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(searched for: doi:10.1109/tpwrd.2015.2508498)
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Prabaakaran K, Senthil Kumar R, Jain Vinith P R, Monisha S, Ranjana Devi S, Supriya V
Innovations in Information and Communication Technology Series pp 15-19; doi:10.46532/978-81-950008-1-4_004

Abstract:
This paper proposes the concept of reactive power compensation with the aid of STATCOM (static synchronous compensators) and three phase multilevel inverter. The classification of multilevel inverters under three major types which are H-bridge inverter, flying capacitors-based inverter and diode clamped multilevel inverter. Among these multilevel inverters, the diode clamped type is stressed in this paper due to its capability to process 3-phase output in the absence of any input. Here the reactive power is compensated using 7-level based multilevel inverter with diode clamps are made utilizing the capacitors banks, diodes and switches which would therefore abates the voltage stresses and harmonics resulting in higher efficiency of the power system. Besides the functioning of multilevel inverter, STATCOM is also utilized to improve the regulation of reactive power flow and thereby, enhances the stability under transient condition of a power system. Subsequently, the compensated seven level output is procured by the sinusoidal PWM technique.
Azhagesan Dheepanchakkravarthy, Manickavasagam Parvathy Selvan,
Journal of The Institution of Engineers (India): Series B, Volume 100, pp 9-22; doi:10.1007/s40031-018-0351-7

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, Nicolae Golovanov, Luminita Elefterescu, ,
2018 18th International Conference on Harmonics and Quality of Power (ICHQP) pp 1-6; doi:10.1109/ichqp.2018.8378847

Abstract:
The connection in the electric network of perturbing loads must be done such that aggregating the all disturbance contributions of the loads to not exceed the threshold levels. The results of a flicker monitoring campaign for a period of 1 month, with several power supply configurations, are reported in this paper. The flicker contribution of each perturbing load was determined such that to establish the share of each end-user to the required investment for a mitigating equipment.
IEEE Access, Volume 6, pp 24035-24047; doi:10.1109/access.2018.2829148

Abstract:
Flicker is a very common power quality disturbance due to the inclusion of photovoltaic generation on the electric grid. This paper presents a methodology for flicker estimation in a photovoltaic generation that fuses multiple signal classification (MUSIC) and discrete wavelet transform (DWT) to provide high-resolution frequency estimation with an accurate amplitude measurement. This tool considers that flicker is not stationary over time and that more than one frequency component can exist on a voltage signal. Additionally, this work finds that sun irradiance, temperature and the action of the solar inverter are the sources of flicker in photovoltaic generation. The methodology is applied to real signals from three days with different weather conditions. Additionally, two different solar inverters are evaluated to see their influence on the parameters of flicker. Results show that flicker can contain more than one frequency component that can change over time. Finally, this work shows that around 70 to 80 percent of flicker is linked to irradiance and cell temperature whereas the 20 to 30 percent can be attributed to the operation of solar inverters.
Radwa M. Abdalaal, Carl Ngai Man Ho
IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society pp 1629-1634; doi:10.1109/iecon.2017.8216276

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Mohamed Atef Elsaharty, Jose Ignacio Candela, , Mohammed Atef Elsaharty
IEEE Transactions on Power Delivery, Volume 33, pp 1744-1754; doi:10.1109/tpwrd.2017.2755725

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George Cristian Lazaroiu, Nicolae Golovanov, Luminita Elefterescu, , Dario Zaninelli
2017 IEEE International Conference on Environment and Electrical Engineering and 2017 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe) pp 1-6; doi:10.1109/eeeic.2017.7977695

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Haidar Samet, Sara Gashtasbi, Nima Tashakor,
IET Science, Measurement & Technology, Volume 11, pp 241-248; doi:10.1049/iet-smt.2016.0084

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