Classification of power quality events – A review

Saini, Manish Kumar; Kapoor, Rajiv

doi:10.1016/j.ijepes.2012.04.045

Cited by 189 publications

(98 citation statements)

References 148 publications

(157 reference statements)

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“…Inverter power quality is one of the problems due to the power conversion process [9].The electromagnetic phenomenon which describes the voltage or current in a certain time is referring to "power quality" (PQ) [10]. Grounded on this information, the loads may malfunction or not work at all at the presence of the PQ [11]. Therefore, the increase using of the RES in the future will leads to more research in the PQ field [11].…”

Section: Voltage Source Inverter Qualitymentioning

confidence: 99%

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Performance Evaluation of Two-Level Photovoltaic Voltage Source Inverter Considering SPWM and SVM Switching Controller

Mutlag¹

2017

IJERA

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The switching control schemesincluding sinusoidal pulsewidth modulation (SPWM) and space vector modulation (SVM) are very important for the efficiency and accuracyof the voltage source inverter (VSI). Therefore, this paper presents a performance evaluation of a two-level VSI for the photovoltaic (PV) system based on adopted switching controllers namely, SPWM and SVM switching methods. The evaluation procedure and accuracy are demonstrated and investigated using simulations conducted for a 1.5 kW inverter in a MATLAB/Simulink environment. Two types of loads are utilized to assess the performance of the VSI which are resistive (R) load and resistive and inductive (RL) load. Total harmonic distortion (THD) is used for the comparison of the SPWM and the SVM. Results show that the SVM performs better compared with the SPWM in terms of THD rate. The THDs for SVM based system are found to be 0.02% and 0.08% for the R and RL, respectively; whereas the THDsfor SPWM controller are found to be 0.43% and 0.51% for the R and RL, respectively. Furthermore, mean square error (MSE) is also consideredas a statistical indicator. The MSE indicates that the SVM switching controller technique have superior outcomes compared with the SPWM switching controller technique and thus increases the efficiency of the whole system.

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Section: Voltage Source Inverter Qualitymentioning

confidence: 99%

“…Grounded on this information, the loads may malfunction or not work at all at the presence of the PQ [11]. Therefore, the increase using of the RES in the future will leads to more research in the PQ field [11]. Preserving a good PQ is significant for the reliability of the loads.…”

Section: Voltage Source Inverter Qualitymentioning

confidence: 99%

Performance Evaluation of Two-Level Photovoltaic Voltage Source Inverter Considering SPWM and SVM Switching Controller

Mutlag¹

2017

IJERA

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“…El término se utiliza para describir a la energía eléctrica que alimenta una carga y la capacidad de ésta para que funcione correctamente, tomando en cuenta esto, se puede decir que sin la adecuada potencia los dispositivos eléctricos pueden funcionar de manera incorrecta o simplemente no funcionar en lo absoluto (Saini & Kapoor, 2012).…”

Section: Calidad De Energíaunclassified

Influencia de las ráfagas de viento en la calidad de la energía de los parques eólicos

2014

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(Recibido: 2014/04/30 - Aceptado: 2014/09/22)La matriz energética mundial está cambiando debido a que el consumo de energía en los últimos años se ha duplicado. En muchos países la instalación de centrales de energías renovables no convencionales se ha convertido en la solución a este crecimiento. La integración de este tipo de energías a la red eléctrica causa interés en el estudio de las propiedades eléctricas que afectan la producción de energía. Este documento es una revisión de los conceptos y fenómenos de calidad de energía y cómo estos se generan en parques eólicos. La eficiencia de los aerogeneradores se ve afectada por diversos factores, entre los cuales se destacan: las maniobras en subestaciones y los factores climáticos como las ráfagas de viento causantes de variaciones en la curva de potencia. El monitoreo constante en los sistemas eléctricos y el análisis de datos ofrece un alto potencial en la mejora de los procesos de producción y distribución de la energía.

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“…The steep rise in lighting current within microseconds, coupled with the inductance of the object it strikes, could generate step or touch potentials with values well above the safety limit that the human body can endure. Lightning has been acknowledged as a primary source of power quality degradation in power systems [17]. There have been an enormous amount of studies conducted on various aspects of the grounding system, with the most recent ones as found in the literature [18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Safety Analysis of Grounding Resistance with Depth of Water for Floating PVs

Lim

Kim

et al. 2017

Energies

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Abstract:Underwater grounding methods could be applied in deep water for grounding a floating PV (photovoltaic) system. However, the depth at which the electrodes should be located is a controversial subject. In this study, grounding resistance was measured for the first time by analyzing the water temperature at different water depths in an area where a floating PV system is installed. The theoretical calculation of the grounding resistance has a maximum error range of 8% compared to the experimentally measured data. In order to meet the electrical safety standards of a floating PV system, a number of electrodes were connected in parallel. In addition, the distance between electrodes and number of electrodes were considered in the test to obtain a formula for the grounding resistance. In addition, the coefficient of corrosion was obtained from an electrode installed underwater a year ago, and it was added to the formula. Through this analysis, it is possible to predict the grounding resistance prior to installing the floating PV system. Furthermore, the electrical safety of the floating PV system could be achieved by considering the seasonal changes in water temperature.

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Classification of power quality events – A review

Cited by 189 publications

References 148 publications

Performance Evaluation of Two-Level Photovoltaic Voltage Source Inverter Considering SPWM and SVM Switching Controller

Performance Evaluation of Two-Level Photovoltaic Voltage Source Inverter Considering SPWM and SVM Switching Controller

Influencia de las ráfagas de viento en la calidad de la energía de los parques eólicos

Safety Analysis of Grounding Resistance with Depth of Water for Floating PVs

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