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.

The Camparison of Harmonic Distortion Self-Excited Induction Generator with Isolated Synchronous Generator under Non-linear Loads

2015 ◽  
Vol 6 (4) ◽  
pp. 759
Author(s):  
Refdinal Nazir ◽  
Krismadinata Krismadinata ◽  
Rizka Amalia
Keyword(s):  
Harmonic Distortion ◽  
Synchronous Generator ◽  
Induction Generator ◽  
Diagram Method ◽  
Current Harmonics ◽  
Linear Load ◽  
Laboratory Test Results ◽  
Non Linear ◽  
Harmonic Components ◽  
Non Linear Load

In this paper, the harmonic distortion for Self-Excited Induction Generator (SEIG) and an isolated synchronous generator (ISG) under non-linear load during steady state conditions are analyzed. The voltage and current harmonics distortion for both generators are calculated using the transfer function method in frequency domain for SEIG and phasor diagram method for ISG. This analysis is done independently one by one component for all harmonic components appear. The analysis results for both generators are verified to the laboratory test results. For loading with the same non-linear load to both generators, the harmonics distortion on the stator windings of SEIG was smaller than compare ISG. In addition, the harmonic distortion effects on other loads connected to PCC point of SEIG was lower than the other loads connected to ISG.

scholarly journals Analisis Power Quality Sistem Kelistrikan Pada Apartemen Malang City Point

2020 ◽  
Vol 7 (3) ◽  
pp. 39-44
Author(s):  
Zahra Mulia Sari ◽  
Ahmad Hermawan ◽  
Sapto Wibowo
Keyword(s):  
Power Quality ◽  
Harmonic Distortion ◽  
Quality Analysis ◽  
Measurement Tool ◽  
Web Based ◽  
Linear Load ◽  
Current Voltage ◽  
Non Linear ◽  
Save Energy ◽  
Non Linear Load

Abstract: The use of equipment with a high non-linear load causes a decrease in the quality of power (Power Quality) at Malang City Point Apartment. Power quality analysis is an important requirement in the electrical system and needs special attention to save energy and costs. Savings can be achieved by reducing or even eliminating losses resulting from the use of non-linear loads. This thesis aims to present the results of an analysis of power quality conditions at Malang City Point Apartments. This analysis includes voltage, current, voltage and current imbalance, power factor, current THD and measured voltage. The system is designed using Web - Based Power Quality Meter (PM 5110) as a measurement tool, then the results are analyzed and compared with existing standards to evaluate power quality in Malang City Point Apartments. Among the various power quality problems measured, it was found that the main problems of power quality in Malang City Point Apartments were the occurrence of overvoltages and current harmonic distortion. So it is necessary to do repairs on this to overcome the overvoltage by reducing the operation of equipment that has a large load and repairing neutral conductors. Furthermore, to reduce the system harmonics, it is designed by designing a single tuned passive filter and simulated using the ETAP software version 16.0.0.

scholarly journals Analyzing the power quality for smart grid with hybrid conventional resources.

2018 ◽  
Vol 7 (2.12) ◽  
pp. 261
Author(s):  
Deepa Kumari ◽  
Sunny Vig
Keyword(s):  
Smart Grid ◽  
Power System ◽  
Power Quality ◽  
Fuzzy Controller ◽  
Smart Devices ◽  
Computational Techniques ◽  
Linear Load ◽  
Non Linear ◽  
Non Linear Load ◽  
Flow Of Information

The upcoming advanced electric grid or smart grid is define as the intelligent junction of smart devices making a power system featured by the next level advancement of flow of information and electricity in two way. In this work we have come out with the better quality of energy generated at transmission side which also involves the implementation of fuzzy controller. As a goal this work is possessing working of any 2 non conventional resources i.e. wind and PV solar panel to run any non linear load by providing the controlled power to it through fuzzy controller. A general experimentation was performed to examine the current condition of art of smart grid, and removal of disturbances and their affect on power quality. Which is due to the complications, huge heterogeneity of smart grid and high amount of information to be processed, computational techniques are enabling technologies for its advancement and success in future. Hence the motive of this work is to implement fuzzy controller in combination with non conventional resources in smart grid to the production of needed amount of electricity to make the non linear load work accordingly. Different artificial technologies give support to the development of power system.  

scholarly journals Pengaruh Harmonic pada Peralatan Tegangan Satu Phasa di Ruangan Administrasi Bandara

2021 ◽  
Vol 7 (1) ◽  
pp. 71-76
Author(s):  
Catra Indra Cahyadi ◽  
I Gusti Agung Ayu Mas Oka ◽  
Yanti Daryanti
Keyword(s):  
Power Quality ◽  
Personal Computer ◽  
Harmonic Distortion ◽  
Simulation Method ◽  
Linear Load ◽  
Quality Analyzer ◽  
Non Linear ◽  
Non Linear Load ◽  
Quality Of Electric Power

Beban non linier yang belum berbentuk gelombang sinusoidal telah terdistorsi oleh distorsi harmonisa arus. Beban non linier merupakan salah satu penyebab timbulnya distorsi yang dapat mengakibatkan kualitas daya listrik semakin buruk. Paper ini membahas hasil simulasi penggunaan filter tunggal yang disetel untuk mengurangi distorsi yang disebabkan oleh beban non linier akibat personal computer dan printer untuk pencetakan. Pengukuran menggunakan alat power quality analyzer fluke. Hasil pengukuran terhadap 4 merk PC yang berbeda menunjukan bahwa nilai beban non linier yang dihasilkan mengalami penurunan. Beban personal komputer merk A dari THDi sebesar 120,7 % menurun menjadi 110,8% , merk B dari THDi sebesar 121,9% menjadi 109,9 %, merk C dari THDi sebesar 150,1% menurun menjadi 100,2 %, merk D dari THDi sebesar 176,2% menurun menjadi 104,1 %. Penurunan total harmonic distorsion arus setelah direduksi sebesar 0,8 – 1 %. Penggunaan filter berhasil menurunkan nilai THDi. Non-linear loads that have not been in the form of sinusoidal waves have been distorted by current harmonic distortion. Non-linear loads, one of the causes of distortion can cause the quality of electric power to get worse. Research on the simulation method uses a single filter as a filter that is adjusted to reduce distortion caused by non-linear loads using personal computers and printers for printing machines. Where the measurement uses a Fluke Power quality analyzer, the resulting non-linear load value is obtained on non-linear loads with personal computer loads brand A has a THDi of 120.7% decreasing to 110.8%, brand B THDi of 121.9% becomes 109.9%, the C THDi brand by 150.1% decreased to 100.2%, the D THDi brand by 176.2% decreased to 104.1% where the decrease in the total harmonic current distortion after reduction was 0.8 - 1%. The use of a filter was successful in lowering the THDi value.

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 Power Quality and Enhancement Techniques: Research Gaps and Current Trends

2019 ◽  
Vol 9 (2) ◽  
pp. 1989-1995
Keyword(s):  
Power System ◽  
Power Quality ◽  
Nonlinear Load ◽  
Power Filters ◽  
Current Trends ◽  
Current State ◽  
Linear Load ◽  
Electrical Devices ◽  
Power Quality Improvement ◽  
Non Linear Load

The increased use of electricity-dependent devices has posed many concerns to the power industry. The devices like electric motors, printers, generators, transformers, computers, etc are widely used in today’s world. The electronic devices increase the non-linear load to the power system which leads to the power quality (PQ) issues by which the electrical devices may get affected with fluctuation causing equipment failure, power system failure, etc. In order to resolve the PQ related issues and harmonics mitigation occurred due to nonlinear load power filters were introduced in decades ago. This paper deals with the review of existing researches that uses power filters and other methods for power quality improvement. The paper also gives gaps and the current state of the art in the recent researches which have futuristic scope in the research domain.

Experimental verification of DSTATCOM for various non-linear load

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Pushpanjali Shadangi ◽  
Sushree Diptimayee Swain ◽  
Pravat Kumar Ray ◽  
Gayadhar Panda
Keyword(s):  
Fuzzy Logic Controller ◽  
Harmonic Distortion ◽  
Pattern Generation ◽  
Total Harmonic Distortion ◽  
Synchronous Reference Frame ◽  
Linear Load ◽  
Hysteresis Controller ◽  
Frame Method ◽  
Non Linear Load ◽  
Static Compensator

Abstract This paper elaborates a hybrid synchronous reference frame method has been proposed for the distribution static compensator (DSTATCOM) to enhance the compensation performance. This controller is designed in such a way that it generate the reference with respect to the change in load to reject the harmonics. Furthermore, a hysteresis controller is employed for switching pattern generation. Fuzzy logic controller is also implemented in MATLAB/simulink environment here to analyze the total harmonic distortion. Experimental analysis of the DSTATCOM demonstrates the potency and reliability of proposed controller over existing control strategy in the from of total harmonic distortion.

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.

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