نتایج جستجو برای: unified power quality conditioner
تعداد نتایج: 1268953 فیلتر نتایج به سال:
<span lang="EN-US">Analysis of bad data in an IEEE 14 bus system with <a name="_Hlk121211016"></a>phasor measuring units (PMU) devices is carried out this paper. The normal operating condition achieved from the PMU compared to during faults system. A principal component analysis (PCA) technique proposed paper for distinguishing difference between transmission and fault conditi...
With an increase of non-linear load in today’s electrical power systems, the rate quality drops and voltage source frequency deteriorate if not properly compensated with appropriate device. Filters are most common techniques that employed to overcome this problem improving quality. In paper improved optimization technique filter applies system is based on a particle swarm using artificial neura...
The power quality improvement becomes one of the important tasks while using microgrid as main supply. Because is combination renewable energy resources. resources are intermittent in supply and at peak loading condition it has to required power. So, problems may increase that time. Out all issues voltage drop harmonic distortion considered most serious one. In recent years unified conditioner ...
In order to enhance the quality of electricity in microgrids powered by renewable energy, this study introduces a three-phase Active Power Conditioner. The six IGBT bridge is managed three hysteresis controllers. Disturbances microgrid, which fragile electrical grid, can be crucial. Conditioner (APC), described paper, serves as between microgrid's AC bus and energy sources. implementation an up...
Unified power quality conditioner (UPQC) with energy storage is commonly based on conventional capacity configuration strategy angle control. It has problems such as phase jumping before and after compensation. DC-link cannot continuously emit active externally. Therefore, this paper presents the compensation of full load voltage magnitude in UPQC. The topology UPQC integrated a series filter (...
This paper presents novel Unified Power Quality Conditioner (UPQC) system based on seven-level Neutral Point Clamped (NPC) inverter using combined PD-SPWM and fuzzy control scheme. The proposed UPQC is adopted to mitigate source current harmonics compensate all voltage disturbances simultaneously. It designed by the combination of series shunt Active Filters (AFs) connected a common DC link cap...
در سالهای اخیر،اختلالات کیفیت توان مهمترین موضوع می باشد که محققان زیادی را برای پیدا کردن راه حلی برای حل آن علاقه مند ساخته است.امروزه کیفیت توان در سیستم قدرت برای مراکز صنعتی،تجاری وکاربردهای بیمارستانی مسئله مهمی می باشد.مشکل ولتاژمثل شرایط افت ولتاژواضافه جریان ناشی از اتصال کوتاه مدار یا وقوع خطا در سیستم بیشتر مورد توجه می باشد. برای مطالعه افت ولتاژ واضافه جریان،محققان زیادی کار کرده ...
The usage of electric vehicles (EV) increased in recent years as the design and performances are nearly similar to petrol vehicles. main source energy for EV is taken from grid charging. So, penetration EVs alternating current (AC) creates more power quality issues like voltage sag, swell harmonics current. This can also be produced renewable resources photovoltaic (PV) generation. PV used dire...
Aiming further to reduce its switching losses, an appropriate discontinuous modulation scheme is proposed and studied here in detail to doubly ensure that maxi-mal reduction of commutations is achieved. With an appropriately designed control scheme had incorporated with nine-switch converter is shown to favorably raise the overall power quality and voltage mitigation hence justifying its role a...
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