Restraint method of voltage total harmonic distortion in distribution system by power conditioner systems using measured data from IT switches

Islanding detection of Distributed Generation (DG) is considered as one of the most important aspects when interconnecting DGs to the distribution system. It was the crucial problem in distributed generation. This detection phenomenon having a great importance. These detection methods are divided into active and passive islanding detection. These two methods are based on changing in parameters such as frequency, voltage and current harmonics. But these methods have some challenges such as reduction in power quality and large Non Detection Zone (NDZ). In this paper, the proposed method is change of Total harmonic distortion (THD) will be studied for islanding detection diagnosis. The studied system was considered by following the standard IEEE-1547 and UL-1741.The system was simulated using MATLAB/ SIMULINK.

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Prediction of total harmonic distortion based on harmonic modeling of nonlinear loads using measured data for parameter estimation

2016 17th International Conference on Harmonics and Quality of Power (ICHQP) ◽

10.1109/ichqp.2016.7783480 ◽

2016 ◽

Cited By ~ 3

Author(s):

Daniel S. Braga ◽

Patricia R. S. Jota

Keyword(s):

Parameter Estimation ◽

Harmonic Distortion ◽

Measured Data ◽

Total Harmonic Distortion ◽

Nonlinear Loads

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Islanding Detection in a Distribution System with Modified DG Interface Controller

International Journal of Applied Power Engineering (IJAPE) ◽

10.11591/ijape.v6.i3.pp133-141 ◽

2017 ◽

Vol 6 (3) ◽

pp. 133

Author(s):

Abbineni Sai Subhadra ◽

P. Linga Reddy ◽

Shailesh B. Modi

Keyword(s):

Power Quality ◽

Distributed Generation ◽

Distribution System ◽

Harmonic Distortion ◽

Total Harmonic Distortion ◽

Detection Methods ◽

Islanding Detection ◽

Detection Zone ◽

Current Harmonics ◽

Crucial Problem

Islanding detection of Distributed Generation (DG) is considered as one of the most important aspects when interconnecting DGs to the distribution system. It was the crucial problem in distributed generation. This detection phenomenon having a great importance. These detection methods are divided into active and passive islanding detection. These two methods are based on changing in parameters such as frequency, voltage and current harmonics. But these methods have some challenges such as reduction in power quality and large Non Detection Zone (NDZ). In this paper, the proposed method is change of Total Harmonic Distortion (THD) will be studied for islanding detection diagnosis. The studied system was considered by following the standard IEEE-1547 and UL-1741. The system was simulated using MATLAB/ SIMULINK.

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A Three-Level Universal Electric Vehicle Charger Based on Voltage-Oriented Control and Pulse-Width Modulation

Energies ◽

10.3390/en12122375 ◽

2019 ◽

Vol 12 (12) ◽

pp. 2375 ◽

Cited By ~ 8

Author(s):

Ali Saadon Al-Ogaili ◽

Ishak Bin Aris ◽

Renuga Verayiah ◽

Agileswari Ramasamy ◽

Marayati Marsadek ◽

...

Keyword(s):

Digital Signal Processor ◽

Distribution System ◽

Pulse Width ◽

Pulse Width Modulation ◽

Harmonic Distortion ◽

Total Harmonic Distortion ◽

Input Current ◽

Special Focus ◽

Renewable Energy Resources ◽

Battery Charging

Electric vehicles (EVs) could be used to address the issues of environmental pollution and the depletion of non-renewable energy resources. EVs, which are energized by a battery storage system, are becoming attractive because they keep the environment clean. Furthermore, the cost of EVs is becoming cheaper. Thus, EVs will become a significant load on utility distribution system in the future. EV chargers play a significant role in the expansion of EVs. The input current of an EV charger with a high total harmonic distortion (THD) and a high ripple distortion of the output voltage can impact battery life and battery charging time. Furthermore, the high cost and large size of the chargers are considered other issues in EV development. This work presents the complete design process of a universal EV charger with a special focus on its control algorithms. In this regard, a novel control algorithm based on the integration of voltage-oriented control (VOC) and the sinusoidal pulse-width modulation (SPWM) technique is proposed to ensure effective Levels 1, 2, and 3 battery charging. A simulation of the universal EV charger was conducted and assessed in MATLAB–Simulink. Moreover, a laboratory prototype was constructed with a TMS320F28335 digital signal processor (DSP) programmed as the controller to validate its operation and performance. The findings show that the proposed charger is able to provide a controllable and constant charging voltage for a variety of EVs, with an input current of low total harmonic distortion (THD) and an almost unity power factor.

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Design of Efficient Power Filter with Reduced Distortion Using Control Algorithm

IJOSTHE ◽

10.24113/ijosthe.v7i4.129 ◽

2020 ◽

pp. 1-10

Author(s):

Rahul Dhakad ◽

Dr. Rakesh Saxena

Keyword(s):

Distribution System ◽

Output Voltage ◽

Harmonic Distortion ◽

Total Harmonic Distortion ◽

Renewable Energy Resources ◽

Nonlinear Loads ◽

Nonlinear Load ◽

Power Filter ◽

Distortion Level ◽

Voltage Output

The electrical distribution system is facing undesirable power quality disturbances due to different types of linear/nonlinear loads on the supply system. The objective of the project is to reduce the distortion level in voltage or current input to the load and at the output of the filter. To design a simple but highly viable hybrid active power buffer that is capable of feeding less distorted voltage to the nonlinear load model. To present an optimal controlling of these buffers so as to minimize the voltage distortion by designing a different algorithm for the same. Comparing the THD levels of the output voltage waveform with the standard controlling method with the proposed control design to further enhance the proposed design such that it is practically feasible to be implemented in grid system having renewable energy resources. In this work, a power filter has been designed using different algorithms with an objective to reduce the Total Harmonic Distortion in the voltage output waveforms. The total harmonic distortion in the voltage output waveform being fed to the load using only the PQ_RLS algorithm is found to be 2.18 %. In the case of the output voltage from the power buffer using PQ_RLS algorithm, the THD level is 0.17 %. The distortion level in the output voltage waveforms in both the cases being fed to the load when compared, it is found that RLS algorithm in combination with PQ algorithm is more effective in reducing the distortion as compared to standard RLS method or PQ method.

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Impact of EV Chargers on Total Harmonic Distortion in the Distribution System Network

2019 IEEE 6th International Conference on Energy Smart Systems (ESS) ◽

10.1109/ess.2019.8764244 ◽

2019 ◽

Cited By ~ 2

Author(s):

Andrii Bosak ◽

Alla Bosak ◽

Leonid Kulakovskyi ◽

Taras Oboronov

Keyword(s):

Distribution System ◽

Harmonic Distortion ◽

Total Harmonic Distortion

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Analysis of Measured Data in Unbalanced Distribution System and Method of making of Distribution System Model for Analyzing

IEEJ Transactions on Electronics Information and Systems ◽

10.1541/ieejeiss.136.759 ◽

2016 ◽

Vol 136 (6) ◽

pp. 759-766 ◽

Cited By ~ 2

Author(s):

Yu Fujita ◽

Hiroshi Kobayashi ◽

Takanori Kodera ◽

Mutsumi Aoki ◽

Hiroto Suzuki ◽

...

Keyword(s):

Distribution System ◽

Measured Data ◽

System Model

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

International Journal of Systems Assurance Engineering and Management ◽

10.1007/s13198-021-01185-w ◽

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.

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