and power electronics devices
that are more sensitive to changes in power quality.
3. Automation and efficiency depend on digital components requiring direct current supply. Since
the power generated and transmitted is AC power, the AC power supply must be converted to
DC first to be used by DC loads. Therefore, it will be much needed a converter that can further
increase the harmonic level and can cause the fundamental wave distortion becomes more
severe.
A mixer is used for facilitating household work, especially to mix cookie dough matrials,
bread, and so forth [6]. Design mixer reasonably modern. Has several components in it to
support the optimal performance of a Mixer. The Mixers are one of the most modern types of
household appliances used to lighten the workload of household chores. Mixer serves as a mixer
or mixer of foodstuffs to make bread dough, cake, or the like. A mixer is only used as a
household appliance, but it is not possible to use a mixer on a large scale as a home industry
[7].
Mixer working principle is to convert electrical energy into mechanical energy by flowing
electric current to switch speed selector switch and then rushed back to the driving force. The
driving force present in the mixer is included in the induction motor of the wound rotor (wound
rotor induction motor) [5].
To determineat at a value of Total Harmonic Distortion (THD) from the formulation of
fourier series analysis for voltage and current in the function of time [8]
= + ∑ + (1)
= + ∑ + (2)](https://image.slidesharecdn.com/maharaniputri-animplementationofafilterdesignpassivelcinreduceacurrentharmonisa-180725173615/85/An-Implementation-of-a-Filter-Design-Passive-LC-in-Reduce-a-Current-Harmonisa-2-320.jpg)
![An Implementation of A Filter Design Passive LC In Reduce A Current Harmonisa
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For the RMS voltage and current value of the sinusoidal wave we can calculate the wave
peak value divided by √2 and fourier for the voltage and current shown Equation (5 and 6) [9]:
= + ∑
√
(3)
= + ∑
!
√
(4)
The value of Total Harmonic Distortion (THD) for voltage and current is shown in
Equations (7 and 8) ie:
"#
$ %
=
∑
&
√'
'
(
)'
&*
√'
=
+∑ '(
)'
*
(5)
So the current RMS to THDI becomes:
= , -1 + "#$! / (6)
Table 1 Standard harmonic current for class D equipment
3. METHODOLOGY OF RESEARCH.
The method used in this study is to perform Measurement and retrieval of data performed
directly. Measurement and retrieval of data are done directly to the field by using a measuring
tool called Power Quality Analyzer. Data communication from Power Quality Analyzer to the
computer is done via USB. This data communication packet is displayed in list and graph form
directly, and the data can be stored on the computer.
The equipment used in measuring the mixer is the Power Quality Analyzer Fluke 43B,
laptop, and connecting cable. Fluke 43B Power Quality Analyzer gauge can be shown by Figure
1 as follows:
Figure 1 Power Quality Analyzer Fluke 43B
Harmonisa
to-n
Current harmonisa maximum
(mA/W)
Current harmonisa maximum
(A)
75 < P < 600W P > 600W
3 3,4 2,30
5 1,9 1,14
7 1,0 0,77
9 0,5 0,40
11 0,35 0,33
13 0,296 0,21
15≤n≤39 3,85/n 2,25/n](https://image.slidesharecdn.com/maharaniputri-animplementationofafilterdesignpassivelcinreduceacurrentharmonisa-180725173615/85/An-Implementation-of-a-Filter-Design-Passive-LC-in-Reduce-a-Current-Harmonisa-3-320.jpg)
![An Implementation of A Filter Design Passive LC In Reduce A Current Harmonisa
http://www.iaeme.com/IJCIET/index.asp 873 editor@iaeme.com
REFERENCES
[1] M. A. Magzoub, N. B. Saad, and R. B. Ibrahim, “Efficiency Improvement of Induction
Motor Variable Speed Drive Using a Hybrid Fuzzy-fuzzy Controller,” in Energy Procedia,
2015, vol. 75, pp. 1529–1535.
[2] S. Aryza, M. Irwanto, Z. Lubis, A. P. U. Siahaan, R. Rahim, and M. Furqan, “A Novelty
Design Of Minimization Of Electrical Losses In A Vector Controlled Induction Machine
Drive,” IOP Conf. Ser. Mater. Sci. Eng., vol. 300, no. 1, p. 12067, 2018.
[3] P. Wibowo, “Analisis Filter Pasif Single Tuned Untuk Mengurangi Arus Harmonisa Pada
Mixer.” .
[4] S. Aryza, A. N. Abdalla, Z. Khalidin, and Z. Lubis, “Adaptive speed estimation of induction
motor based on neural network inverse control,” Procedia Eng., vol. 15, pp. 4188–4193,
2011.
[5] S. Aryza, M. Irwanto, Z. Lubis, A. Putera, and U. Siahaan, “A Novelty Stability Of
Electrical System Single Machine Based Runge Kutta Orde 4 Method,” IOSR J. Electr.
Electron. Eng. Ver. II, vol. 12, no. 4, pp. 2278–1676, 2017.
[6] P. Wibowo, S. A. Lubis, . Hermansyah, . Hamdani, and Z. Tharo, “Smart Home Security
System Design Sensor Based on Pir and Microcontroller,” Int. J. Glob. Sustain., vol. 1, no.
1, p. 67, 2017.
[7] S. A. Lubis et al., “APPLICATION HYBRID ECO CAMPUS VEHICLE BASED ON
SOLAR POWER,” vol. 3, no. 2, 2015.
[8] S. Speed et al., “Shaft speed, load torque and rotor flux estimation of induction motor drive
using an extended Luenberger observer,” Electr. Mach. Drives, 1993. Sixth Int. Conf.
(Conf. Publ. No. 376), no. 3, pp. 179–184, 1993.
[9] Ravirajsinh S Vaghela and Dr. Atul Gonsai, Filter Design For Improvement of Interference
on Adjacent Frequency, International Journal of Electronics and Communication
Engineering and Technology, 8(3), 2017, pp. 10–16.
[10] B. Ravi Teja, B. Rama Krishna, V.Gowtham and M. Chakravarthi, Control Algorithm of
Shunt Active Power Filter for Harmonic Mitigation Using Indirect Current Control
Technique. International Journal of Electrical Engineering & Technology, 9(2), 2018, pp.
37–48.
[11] Chandram Karri, Soujanya Kuchana, Detection and Quantification of Harmonic Emissions
in Doubly Fed Induction Generator. International Journal of Electrical Engineering &
Technology, 8(5), 2017, pp. 20–31.
[12] B. Ramya, T. Srinivasarao, T. Mahesh babu, P.L.Pravallika, G. Narsi Reddy and Prabhakara
Sharma Pidatala. A novel approach of harmonic elimination in a square-wave inverter for
low and medium-voltage applications. International Journal of Electrical Engineering &
Technology, 8(2), 2017, pp. 36–48
[13] S. Aryza, M. Irwanto, Z. Lubis, and A. P. U. Siahaan, “A Novelty Stability Of Electrical
System Single Machine Based Runge Kutta Orde 4 Method.”](https://image.slidesharecdn.com/maharaniputri-animplementationofafilterdesignpassivelcinreduceacurrentharmonisa-180725173615/85/An-Implementation-of-a-Filter-Design-Passive-LC-in-Reduce-a-Current-Harmonisa-7-320.jpg)
An Implementation of a Filter Design Passive LC in Reduce a Current Harmonisa
- 1. http://www.iaeme.com/IJCIET/index.asp 867 editor@iaeme.com International Journal of Civil Engineering and Technology (IJCIET) Volume 9, Issue 7, July 2018, pp. 867–873, Article ID: IJCIET_09_07_090 Available online at http://www.iaeme.com/ijciet/issues.asp?JType=IJCIET&VType=9&IType=7 ISSN Print: 0976-6308 and ISSN Online: 0976-6316 © IAEME Publication Scopus Indexed AN IMPLEMENTATION OF A FILTER DESIGN PASSIVE LC IN REDUCE A CURRENT HARMONISA Maharani Putri, Pristisal Wibowo, Solly Aryza, Andysah Putera Utama Siahaan, Rusiadi Lecturer of Universitas Pembangunan Panca Budi, Medan, Indonesia ABSTRACT The problem of electric power quality is a matter of changing the form of voltage, current or frequency that can cause failure of equipment, either utility equipment or consumer property. Components of household equipment there are many nonlinear loads, one of which Mixer. Even a load nonlinear current waveform and voltage is not sinusoidal. Due to the use of household appliances such as mixers, it will cause harmonics problems that can damage the electrical system equipment. This study analyzes the percentage value of harmonics in Mixer and reduces harmonics according to standard. Measurements made before the use of LC passive filter yield total current harmonic distortion value (THDi) is 61.48%, while after passive filter use LC the THDi percentage becomes 23.75%. The order of harmonic current in the 3rd order mixer (IHDi) is 0.4185 A not according to standard, after the use of LC passive filter to 0.088 A and it is in accordance with the desired standard, and with the use of passive filter LC, the power factor value becomes better than 0.75 to 0.98. Key words: Mixer, Harmonic, THDi, and THDv, Standard IEC61000-3-2 Class D. Cite this Article: Maharani Putri, Pristisal Wibowo, Solly Aryza, Andysah Putera Utama Siahaan, Rusiadi, An Implementation of A Filter Design Passive LC In Reduce A Current Harmonisa, International Journal of Civil Engineering and Technology, 9(7), 2018, pp. 867–873. http://www.iaeme.com/ijciet/issues.asp?JType=IJCIET&VType=9&IType=7 1. INTRODUCTION Harmonic is a phenomenon generated from the operation of electrical loads that mostly result from nonlinear loads, which will form a wave of high frequency. The frequency is a multiple of its fundamental frequency of 50Hz so that the current waveform and the supposed voltage are pure sinusoidal will be defective due to harmonic distortion that occurs. Harmonics was usually defined as sine waves (currents and voltages) having integer frequency (integer) frequencies of their fundamental frequencies [1].
- 2. Maharani Putri, Pristisal Wibowo, Solly Aryza, Andysah Putera Utama Siahaan, Rusiadi http://www.iaeme.com/IJCIET/index.asp 868 editor@iaeme.com Electronic equipment such as Mixer is a non-linear load connected to an electrical utility causing an increase in harmonics in the electrical system that supplies it [2]. Total Harmonic Distortion (THD) of an electrical load can cause poor system power quality, low power factor, a distorted voltage waveform, increased system power loss, overheating of the transformer, inefficient use of electrical energy, and may affect the performance of other equipment using the power source [3]. The magnitude of the percentage of harmonics produced by Mixer not only gives an adverse impact to the mixer itself but also provides a bad influence on the system. Harmonics can damage the quality of rotation and also adversely affect the electric power equipment that is the value of RMS currents and higher voltage, the peak value (current) and higher voltage and frequency of the system down. While on the system, the influence of harmonics, among others: loading and the working transformer will increase weight, technical losses on the more extensive network, the use of electrical energy becomes inefficient, and the performance of other equipment was also disrupted [4]. 2. LITERATURE REVIEW Factors affecting the quality of electrical power include [2], [5]. 1. Electric consumers become increasingly aware of power quality issues such as voltage fluctuations, interruptions, and transients. Also, many governments in a country have revised their policies to further enhance the quality of power by established limits and standards. 1. The emphasis on overall power system efficiency has led to the use of high-efficiency devices, adjustable-speed motor drives and parallel capacitors to correct power factor and reduce losses. As a result, there is an increase in harmonic levels in power systems that threaten the operation, reliability, and security of the system. 2. Modern equipment loads use microprocessor-based controllers and power electronics devices that are more sensitive to changes in power quality. 3. Automation and efficiency depend on digital components requiring direct current supply. Since the power generated and transmitted is AC power, the AC power supply must be converted to DC first to be used by DC loads. Therefore, it will be much needed a converter that can further increase the harmonic level and can cause the fundamental wave distortion becomes more severe. A mixer is used for facilitating household work, especially to mix cookie dough matrials, bread, and so forth [6]. Design mixer reasonably modern. Has several components in it to support the optimal performance of a Mixer. The Mixers are one of the most modern types of household appliances used to lighten the workload of household chores. Mixer serves as a mixer or mixer of foodstuffs to make bread dough, cake, or the like. A mixer is only used as a household appliance, but it is not possible to use a mixer on a large scale as a home industry [7]. Mixer working principle is to convert electrical energy into mechanical energy by flowing electric current to switch speed selector switch and then rushed back to the driving force. The driving force present in the mixer is included in the induction motor of the wound rotor (wound rotor induction motor) [5]. To determineat at a value of Total Harmonic Distortion (THD) from the formulation of fourier series analysis for voltage and current in the function of time [8] = + ∑ + (1) = + ∑ + (2)
- 3. An Implementation of A Filter Design Passive LC In Reduce A Current Harmonisa http://www.iaeme.com/IJCIET/index.asp 869 editor@iaeme.com For the RMS voltage and current value of the sinusoidal wave we can calculate the wave peak value divided by √2 and fourier for the voltage and current shown Equation (5 and 6) [9]: = + ∑ √ (3) = + ∑ ! √ (4) The value of Total Harmonic Distortion (THD) for voltage and current is shown in Equations (7 and 8) ie: "# $ % = ∑ & √' ' ( )' &* √' = +∑ '( )' * (5) So the current RMS to THDI becomes: = , -1 + "#$! / (6) Table 1 Standard harmonic current for class D equipment 3. METHODOLOGY OF RESEARCH. The method used in this study is to perform Measurement and retrieval of data performed directly. Measurement and retrieval of data are done directly to the field by using a measuring tool called Power Quality Analyzer. Data communication from Power Quality Analyzer to the computer is done via USB. This data communication packet is displayed in list and graph form directly, and the data can be stored on the computer. The equipment used in measuring the mixer is the Power Quality Analyzer Fluke 43B, laptop, and connecting cable. Fluke 43B Power Quality Analyzer gauge can be shown by Figure 1 as follows: Figure 1 Power Quality Analyzer Fluke 43B Harmonisa to-n Current harmonisa maximum (mA/W) Current harmonisa maximum (A) 75 < P < 600W P > 600W 3 3,4 2,30 5 1,9 1,14 7 1,0 0,77 9 0,5 0,40 11 0,35 0,33 13 0,296 0,21 15≤n≤39 3,85/n 2,25/n
- 4. Maharani Putri, Pristisal Wibowo, Solly Aryza, Andysah Putera Utama Siahaan, Rusiadi http://www.iaeme.com/IJCIET/index.asp 870 editor@iaeme.com Then the result of the measurement is analyzed and adjusted with the IEC61000-3-2 Standard and examined its effect on power quality. The data obtained can be seen in Table 2. Tables 2 Mixer Measurement Data Parameter Satuan Mixer U (Phase Voltage) Volt 226.3 I (Phase Current) Ampere 0.75 S (Apparent Power) VA 126.5 P (Active Power) W 110 Q (Reactive Power) VAR 58.5 PF (Power Factor) - 0.75 Cos Phi - 0.86 THDv % 1.7 THDi % 59.4 Freq Hz 50.01 In Table 3 we can see the Mixer current harmonic measurement data from the 3rd order to the 15th order. Classification of harmonic current based on IEC6100-3-2 Class D standard. Where the value of current at 3rd order is not by IEC61000-3-2 Class D standard is 0.4185 A. Tables 3 Classification of measurement harmonics currents Based on IEC61000-3-2 Class D standard Harmonisa with-n Harmonic current constraint Standard IEC61000-3-2 (Mixer 110 W) Harmonic current Measurement results (A) Information (mA/W) (A) 3 3.4 0.374 0.4185 Not standart 5 1.9 0.209 0.159 Standar 7 1 0.11 0.0465 Standar 9 0.5 0.055 0.0255 Standar 11 0.35 0.0385 0.01425 Standar 13 0.296 0.03256 0.0009 Standar 15≤≤≤≤n≤≤≤≤39 3.85 0.4235 0.00075 Standar 3.2. FLOWCHART OF RESESRCH. The research flow diagram starts from data collection and harmonic measurement and then the measurement results are adjusted to IEC1000-3-2 Class D standard. Then reduce with the addition of passive LC filter simulated using Matlab / Simulink as shown in Figure 2.
- 5. An Implementation of A Filter Design Passive LC In Reduce A Current Harmonisa http://www.iaeme.com/IJCIET/index.asp 871 editor@iaeme.com Figures 2 Flow Chart of Research 4. ANALYSIS AND RESULTS The simulation used in this research is using Matlab / Simulink program by implementing LC passive filter which is connected in parallel to the circuit. Obtained simulation results after use of LC passive filter, where total distortion of THDi current harmonic is 23,75% from before use equal to 61,48%. Flow waveform and harmonic spectrum prior to the use of LC passive filter can be seen in Figures 3 and 4.
- 6. Maharani Putri, Pristisal Wibowo, Solly Aryza, Andysah Putera Utama Siahaan, Rusiadi http://www.iaeme.com/IJCIET/index.asp 872 editor@iaeme.com Figures 3 Flow Wave Form Before Passive LC Filter Usage Figures 4 Spectrum Current Before Using Passive LC Filter Flow waveform and harmonic spectrum after passive filter use LC can be seen in Figures 5 and 6. Figures 5 Flow Wave Form After Using Passive LC Filter Figures 6 Current Spectrum After Passive LC Filter Usage 5. CONCLUSION This research concludes that the measured Mixer produces a total value of 60.48% of the harmonic distortion voltage (THDi). After passive filter use LC THDi to 23,56%. For harmonious order (IHDi) at the 3rd order before the use of LC passive filter of 0.4185, A while after use to 0.088 A so that the results obtained according to IEC61000-3-2 Class D standards are by standard and power factor produced to 0.98.
- 7. An Implementation of A Filter Design Passive LC In Reduce A Current Harmonisa http://www.iaeme.com/IJCIET/index.asp 873 editor@iaeme.com REFERENCES [1] M. A. Magzoub, N. B. Saad, and R. B. Ibrahim, “Efficiency Improvement of Induction Motor Variable Speed Drive Using a Hybrid Fuzzy-fuzzy Controller,” in Energy Procedia, 2015, vol. 75, pp. 1529–1535. [2] S. Aryza, M. Irwanto, Z. Lubis, A. P. U. Siahaan, R. Rahim, and M. Furqan, “A Novelty Design Of Minimization Of Electrical Losses In A Vector Controlled Induction Machine Drive,” IOP Conf. Ser. Mater. Sci. Eng., vol. 300, no. 1, p. 12067, 2018. [3] P. Wibowo, “Analisis Filter Pasif Single Tuned Untuk Mengurangi Arus Harmonisa Pada Mixer.” . [4] S. Aryza, A. N. Abdalla, Z. Khalidin, and Z. Lubis, “Adaptive speed estimation of induction motor based on neural network inverse control,” Procedia Eng., vol. 15, pp. 4188–4193, 2011. [5] S. Aryza, M. Irwanto, Z. Lubis, A. Putera, and U. Siahaan, “A Novelty Stability Of Electrical System Single Machine Based Runge Kutta Orde 4 Method,” IOSR J. Electr. Electron. Eng. Ver. II, vol. 12, no. 4, pp. 2278–1676, 2017. [6] P. Wibowo, S. A. Lubis, . Hermansyah, . Hamdani, and Z. Tharo, “Smart Home Security System Design Sensor Based on Pir and Microcontroller,” Int. J. Glob. Sustain., vol. 1, no. 1, p. 67, 2017. [7] S. A. Lubis et al., “APPLICATION HYBRID ECO CAMPUS VEHICLE BASED ON SOLAR POWER,” vol. 3, no. 2, 2015. [8] S. Speed et al., “Shaft speed, load torque and rotor flux estimation of induction motor drive using an extended Luenberger observer,” Electr. Mach. Drives, 1993. Sixth Int. Conf. (Conf. Publ. No. 376), no. 3, pp. 179–184, 1993. [9] Ravirajsinh S Vaghela and Dr. Atul Gonsai, Filter Design For Improvement of Interference on Adjacent Frequency, International Journal of Electronics and Communication Engineering and Technology, 8(3), 2017, pp. 10–16. [10] B. Ravi Teja, B. Rama Krishna, V.Gowtham and M. Chakravarthi, Control Algorithm of Shunt Active Power Filter for Harmonic Mitigation Using Indirect Current Control Technique. International Journal of Electrical Engineering & Technology, 9(2), 2018, pp. 37–48. [11] Chandram Karri, Soujanya Kuchana, Detection and Quantification of Harmonic Emissions in Doubly Fed Induction Generator. International Journal of Electrical Engineering & Technology, 8(5), 2017, pp. 20–31. [12] B. Ramya, T. Srinivasarao, T. Mahesh babu, P.L.Pravallika, G. Narsi Reddy and Prabhakara Sharma Pidatala. A novel approach of harmonic elimination in a square-wave inverter for low and medium-voltage applications. International Journal of Electrical Engineering & Technology, 8(2), 2017, pp. 36–48 [13] S. Aryza, M. Irwanto, Z. Lubis, and A. P. U. Siahaan, “A Novelty Stability Of Electrical System Single Machine Based Runge Kutta Orde 4 Method.”