scholarly journals Passive Filter Design for Improving Quality of Solar Power

2018 ◽  
Vol 1 (1) ◽  
pp. 11-16
Author(s):  
Nurhalim Dani Ali ◽  
Noveri Lysbetti M ◽  
Firdaus Firdaus ◽  
Rahyul Amri ◽  
Edy Ervianto
Keyword(s):  
Power System ◽  
Harmonic Analysis ◽  
Solar Power ◽  
Filter Design ◽  
Electric Energy ◽  
Harmonic Distortion ◽  
Power Electronic ◽  
Energy Devices ◽  
Influence Spread

With the progress of industry, power electronic equipment is widely used in power system, it has produced serious harmonic distortion. It goes without saying that harmonic analysis is a very important subject in power system. The influence of harmonics dominant because it is permanent. This harmonic influence spread to energy systems, energy devices, and influential to the energy source. For that, it is necessary a tool that is able to overcome these problems so that the electric energy services are not compromised and the reliability was not reduced. This study how to harmonic analysis, total harmonic distortion, and identifying the inverter at a solar power plant 320WP in accordance with the IEEE 519-2014.

scholarly journals Effects of Solar Irradiance on Load Sharing of Integrated Photovoltaic System with IEEE Standard Bus Network

2019 ◽  
Vol 9 (1) ◽  
pp. 424-429
Keyword(s):  
Power System ◽  
Harmonic Distortion ◽  
Photovoltaic Cell ◽  
Photovoltaic System ◽  
Photovoltaic Module ◽  
Controlled Environment ◽  
Photovoltaic Panel ◽  
Ieee Standard ◽  
Integrated Power System

This paper attempts to highlight the effect of change in load and irradiance on Photovoltaic integrated Power system network. The Power system network considered here is IEEE 14 bus system. The simulation is done on MATLAB platform and variation of Voltage, Power and Total Harmonic Distortion (THD) has been studied. The results indicates that how power quality of the power system is affected by the irradiance on Photovoltaic cell. The study is performed considering the other environmental factors such as wind velocity, ambient temperature and humidity have a negligible effect on the photovoltaic module. In a steady-state controlled environment, the simulation results show that the output voltage, current and its power decrease with time as the irradiance on the photovoltaic panel decreases.

scholarly journals Cost Effective Power Quality Improvement Technique by Utilization of Solar Power for Non-Linear Loads

2019 ◽  
Vol 8 (2) ◽  
pp. 1016-1022
Keyword(s):  
Low Power ◽  
Power Quality ◽  
Urban Areas ◽  
Power Converters ◽  
Solar Power ◽  
Low Cost ◽  
Harmonic Distortion ◽  
Power Devices ◽  
Non Linear

Nowadays usage of digital gadgets and other low power devices has increased exponentially, which has power converters to convert from utility AC voltage to required level of DC voltage. These power converters (Adopters), which are considered as Non-linear loads, in turn induces harmonics on the supply side. Due to these induced harmonics, power quality of the utility supply will be degraded affecting the performance of other linear loads connected to the same supply. This paper discusses the effects of non-linear loads and corrective actions available in the literature. An effort has been made to analyze the performance of some domestic non-linear loads using MATLAB/SIMULINK software and verify the same by experimental setup. The Total Harmonic Distortion is analysed using FFT window and simulation and experimental results were compared. Then, a solar powered DC supply is proposed which can power all digital gadgets and other low power devices. As DC supply is generated from the solar power, the connection of non-linear loads to utility supply is reduced, thereby improving the power quality of the distribution side. Adoption of the proposed DC supply for low power digital gadgets, both in rural and urban areas will definitely make the domestic power consumers to be independent of depleting conventional grid power supply at low cost.

scholarly journals A Review of Total Harmonic Distortion Factors for the Measurement of Harmonic and Interharmonic Pollution in Modern Power Systems

Energies ◽  
2021 ◽  
Vol 14 (20) ◽  
pp. 6467
Author(s):  
Angel Arranz-Gimon ◽  
Angel Zorita-Lamadrid ◽  
Daniel Morinigo-Sotelo ◽  
Oscar Duque-Perez
Keyword(s):  
Power Systems ◽  
Harmonic Distortion ◽  
Total Harmonic Distortion ◽  
Electronic Systems ◽  
International Electrotechnical Commission ◽  
Power Electronic ◽  
Electrical System ◽  
Electrical Systems ◽  
Wide Range

Harmonic distortion is one of the disturbances that most affects the quality of the electrical system. The widespread use of power electronic systems, especially power converters, has increased harmonic and interharmonic emission in a wide range of frequencies. Therefore, there are new needs in the measurement of harmonic distortion in modern electrical systems, such as measurement in the supra-harmonic range (>2 kHz) and the measurement of interharmonics. The International Electrotechnical Commission (IEC) standards define new total harmonic distortion (THD) rates based on the concept of frequency groupings. However, the rates defined in the IEC standards have shortcomings when measuring signals such as those present in the outputs of power systems with abundant interharmonic content and presence of components in the supra-harmonic range. Therefore, in this work, a comparison is made between the different THD factors currently defined, both in the literature and in the standards, to show which of them are the most suitable for assessing harmonic and interharmonic contamination in power system signals such as those present at the output of inverters.

Harmonic Analysis of Multilevel H-Bridge Inverter with Reduced Switches for Solar Power Applications

2020 ◽  
Vol 17 (11) ◽  
pp. 4925-4929
Author(s):  
S. Krishnan ◽  
N. Ravikumar ◽  
P. Thirumal ◽  
R. Balamurali
Keyword(s):  
Fourier Transform ◽  
Fast Fourier Transform ◽  
Life Span ◽  
Harmonic Analysis ◽  
Traditional Method ◽  
Solar Power ◽  
Electronic Device ◽  
Harmonic Distortion ◽  
Multilevel Converter ◽  
Triggering Circuit

A multilevel H-bridge dc–ac converter is an electronic device, the multilevel converter enhanced stepped output with less switches. This paper deals with H-Bridge multilevel converter it requires only few switches when compared to traditional method. So in proposed method using only few switches, and it requires less gate triggering circuit. Less switches will operates for certain period of time. The proposed circuit is simulated using MATLAB software in that fast Fourier transform test to find the total harmonic distortion. With the proposed method multilevel converter can be used in solar power applications to convert dc supply into ac supply, it produces less harmonics it will enhance life span of the motor and efficiency of the motor will raise because in proposed multilevel converter there is a less switches are used.

scholarly journals Power Quality Improvement of Isolated Power System Network using UPQC

2020 ◽  
Vol 8 (5) ◽  
pp. 1962-1969
Keyword(s):  
Quality Improvement ◽  
Power System ◽  
Power Quality ◽  
Reactive Power ◽  
Harmonic Distortion ◽  
Unit Vector ◽  
Electrical Network ◽  
Alphabetical Order ◽  
Power Quality Improvement

The Unified Power Quality Controller (UPQC) is the Custom Power device designed for improving the power quality of the electrical network. In this paper, we proposed UPQC design for an isolated power system network to attend both voltage and current distortion by using Unit Vector template algorithm and Instantaneous Reactive Power theory. Also UPQC is designed for the hybrid generation with Hysteresis control algorithm. The power quality improvement of the power system network is the main aim . The performance analysis is done by comparing its Total Harmonic Distortion (THD). Based on its THD the quality of the power at the “Point of common coupling (PCC)”with and without compensator is quantified in this paper. Keywords : About four key words or phrases in alphabetical order, separated by commas.

scholarly journals An Experimental Analysis of Harmonic Distortion Indices In Home Based Electrical Appliances and Improvement Using Passive Filter

2021 ◽  
Vol 19 (1) ◽  
pp. 130-138
Author(s):  
Muhammad Shahzad Bajwa ◽  
Muhammad Usman Keerio ◽  
Mohsin Ali Koondhar ◽  
Muhammad Ismail Jamali ◽  
Irfan Ali Channa
Keyword(s):  
Power Quality ◽  
Experimental Analysis ◽  
Harmonic Distortion ◽  
Power Electronic ◽  
Power Distribution System ◽  
Passive Filter ◽  
Home Based ◽  
Harmonic Pollution ◽  
Non Linear

Nowadays, the growing use of non-linear loads in home appliances gives rise to harmonic pollution in the electrical power distribution system, which degrades the power quality. Many domestic appliances have power electronic converters that characteristically draw a non-sinusoidal current waveform. Short-term effects of non-linear appliances are causing malfunction and damage of electronic devices and long-term effects are thermal losses in equipment and cable, hasty aging, and reduced life period of devices. The whole impact depends on the power ratings and quantity of electrical appliances and their harmonic diversity. Usually, the existence of harmonics and their effects in a domestic zone are not monitored as compared to the industrial and commercial sectors. To ensure the quality of power, it is necessary that a harmonic study is carried out to identify the details of harmonic pollution that is polluting sources, the parameters or quantities they pollute in each instance, and effective improvement methods. In this paper, experimental analysis was performed which focuses on traditional single-phase home-based electrical appliances causing the quality of power down, and implementation of the passive filter is suggested for improvement in the quality of power. All experimental harmonic distortion measurements of home-based electrical appliances were performed in the power electronic laboratory of QUEST Nawabshah. Harmonic distortion indices measurements of home-based electrical appliances have been taken using the fluke power quality Analyzer (PQA) instrument. The analysis shows that from many types of loads, switch mode power supply (SMPS) based load is rich in harmonic distortion. Therefore, an equivalent model of SMPS load in MATLAB/Simulink is developed to analyze improvement in power quality by designing and implementation of the passive filter. The outcome of this research work will be helpful to make the source current sinusoidal by reducing harmonic distortion and thus improve the power quality.

scholarly journals USE OF TRANSFORMERS AS PAIRING DEVICES FOR MEASURING SYSTEMS

2020 ◽  
Vol 1 (7(76)) ◽  
pp. 66-70
Author(s):  
G.A. Bolshanin ◽  
E.G. Skulina
Keyword(s):  
Power System ◽  
Electric Power ◽  
Electric Energy ◽  
Alternating Current ◽  
Electric Power System ◽  
Magnetic Characteristics ◽  
Measuring Systems

The execution of devices of interface of means of control of indicators of quality of electric energy with the electric power system in the form of measuring transformers of voltage and shunt of alternating current is shown. This is most preferable due to the lack of non-linearity in the working area of magnetic characteristics. A transformer substitution scheme is shown, as well as experiment execution schemes, as a result of which the necessary parameters are determined.

scholarly journals KAJIAN KUALITAS DAYA LISTRIK PLTS SISTEM OFF-GRID DI STT-PLN

2019 ◽  
Vol 10 (2) ◽  
pp. 93-101
Author(s):  
Aas Wasri Hasanah ◽  
Tony Koerniawan ◽  
Yuliansyah Yuliansyah
Keyword(s):  
Power Plant ◽  
Power Quality ◽  
Power Plants ◽  
Solar Power ◽  
Electrical Power ◽  
Harmonic Distortion ◽  
Electrical Equipment ◽  
Poor Quality ◽  
Solar Power Plants

Inadequate power quality causes damage and may even cause damage to electrical equipment. Solar Power Plants Off-grid is a stand-alone power plant is not connected to the network. This system uses storage media such as batteries to maintain the availability of electricity at night or when the sun's intensity decreases. Solar power plant has a PV module that works based on the intensity of the captured sunlight and the inverter that can change the dc voltage into ac where as is known in the inverter there are non linear components which can result in poor quality of electrical power in this case the total harmonic distortion and voltage variations change. This may result in damage to electrical equipment. The electrical power quality of the STT-PLN off-grid PLTS will be analyzed and compared with the IEEE 519-1992 and SPLN 1: 1995 standards. Based on the results of the discussion that the THDi and THDv values ​​are still above the established standard limit of 5%.

Research of Power System Harmonic Analysis Based on Wavelet Theory

2012 ◽  
Vol 588-589 ◽  
pp. 626-631
Author(s):  
Tao Jin ◽  
Wen Jing Gu
Keyword(s):  
Wavelet Transform ◽  
Power System ◽  
Harmonic Distortion ◽  
Power Electronic ◽  
Wavelet Theory ◽  
Nonlinear Load ◽  
Measurement Analysis ◽  
Novel Method ◽  
Simulation Results ◽  
Power Electronic Technology

In recent years, the nonlinear load of the industry is increasing with the development of the power electronic technology. The harmonic distortion is getting more and more serious. So measurement, analysis, and restraining the harmonic of power system have become an important topic for the environmental management of the power system. This paper presented a novel method to analyze power harmonic using wavelet transform, and researched the technology how to detect and treat the harmonic in the power grid. The performance applying the wavelet method to detect harmonic from experimental signals was presented. The simulation results showed that wavelet transform can extract power harmonic in different frequency from the signal effectively.

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